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Cubycon 2 Complete

All star lineup
A plug-&-play 5.1 system with flat subwoofer and A/V receiver
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Cubycon Complete
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Highlights

Why we love this product
Introducing our all-star lineup for maximum entertainment: The new Cubycon 2 Complete is a feature-packed, all-in-one system that offers nearly invisible room integration thanks to a compact A/V receiver and flat subwoofer.
Key advantages at a glance
  • A plug-&-play 5.1 system with flat subwoofer and A/V receiver
  • Balanced, neutral and detailed playback with music, movies & games
  • High-performance 2-way micro loudspeakers made from aluminium with coaxial drivers
  • Includes Bluetooth 4.0, HDMI, 3D support, 360 watt class D amplifier from Texas Instruments
  • The CoreStation is an ulra-compact A/V receiver for silent easy-to-integrate operation
  • 3 bass drivers in the subwoofer produce deep, dry bass down to 35 Hz
  • Flat wireless subwoofer for anywhere room placement
What others are saying about us
(4.83 of 5 from 6 Reviews)
All ratings
Features

Overview of our technologies

Bluetooth
Bluetooth aptX
plug & play
FM Radio
PC Gaming
HDMI 3D
Dolby
dts Digital Entertainment
Downfire
Dolby Pro Logic II
Everything you need at half the size

PlayStation 4, Xbox One, Wii U, televisions, Blu-ray players, SAT or cable receivers, Apple TV, smartphones and tablets can all be easily included into your home cinema system. Simply connect each source device to one of the CoreStation’s HDMI, digital or analog connections or stream your audio content via Bluetooth. You won’t require another A/V receiver, decoder or amplifier.

AV-Receiver 5.1 null Corestation Teufel
An utterly inconspicuous system

The CoreStation is the only AV receiver on the market today that can be completely hidden from view just about anywhere. Requiring an area no bigger than an A4 sheet of paper, the CoreStation can be placed within a drawer or even mounted directly behind a television or lowboard. No matter where you decide to put it – even out of the line of sight – the included remote will be able to control the system.

360-Watt Class-D Texas Instruments amplifier

The CoreStation uses a premium amplifier from Texas Instruments for the highest level of performance along with the least amount of noise. Thrilling dynamics and the finest details are played back along a with a linear frequency response ranging from 20 to 40,000 Hz. So equipped, the CoreStation has no problem playing comparable AV receivers in the 700 Euro range against the wall.

In addition to its incredble performance values, the CoreStation boasts an innovative fanless construction. Our engineers in Berlin designed the system wth heat sinks instead of fans. This makes the CoreStation not only nearly noiseless when in operation, the absence of a mechanical cooling system is what allows for the CoreStation's compact dimensions.

FM radio and Bluetooth are also including making it easy to tune in to all your favorite podcasts as well as connect to the best music streaming services. Stream music from Spotify or YouTube from your smartphone or tablet to the CoreStation for clear and powerful playback.

         
 
AV-Receiver 5.1 null Corestation Teufel
 
 
 
 
 
   
 
5.1 Lautsprecher richtig aufstellen
Wireless rear speakers

The optional Wireless Audio Set, available separately, allows you to control the rear speakers wirelessly.


Front

The RearStation and SubConnect connect to the rear speaker and subwoofer wirelessly

RearStation 4 Main Slave Back

Back

The RearStation transmits the signal to the rear speaker

RearStation 4 Main Master Back
Use your standard TV remote

Thanks to HDMI CEC, it's possible to control volume levels with your standard TV remote. A simple initial pairing procedure is all that's required.

Cubycon 2

Immersive, edge-of-your seat home cinema has never been so... small. With the Cubycon 2, Teufel Audio redefines micro speaker sound. Experience absolutely thrilling sound in your living room with television, movies, music and games with a 5.1 compact speaker set that's easy to integrate and works with just about any A/V receiver.

An understated design, incredible sound

Even for compact speakers, acoustic compromises are a thing of the past. Clear, well-contured tone with sparkling highs, precise voice reproduction, and punchy bass in elegant and compact enclosures that compliment just about any interior is what you can now expect.

With the Cubycon 2, we've blazed new trails in the field of audio technology: Sophisticated coaxial drivers, enclosures made from low-resonating aluminium, three high-performance bass drivers in a specially reinforced subwoofer all conspire to redefine what is possible when it comes to compact speaker sound.

The idea of filling a living room with large speakers keeps many people from enjoying immersive surround sound. That's why we designed the Cubycon satellites in a timeless, inconspicuous, and yet stylish design with a subwoofer that can be either placed upright or laid flat.The Cubycon makes place for you, not the other way around.

Sophisticated features are the hallmark of the Cubyon 2. In addition to a sleek and compact design, this system offers an absolutely incomparible sound. You can look forward to pure power combined with small enclosures that can easily be placed just about anywhere in your listening room - on the wall, a shelf or on stands. A timeless design and typical Teufel quality promise years of enjoyment.

Premium flat active subwoofer
The T 4000 SW bridges the divide between easy room integration and mega bass playback. An incredibly flat enclosure makes it easy to place the T 4000 where it won’t get in your way. That small space behind the sofa or coffee table is enough. In fact, the T 4000 is so slender, it can even be positioned under most sofas, wall mounted or used to support your television. Its highly robust, reinforced MDF enclosure was designed to withstand the weight of conventional televisions making it the ideal sonic pedestal.

