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CoreStation

Secret Service
Ultra-compact, plug-and-play 5.1 A/V receiver with high-end electronic components
€ 699.99
incl. VAT
Color: black
Ready for shipping within one work day  
 € 9.99 Shipment
  • 8 week right of return
  • Free & easy returns
  • Directly from manufacturer
Teufel
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Highlights

Why we love this product
The CoreStation is a compact AV receiver that offers powerful performance, easy operation, plenty of features plus the ability to make itself completely inconspicuous in your living room.
Electronics CoreStation
Key advantages at a glance
  • Ultra-compact, plug-and-play 5.1 A/V receiver with high-end electronic components
  • 4 HDMI inputs (including HDMI CEC) with 3D support + digital and analog inputs
  • 360-Watt class-D amplifier from Texas Instruments for true-to-source playback
  • Transmits to Subwoofer Wireless Receiver for cable-free control of your sub
  • Bluetooth 4.0 with aptX codec for Hi-Fi wireless music playback
  • Easily placed on furniture or behind television units
  • Fan-free construction for noiseless operation
Features

Overview of our technologies

Bluetooth apt-X
plug & play
FM Radio
PC Gaming
HDMI 3D
Dolby
dts Digital Entertainment
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.

Included components

  • CoreStation
  • power cable
  • Remote Control for Corestation

Technical Data

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
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 [W] 100
Power output capacity sinus (RMS) Satellite [W] 80
Performance measured by (Ohm) 4
Miscellaneous 30 Watt/Rear
Power supply voltage [volts] 230 Volt
Standby-Function Yes
Standby-Power consumption [watt] .4
Maximum power consumption [watt] 500
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
Radio remote control Yes
Materials Aluminium
Presets Yes
Dimensions
Depth [cm] 24
Width [cm] 30.8
Height [cm] 6.3
Weight [kg] 3.4

Accessories

Accessories and bundle packages are not currently available for this product.

Downloads & support

Help regarding this product
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.
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.
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