In spite of its highly convenient dimensions, T 4000 is driven by 250 watts for power to spare. A three driver system that is already successfully employed in Teufel’s highly popular System 4 THX model is used here as well. This ensures balanced playback based on THX standards and produces powerful, deep bass all the way down to 35 Hz for home cinema that makes you part of the action. Even very high levels are accompanied by very little distortion thanks to the long throw-drivers used.

The T 4000 is a universal subwoofer that can be combined with just about any home cinema set, even very high-performance models. This means the T 4000 is perfect for accompanying surround speakers or for giving an already complete 5.1 set an extra boost.
This wireless module is for use with the T 4000 subwoofer and CoreStation A/V receiver. The module is simply plugged in to a dedicated space at the back of the T 4000.

The wireless module's connection status appears on the CoreStation’s OSD menu as displayed on the television. On the back of the subwoofer alongside the plug for the module is a button and status LED for wirelessly connecting the sub and A/V receiver. Establishing a connection is just as quick and easy as pairing two Bluetooth devices.

Once an initial connection has been established, the CoreStation and T 4000 will automatically pair with each other as long as they are within a 10 meter range and switched on. A wireless connection between A/V receiver and subwoofer makes living room integration even easier without compromising on signal quality. The bass signal is transmitted in lossless sound quality for the same power and punch as a wireless connection.

For the SubConnect wireless module, you’ll need:

1.    T 4000 flat subwoofer
2.    CoreStation

Included components

  • Subwoofer T 4000 SW (without wireless module)
  • power cable
  • CUB 2 FCR
  • CoreStation
  • power cable
  • Remote Control for Corestation
  • HDMI-Cable 1.4 1.5m - C1515V
  • 30m Speaker Cable 1.0mm² - C1030S
  • SubConnect MOD

Specifications

CoreStation
CoreStation
Ultra-compact 5.1 A/V receiver with 360-Watt class-D amplifier, HDMI and Bluetooth. Offers powerful home cinema sound along with extremely flexible placement options. 
CoreStation
Connections
Bluetooth aptX Yes
Bluetooth Yes
Bluetooth 4.0 with aptX
Digital inputs coaxial 1
Digital inputs optical 2
Cinch input 1
Stereo jack 3.5mm - in 2
High level speaker outputs 5
Headphone output 3,5mm 1
Video inputs- HDMI 4
HDMI Version 1.4a (3D)
Video outputs - HDMI 1
Video outputs - HDMI Yes
HDMI Version 1.4a (3D)
Miscellaneous USB port for software updates
Playback
Dolby Digital Yes
DTS Yes
Dolby Pro Logic II Yes
Dolby Pro Logic II Music, movies
Radio
Radio present Yes
Channel memory slot - FM 30
FM - UKW Yes
Electronics
Amplifier technology Class-D
Amplifier configuration 5.0
Amplifier channels 5
Power output capacity impulse (peak) Satellite 100 W
Power output capacity sinus (RMS) Satellite 80 W
Performance measured by (Ohm) 4
Miscellaneous 30 Watt/Rear
Power supply voltage 230 Volt volts
Standby-Function Yes
Standby-Power consumption 0.40 watt
Maximum power consumption 500 watt
Mains cable - IEC connector (non-heating device) Yes
Safety class 2
Storage for settings when disconnected Yes
Miscellaneous Automatic off
Integrated DSP Yes
Integrated DD/dts/PLII-Decoder Yes
Remote control Radio
Materials Aluminium
Presets Yes
Dimensions
Depth 24.00 cm
Width 30.80 cm
Height 6.30 cm
Weight 3.40 kg
CUB 2 FCR
CUB 2 FCR
From low-resonance aluminium, these satellites - with their 80 mm coaxial driver and 20 mm horn tweeter in waveguide technology - include an 80 mm mid-range driver as well. Outstanding frequency accessibility and low distortion at higher frequencies (89 dB 2.83 / 1 m). Impulse capacity from 100 watts (140 watt) Horizontal or vertical placement. The speakers can be mounted on the wall.
CUB 2 FCR
Speaker
Acoustic principle 2-Way-System
Enclosure type Bass reflex
Continuous power handling (IEC - Long Term) 100 Watt
Peak power capacity (IEC - Short Term) 140 Watt
Sensitivity (2.83 V / 1 m) 88 dB
Minimum amplifier output power recommended 20 Watt
Maximum sound pressure level 98 dB/1m
Impedance 4 - 8 Ohm
Frequency range from/to 200 - 22000 Hz
Crossover frequency to Woofer (recommended) 150 - 200 Hz
Tweeter (number per enclosure) 1
Tweeter (diameter) 20.00 mm
Tweeter (material) Silk
Midrange driver (number per enclosure) 2
Midrange driver (diameter) 80.00 mm
Midrange driver (material) Cellulose, coated
Enclosure material Aluminum
Enclosure surface Lacquer, matte
Equalisation openings (pos.) Back
Net internal volume 1.20 Litres
Keyhole plate mounted Yes
Magnetic shielding Yes
Terminal clamps Screw terminals
Suitable for banana plug Yes
Maximum cable diameter 4.50 mm
Suitable for AV receiver Yes
Dimensions
Depth 9.50 cm
Width 9.50 cm
Height 19.00 cm
Weight 1.20 kg
Subwoofer T 4000
Subwoofer T 4000
A flat subwoofer designed to be placed on a wall or under a sofa or television. A 35 Hz low end ensures ample amounts of bone-shaking Teufel bass.
Subwoofer T 4000
Speaker
Acoustic principle 1-Way-System
Downfire Yes
Enclosure type Bass reflex
Maximum sound pressure level 102 dB/1m
Frequency range from/to 35-200 Hz Hz
Woofer (number per enclosure) 3
Woofer (diameter) 130.00 mm
Woofer (material) Cellulose, coated
Miscellaneous Extreme stroke capability
Enclosure material MDF
Enclosure surface Matte lacquer
Integrated stand Yes
Suitable for AV receiver Yes
Connections
Cinch input stereo 1
Electronics
Lowest frequency (-3 dB) 35 Hz
Input gain adjustment Yes
Frequency regulator (range) Yes Hz
Phase control Yes
Amplifier technology Class-D
Amplifier configuration 1.0
Amplifier channels 1
Power output capacity impulse (peak) Bass 240 W
Power output capacity sinus (RMS) Bass 150 W
Miscellaneous DSP from analogue devices
Power supply voltage 230 Volt volts
Standby-Function Yes
Standby-Power consumption 0.40 watt
Mains cable - IEC connector (non-heating device) Yes
Safety class 2
Fuse Yes
Storage for settings when disconnected Yes
Automatic on/off Yes
Dimensions
Depth 30.00 cm
Width 95.50 cm
Height 12.50 cm
Weight 13.20 kg
SubConnect MOD
SubConnect MOD
Wireless module for the T 4000 flat subwoofer and S 6000 SW
SubConnect MOD
Dimensions
Depth 9.00 cm
Width 6.40 cm
Height 2.40 cm
Weight 0.08 kg

Expert reviews

Cubycon 2 Complete review of www.lite-magazin.de
Cubycon 2 Complete review of www.lite-magazin.de
"From a powerful bass as a voluminous foundation to precise and exactly positioned details: Everything here is just right."
www.lite-magazin.de 02.08.2015
"We initially noticed that the CUB 2 FCRs are very flexible: Whether on a shelf, on speaker stands or mounted to a wall – horizontally or vertically – the little speakers work everywhere.“

"With the Cubycon set, it quickly becomes apparent that the combo isn’t interested in specializing in any one thing. The Teufel team would much rather show an absolute all-round talent with strengths in all areas. From a powerful bass as a voluminous foundation to precise and exactly positioned details: Everything here is just right. It especially becomes clear with movies that even quiet scenes are accompanied by an expansive soundstage [...].“

Conclusion:

"We’ll tell it like it is: The Teufel Cubycon 2 Complete is an all-in-one package of the highest calibre. The relatively easy installation makes a frustration-free setup possible for even home cinema beginners and technical laymen and offers an extremely spectacular sound as a reward at the end. By the time one considers the insanely good price/performance ratio, there’s nothing left to be done than to categorize the surround system as the elite of its kind.”

You can read the entire test review (in German) at www.lite-magazin.de
Cubycon 2 Complete review of av-magazin.de
Cubycon 2 Complete review of av-magazin.de
"...we were amazed by the fullness of the sound and dynamics in our test room.”
av-magazin.de 18.02.2015
"… A nearly ‘invisible' home theatre system that the whole family will love.”

“The Teufel System did well in our user test. Considering the “mini” size of the five loudspeakers, we were amazed by the fullness of the sound and dynamics in our test room.”

"One hears a very homogenous sound in all directions thanks to identical driver construction across all five channels. Even the finest details like the creaking of a ship’s beams in Master and Commander are skillfully reproduced in the listening room.”

“When Bond chases the villain with a bulldozer in the first minutes of Casino Royale, it not only rumbles through the living room, it can be felt. The three downward facing drivers [on the T-4000 subwoofer] really do a good job.”

"When it comes to daily use, the set’s suitability for daily use won us over. Once the system’s been setup, one doesn’t need to give it a second thought. The interplay with the TV in our case is [...] perfect. The basic settings on the CoreStation are straight-forward and the small system perfectly assimilates into the living room.”

Conclusion:

“Those who don’t want to do without home cinema sound but who insist on an installation that can easily be accomplished will hit upon the right choice with the Teufel Cubycon 2 Complete. The A/V receiver can be hidden behind the television, the subwoofer under the sofa. Only five satellites remain in the field of site. The controls are simple, installation quickly accomplished. The subwoofer ensures a dynamic, deep and punchy bass. Thanks to an identical construction, the satellites deliver very detailed and homogenous home cinema sound. In short: A nearly ‘invisible’ home theatre system that the whole family will love.”

You can read the entire test review (in German) at www.av-magazin.de
Cubycon 2 Complete review of areaDVD
Cubycon 2 Complete review of areaDVD
"Pleasant and extremely voluminous soundstage"
areaDVD 01/2015
“Cubycon 2 [...] now comes with its own amplifier and a chic as well as innovative subwoofer [...] which can also be controlled wirelessly. [...]
The extremely flat and extra-long dimensions give the subwoofer [...] a lot of flexibility in terms of setup options.”

“Even the receiver [...] has a very pleasant, compact size and can be placed in just about any room.”

Sound

“The system’s excellent spatiality [...] was most pronounced. Then it should be mentioned that the foremost sonic levels emanating from the three front speakers separate themselves well from each other and sound like they were cast from the same mold [...]. In our home theatre, there was an immediate concert atmosphere. [...] The T 4000 [subwoofer] does an amazing job without breaking a sweat.“

Conclusion

+ Great spatiality
+ Flat, wireless subwoofer with powerful bass
+ Very chic, innovative flat subwoofer
+ Extremely stable levels
+ Clean workmanship
+ Dynamic playback in the treble and midrange
+ Compact CoreStation
+ Pleasant and extremely voluminous soundstage

You can read the entire test review (in German) at areadDVD
How our customers rated this product:

Downloads & support

Help regarding this product
Do I also have a 6.1/7.1 playback for a 5.1 recording?
Usually, all 6.1/7.1 AV Receivers can generate a 6.1/7.1 playback from a 5.1 recording. The procedure is comparable with the Dolby Pro Logic Decoder, which generates a matrix circuit from the stereo signal of a centre channel.

The AV Receivers thus generate a rear centre channel from the rear R/L channels of a 5.1 recording through the matrix circuit. The stronger the rear R/L effects on the DVD, the stronger the signal from the rear centre.
Can I connect the LT 4 directly to a DVD player or PC?
No.

The LT 4 is a partially active system that requires AV receiver operation. It has a built-in amplifier that only supplies bass tones in the subwoofer housing That is why an "AV Receiver", i.e. a combination of radio receiver and multichannel amplifier, is essential for using the LT 4.

The subwoofer is connected from the Line In R input to the AV receiver's sub out jack using a mono RCA cable, while the three front satellites are connected to the three speaker outputs of the AV Receiver using the speaker cable and are supplied with power from there.

Connect signal-emitting source appliances such as DVD player or PC etc. directly to the corresponding input jacks on the AV Receiver.
When would it be worth upgrading my 5.1 system to 6.1/7.1 sound?
Naturally 5.1 channel systems that play back all of the sound tracks contained on the DVDs already offer an excellent home cinema experience.

For the new 6.1 or 7.1 sound formats, a rear centre channel is controlled in addition to these channels. This channel, coded in the stereo effect channels, enables the better positioning of effects and music signals directly behind where you are sitting.

If using two speakers for the rear centre channel, the optimal seating position is not tailored to an individually specified position, i.e. you don't have to be seated in the exact centre.

In the following cases we would recommend upgrading to a 6.1 or 7.1 system:

• Your sitting position is not always dead centre, or you often have several viewers

• You have had a 5.1 system for a very long time and would like an improvement

• Your AV amplifier/receiver is designed as a 6.1 or 7.1 receiver and offers the corresponding connection possibilities

• You can also set up one and/or two rear centres. If you are currently building/renovating your house or flat, we would recommend you lay the cables for the additional rear centre channels in any case.

• Modern BluRay players usually issue a true 7.1 surround sound signal at all digital outputs and are thus optimally suitable - presuming the relevant AV Receiver - as a signal transmitter for a 7.1 channel home cinema system.
How do I upgrade my system to a 6.1 or 7.1 sound format?
The choice of speaker(s) depends on the AV Receiver/amplifier. This has an additional power amplifier for one rear centre (6.1) or its two (7.1). You can easily see this by the wattage (e.g. 6 x 100 watt or 7 x 100 watt). To the existing (side) rear speakers for right/left (5.1 technology), one or two additional rear centres are utilised in addition (6.1 or 7.1 technology).

• My AV amplifier/receiver has six connections/power amplifiers (6.1):

In this case we recommend connecting the same centre at the rear that you also used in the front area.

• My AV amplifier/receiver has 7 connections/power amplifiers (7.1):

If you already use dipoles or direct emitters for your 5.1 system, then you have a choice of either supplementing two more dipoles or two direct emitters. For wall assembly and a short distance from the seating location to the rear wall (less than 1.00 metres), we would recommend dipoles. As soon as you want to set up the speakers on bases or on a shelf, then direct emitters would be the better choice.

Information:
Even if the AV Receiver/amplifier only has the connection and power amplifier performance for one rear centre, it is still possible to connect two instead of just one speaker through series connection.

Exception:
• The AV amplifier/receiver has seven connections/power amplifiers, but I can only set up one rear centre. As the 7.1 AV amplifiers/receiver also offer the option of operating just one of the two outputs (usually can be set in the speaker set-up!), you can also only connect just one rear centre.

Here we recommend connecting the same centre to the rear that you also used in the front area. For short distances to the listening location (less than 1.00 metres), a dipole would be the better choice - especially if you are also using dipoles at the sides.
Is it a problem if the speakers are at different distances to where you are sitting?
Since the distance and volume of every individual speaker can be adjusted for the digital home cinema receivers, asymmetrical set-ups can be easily compensated. 
How do I equalise my home cinema system with the help of a sound level meter?
Take the level meter with you to the listening position and point the measuring device directly towards the front centre speaker. Now start the sound generator of the receiver (or of the sound card or DVD player) and equalise all speakers in succession to the same level.

The position and alignment of the measuring device should not be changed during this procedure. For a Teufel sound level meter, proceed as detailed in the following:

1. Remove the protective tab from the battery.

2. Set the weighting to "A" - only the "A" position considers the full frequency range during measuring!

3. Set the response to Slow.

4. Set the Range to 70.

5. Start the test noise from your AV device.

6. Change the volume for every individual channel at the AV device so that the level meter shows 75 dB (meaning between +4 and +6).

7. Done!
What is the difference between the 5.1 and 7.1 configuration?
Compared with the 5.1 set, the 7.1 set has two extra speakers for the back rear centre channel.

The 5.1 channel set plays back all sound tracks on DVDs/Blu-rays and creates an excellent home cinema experience.

With the 7.1 sound format, a rear centre channel is also generated in addition to these channels and distributed to two further speakers (the "rear centre"). This channel, which is encoded in the stereo effects channels, allows better location of effects and music signals directly behind the sitting position.

If you use two speakers for the rear centre channel (i.e. installed 7.1 set), the optimum sitting position is not restricted to one specific place, so you don't have to be sitting exactly in the middle and several listeners can enjoy the best sound.
Where is the optimal place for the centre of my Lautsprecher Teufel Surround System in a 5.1/6.1/7.1 configuration?
Because the centre plays back spoken dialogue, this speaker must be positioned as centrally as possible under or over the TV/monitor or the screen.

If the centre is placed outside the area of 40 centimetres to 1.20 meter height, it should be slightly inclined or angled towards the listener.


Can I order the Teufel speakers in different colours than those offered?
To realise the very reasonable sales prices usual for Teufel, it is not possible to offer the speakers in a multitude of housing designs.

This circumstance would drive up the production and storage costs, which would result in a significantly more expensive sales price.

A paint shop in your vicinity will surely be able to repaint the speaker housing to your preferred colour without loss of warranty - after expiry of the eight-week right of return.
Which cables do I need to connect a Teufel speaker set to the AV Receiver?
A home cinema system needs speaker cables to connect the satellite speakers to the receivers, and an NF mono RCA cable to connect the active subwoofer to the sub out socket of the AV Receiver.
My Bluetooth speaker produces a lesser quality sound with my Windows PC or laptop.
It could be that the speaker is connected as a device with speakerphone function. Please go to: settings menu > devices and printer > BOOMSTER (or other Bluetooth device). Right click on the device and remove the check mark next to the “speakerphone” option.
How must I set the impedance selector switch of my receiver for Teufel speakers?
Here is more detailed information from the AUDIOVISION trade magazine (Issue 4/03) on the subject of impedance settings of the AV Receiver:

Actually, it should be quite simple: Connect the speaker cable to the amplifier and speakers with the correct polarity and you're done. Unfortunately, many manufacturers of home cinema receivers put stumbling blocks out for the users in the form of specifications on the rear of the device and/or in the operating instructions. These usually look like the following (translations): Minimum connection impedance six ohm! Or, speaker impedance six to eight ohm. And what is the problem? There are hardly any six ohm and only a few eight ohm speakers available in Germany. Most of the speakers sold in Germany have a nominal impedance of four ohm. So theoretically, you shouldn't connect them to most of the receivers and amplifiers.

To explain why it is possible after all, we would like to briefly explain the electrical engineering principles: The impedance of a speaker is nothing other than its electrical resistance which it puts up against the flow of current.

• Low resistance = high current
• High resistance = low current

Important to know for operation with an amplifier is that the impedance is not the same for all frequencies but can, for example, change between 50 and 200 hertz by 50 percent. So it isn't entirely correct to speak of impedance for a speaker per se, rather one must always consider the behaviour across the entire range between 20 and 20,000 hertz. To still achieve a reasonable connection value for amplifiers (which, by the way, says nothing about the output impedance of the amplifier itself but rather only which impedances may be connected to it), the creators of the DIN Standard have applied the following stratagem: Only the minimum value of the impedance in the audible range is decisive for the nominal impedance value. This is where the most current flows and the amplifier is subjected to the highest load. Speakers with eight ohm nominal impedance may only exhibit a minimum of 6.4 ohm, and those with four ohm nominal impedance 3.2 ohm. Six ohm are not defined in the DIN (which is applied internationally), but one could use the above values to interpolate that they may exhibit a minimum of 4.8 ohm.

From the definition it is apparent that the nominal impedance is only a rough benchmark, because it says nothing about how the entire course of the impedance looks. No matter whether it only reaches less than 6.4 ohm at one point and is otherwise beyond that, or if the impedance moves close to 3.2 ohm across the entire range, but does not drop below that. The last speaker is surely much more stressful for the amplifier, but has just a nominal impedance of four ohm as the other higher ohm one.

Conventional speakers usually exhibit one to two minima in the bass range, and there is one frequently in the treble range. These minimum values are usually not especially broadband. Aside from the minima, the impedance is usually far higher than the nominal impedance. The amplifiers are really stressed in the bass range because firstly, this is where the most energy is for music and especially the home cinema sound, and secondly, they have to let the most current flow through the impedance minima here.

And lastly, the main reason why many manufacturers don't want four ohm speakers to be connected: In extreme cases - for deep frequencies of consistently 3.2 ohm - the amplifiers in multichannel operation become very hot. A lot of current also means a lot of power loss and thus at lot of waste heat. However, much has to come together before that happens - namely high performance for a longer period of time and setting up the device without sufficient ventilation.

But this extreme case is seldom met in practice. As mentioned above, most of the speakers are not as critical by far, and it is extremely rare to listen to an exorbitant volume for a longer period of time. That is why it is not a problem from a technical point of view to connect speakers with four ohm nominal impedance to all modern home cinema amplifiers and receivers.

However, there is one small catch: The question of warranty. Should a defect occur to the device - which doesn't even have to do anything with the speakers - and the manufacturer notices that four ohm speakers were connected despite the specifications to the contrary, he could refuse repairs due to improper use. As discussions with manufacturers and distributors have shown, this is highly unlikely because they are also aware of the problems.

And for purely legal reasons, Lautsprecher Teufel may not give you a warranty either that your amplifier or receiver will tolerate four ohm speakers. We can only pass along one experience: For several years, the listening tests of the trade magazines are done exclusively with four ohm speakers, and not a single defect has occurred as yet even though the devices are driven to their limits. Also, the performance of each device is usually measured at four and eight ohm irrespective of the specifications of the manufacturers, and the load here is also considerable. It has been a long time since measurement laboratories have seen failures due to to low load impedance.

There are still some special cases, which should be briefly mentioned: Amplifiers/receivers with impedance switches give cautious natures the possibility to stay on the safe side under all possible conditions, even with the warranty. The four ohm setting of the corresponding switch reduces the supply voltage of the power amplifiers so much that excessive heat cannot occur even under unfavourable circumstances. However, the maximum power is then reduced somewhat.

During the listening tests of the trade magazine, these devices are always switched to the "eight ohm" setting to tease out the maximum performance reserves. A defect here has yet to occur. When choosing devices, take a close look because there are devices that only permit speakers with a minimum of six ohm despite the impedance selector switch, like the Pioneer VSX-D2011, for example. This is remarkable in another respect: It possesses a THXSelect license. This license is only issued if certain measured values are complied with that are determined at four ohm for at least the front and centre speakers.

If the THX laboratory had proceeded according to manufacturer's specifications, the VSX-D2011 would never have received a licence, as it would not have been permitted to perform the necessary measurements. By the way: this is also the case for other THX Select devices. But you needn't worry here: The THX logo not only offers additional security, but also a good lever should a manufacturer once refuse a warranty.

The AUDIOVISION TIP

Overheating is the main problem that can occur through the combination of four ohm speakers with power amplifiers that are not released for this.
Therefore, in case of doubt:

• Always set up the AV Receiver or amplifier in well ventilated places and never in a closed housing or close to the heater.

• Occasionally check the temperature of the device.

• Reroute the bass elements via set-up at the subwoofer, if possible.
Can I operate Teufel speakers with an amplifier with 6 ohm outputs?
Without problem!

The fact that some amplifier manufacturers give corresponding information is founded in the VDE standard. To comply with this standard, the devices may not become hotter than 40°C above room temperature so that no one is injured when touching the amplifier.

These 40°C are only reached in the threshold range, meaning for very great volumes for a longer period of time. There is no danger of overloading the amplifier during normal operation. The higher temperature that occurs when connecting 4 ohm speakers will not damage the device in any way. Therefore you can connect 4 ohm speakers without reservations.
I would like to connect the appliance to a record player, is that possible?
In principle, yes.

However, for a record player an additional phono preamplifier is required - these are available from specialist retailers for around €50.
What are the technical requirements for an AV receiver to function with RearStation 4?
The AV receiver must be able to send signals to the rear channels via a pair of cinch terminals. Generally these terminals will be identified as Side, Rear, or Left/Right. It is often also possible to "activate" channels on specific terminals by means of the AV receiver menu.
Can I also connect a 6.1 speaker system to a 7.1 AV Receiver?
No problem.

A 7.1 AV Receiver merely provides the possibility of utilising a 7.1 speaker system; it is not, however, a mandatory necessity.

That is why you can only use a 6.1 speaker system with the 7.1 AV Receiver. In the "Speaker Set-up" menu of the receiver, you frequently only need to specify which of the two channels will be addressed as rear centre.
My subwoofer is humming. What can I do?
This hum can be caused by the connected devices or disruptions in your electricity current. Please do a test to see which it is.

1. Remove the RCA cable from the input on the subwoofer. If the hum is no longer heard, go to point B. Otherwise, follow point A.

A. Attach the net cable of the subwoofer to another electricity outlet (i.e. Kitchen/Bathroom/Bedroom). If the subwoofer still hums, get in contact with our Support team.

Should the hum no longer be there, the disruption was a problem in your power supply, which can, for instance, be caused by dimmers or chargers. To find out where the disruption is, unplug all your devices and work back from there. As soon as the hum is heard, you now know your source of the disruption.

B. In your case, the "ground hum" is responsible for the disruption. Please proceed as follows to discover your source.

  • Disconnect the cable or satellite port from the TV Receiver and check if the hum disappears or not. If it does, you can use a sheath current filter for the cable outlet to prevent this. For example, the sheath current filter AC 9022 ED. If you have a satellite connection, connect the Satellite Receiver to the optical cable playback source - Teufel Optical Digital Cable

  • If this reason can be excluded, separate all devices from the AV Receiver one at a time until the hum stops. The last connected device is then your hum source and should be separated from the others using a galvanic separation filter (found in a retail shop)

  • If this doesn't work, get in contact with us once again so that we can give an individual, helpful response.
Will an active subwoofer only run in 5.1 mode or also in stereo mode?
Thanks to the speaker set-up/bass management integrated in the home cinema receivers/amplifiers, the subwoofer functions in stereo, Dolby Surround and digital mode.

The corresponding setting in the speaker set-up must be adjusted individually for each source for many receivers, however, e.g. for CD playback only front without woofer, and front speakers plus woofer for Dolby Surround video playback.
Why doesn't my active subwoofer switch on automatically?
Some AV Receivers/amplifiers issue the bass signals via the subwoofer pre-amplifier output so quietly that the subwoofer does not start automatically.

To make sure the subwoofer switches on and off correctly in automatic mode, (to be selected on the corresponding switch of the subwoofer, such as "Auto / On / Off"), we recommend turning the level control on the subwoofer to 1/3 or perhaps to 1/2 and increasing the output level for the sub in the receiver's speaker set-up – sometimes up to the maximum (+10 dB or +12 dB). The subwoofer should then work perfectly.

The maximum position of the output level in the speaker set-up of the AV Receiver is obligatory for some of our models (e.g. the Concept S subwoofer).
How do I connect my fully active Teufel system to an AV Receiver?
Although designed to be fully active, the Teufel set is also partially active in conjunction with an AV Receiver.

You can connect it like a standard speaker system: the five satellites via speaker cable to the corresponding speaker outputs front R/L, rear R/L and centre of the AV Receiver/amplifier and the subwoofer from the front R input via a mono-RCA cable to the Sub Out output on the A/V Receiver/amplifier.

Please note:
The auto on/standby switch only responds when the front R input is being used! The subwoofer also receives the full subwoofer signal via this channel.

If the AV Receiver/amplifier has preamplifier outputs for all channels (front R/L, rear R/L, centre and subwoofer), the Teufel set can also be connected via three RCA cable pairs to the subwoofer and the satellites via speaker cables to the subwoofer. However, we recommend using the first version.
What is a ground hum?
The hum (50 Hz) comes from the 220 volt supply network and is caused by current power flows through the protective conductor. These so-called "ground hums" is caused when you connect two devices that are already grounded on the protective conductor (subwoofer) or the antennae cable (AV Receiver) to the subwoofer cable.

Solution:
Separate the direct connection by a grounding filter for the antennae cable that is created for it - for instance, the Teufel modell sheath current filter AC 9022 ED. Alternatively, you can use a galvanic separation filter that is looped into the connection between the subwoofer and AV Receiver.

The hum disappears if the antennae cable is separated from the Receiver/Tuner/TV. First try the grounding filter, otherwise the galvanic separation filter.
Where is the optimal place for the subwoofer of my Lautsprecher Teufel Surround System in a 5.1/6.1/7.1 configuration?
The location of a subwoofer with a recommended cut-off frequency of under/equal to 120 Hz can be freely selected and does not affect the other speakers.

Placement within the straight line between both front satellites is ideal - but not precisely in the corner of the room because certain frequency components could be unpleasantly excessive when played back.
How do I determine the right phase setting of the subwoofer?
By setting the phase, you can affect the point at which the membrane of the subwoofer bass speaker moves to the front. This setting makes it possible to optimally adjust the subwoofer to the satellites.

The membranes of the satellites should move to the front at the same time as the membrane of the subwoofer bass speaker, because all speakers of the system must vibrate in phase for optimal playback. This means that (provided the connection has the correct polarity) all drivers must move in one direction when the three front speakers receive a pulse (towards the outside or towards the inside).

If the subwoofer is in line with the front speakers, its bass speaker should have the same direction of movement (phase) - the controller on the woofer is set to "0". If the subwoofer is not between the front speakers, but is to the side of or even behind the listening location, its phase length will not match that of the front speakers. That is why the phase of the subwoofer must be changed in such cases.

So much for the theory. In practice, this means: Listen to a loud piece of music with heavy basses and ask a second person to change the phase during playback. The correct setting of the phase switch depends on where the subwoofer is positioned in the room. The position where the bass playback (above all the upper bass range) sounds the fullest is the correct position. Have fun trying it out!
What is the use of the on/off automatic switch ("Auto On/Off") of the active subwoofer?
The On/Off switch is a power-saving standby switch. The switch must be set to "On" or "1" to activate the standby. The subwoofer is activated as soon as it receives a strong bass signal. After approx. ten to twenty minutes of no signal, or only after receiving a very weak signal, it automatically switches to the standby function.

Even though the LED is still illuminated, the subwoofer is in standby mode. This function can be easily checked by slowly increasing the volume at the receiver/amplifier. You will hear a quiet popping noise when the subwoofer activates itself as of a certain level.
What happens to the power amplifiers of the subwoofer if I don't connect the satellites?
As soon as the satellites are connected to the subwoofer and not to the AV Receiver/amplifier, the performance of the 6 or 8-channel power amplifier is distributed to the subwoofer and to the satellites.

If the satellites are not connected directly to the subwoofer but to the AV Receiver/amplifier via speaker cable instead, the subwoofer performance will increase somewhat; the power amplifiers for the satellites have no function. This enables the subwoofer and satellites to play even more dynamically than if the subwoofer still had to provide the satellites with performance.

The technical background: The subwoofer has a large transformer with a specific wattage. This performance is either distributed to the five satellites and the subwoofer, or you receive a higher performance only for the subwoofer.
How can I connect an additional active subwoofer?
If your receiver has only one subwoofer output ("Sub Out"), you only need a monocinch cable, which is then connected from the receiver to the "Sub In" of the subwoofer. With two subwoofer outputs, you can order a so-called Y-adapter from the Teufel accessories page, which has a cinch plug on one side and two cinch (RCA) sockets on the other. Connect the plug to the subwoofer "Pre Out" on the AV receiver/amplifier and connect the mono cinch cable to the two subwoofers.

If the cabling method is easier for you, then you can alternatively connect one subwoofer to the other. You will need two mono cinch cables - one to connect the subwoofer "Pre Out" on the AV receiver/amplifier to the left line-in input of the first subwoofer, and the other to connect the left line-out output of the first subwoofer to the left line-in input of the second subwoofer.
What's the deal with the so-called bass traps or bass absorbers?
These are usually cubic wood housings (same MDF material as the speakers) with a bass reflex opening that have no membranes and are tuned to a certain frequency (e.g. 40 Hz as for a subwoofer). The frequency to be co-ordinated can be changed by the length and diametre of the bass reflex channel. If, for example, a room has a room resonance frequency of 28.3 Hz and this frequency is also played back in addition by a speaker/subwoofer, the room will begin to resonate at this frequency. This particular frequency is played back amplified.

This can be imagined as droning or booming, which occurs during heavy bass movie scenes such as explosions or certain types of music (Jazz, pizzicato bass). The bass absorber is then tuned exactly to this frequency so that only the speakers/subwoofer play back this frequency. The resonance frequency from the room, which would amplify this frequency, is swallowed by the bass absorber.

If you would like to damp more than one frequency (a room usually has three different frequencies: ceilings and floors, front and back and left and right, and its multiple), you will have to set up three absorbers accordingly.
How is the wattage of a subwoofer with respect to the sine wave and pulse/music performance?
Mono subwoofer:

The wattage (e.g. "360 W") printed on the rear of the subwoofer near the mains plug designates the ability of the power amplifier "to pull" a maximum power rating in the specified range at the moment of switching on (those 360 watt stated as an example).

Consequently, the wattage must correspond to at least the sine wave output of the amplifier, as this sine wave output must be permanently available which the power pack must provide as well.

The pulse/music performance of the amplifier, on the other hand, can exceed the wattage, because the short pulses are buffered additionally by the capacitors in the power pack and are not achieved solely through the performance of the power pack.

Multi-channel subwoofer:

The wattage for a multi-channel subwoofer can also be below the sine wave output, as the specified sine wave output is not requested from every channel at the same time.

For a 5 x 100 watt sinus power amplifier, for example, each of the five channels is able to implement 100 watt sine. However, not all five channels at the same time! This is also unnecessary, as the same signal is never transmitted across all five channels at the same time, thus requesting the same high sine wave output per channel.

That is why the wattage may be, e.g. 300 watt, even if the sine wave output exhibits 5 x 100 watt (= 500 watt).
What are the volume switches for?
The sound of the speaker always depends on the room where it is located.

The volume of the active subwoofer can be controlled so that you can adapt the relationship between the active bass and treble / mid tones to suit the room.

Use your own senses to judge which settings sound best in your room. This switch is especially useful in stereo mode. On the other hand, multichannel amplifiers often have technologies that adjust the subwoofer volume - so when using a multichannel amplifier the controller should first be set at 0dB.
Which subwoofer cables does Teufel recommend?
Dans la mesure où dans un ensemble home cinéma les caissons de basses actifs sont connectés à la sortie Out du caisson de basses du récepteur AV, un câble supplémentaire pour la connexion des enceintes satellites est nécessaire. Pour les caissons de basses actifs nous proposons deux versions de câble mono RCA NF allant de 2,5m jusque 5m. Du reste, un adaptateur Y est également disponible dans nos accessoires. Le modèle „ 2 x mâles 1 x femelle“ permet un usage complet des entrées Line-In RCA droit et gauche au caisson de basses. Ainsi, la puissance du caisson de basses s’en voit augmentée. Le modèle „1 x mâle 2 x femelles“ permet la connexion de deux caissons de basses. Une sortie caisson de basses Pre-Out du récepteur se trouve en sommes doublée.
What is room resonance frequency?
Room resonance frequency (other terms: room modes, standing waves, resonance frequency) is the frequency at which the vibrations of a voice, a musical instrument or a signal played back over the hi-fi/home cinema system is amplified unnaturally, because the vibrations build up between the walls as well as the floor and ceiling.

It is calculated of the sound velocity divided by 2 and divided by the room length [ 340 m/s: 2 : 6 m = 28.3 Hz (=1/s) ] or, more simply: 170 divided by the room dimension (length, width or height). The greatest distance between two parallel walls is taken as first standard value. For a room of 4 x 6 metres, this would be 6 metres. Strictly speaking, you would have to calculate the room resonance frequency for further parallel walls (for the 4 metres and for the ceiling height).

Overlaying resonances are also possible if the room dimensions are very close to each other. (2.8 metres high, 3 metres wide and 5.6 metres long). The resonance at 2.8 metres is repeated as multiple (times 2) at 5.6 metres length, the resonance of the 3 metres width is close to the resonance of 2.8 metres. It would resonate strongly here at 30 Hz, 56 Hz, 60 Hz and 120/112 Hz.

Phenomena of resonance frequencies:

• For example, a man with a deep voice speaks in a very small room (2 by 2 metres, 85 Hz). The voice appears to have more emphasis than in another room or out of doors. As soon as a woman speaks, the voice will sound just the same as in another room.

• The voice of a woman or that of a small child will cause glass to shatter. The voice strikes exactly the tone that corresponds to the resonant frequency of the glass. The glass resonates so strongly that it shatters (refer to the movie "The Tin Drum").

• A group of soldiers march across a bridge in cadence. The equal movement causes the bridge to vibrate so much that it collapses. That is why no one marches across bridges in cadence.
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