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  • Varion "2.1-Set"
  • Varion "2.1-Set"
  • Varion "2.1-Set"
  • Varion "2.1-Set"
  • Varion "2.1-Set"
  • Varion "2.1-Set"
  • Varion "2.1-Set"
  • Varion "2.1-Set"
  • Varion "2.1-Set"
  • Varion "2.1-Set"
  • Varion "2.1-Set"
  • Varion "2.1-Set"

Varion "2.1-Set"

Pure understatement
Super slim 2.1 home cinema set for easily integrating into any interior
(1)
  • 8 week trial
  • Up to 12 year guarantee
  • Free & easy returns

Highlights

Why we love this product
The Varion is among the most flexible home cinema sets on the market today. Mount the speakers directly onto your television, on table or speaker stands or directly to the wall. In spite of its elegant, easily placed form, the Varion delivers gripping, realistic sound with movies, music and games.
Key advantages at a glance
  • Super slim 2.1 home cinema set for easily integrating into any interior
  • The speakers can be easily wall mounted, placed on table stands, speaker stands or TV mount
  • 5 identical 2-way speakers with 7 drivers each produce realistic, high-performance sound
  • Full, rich payback with excellent speech intelligibility even at low volumes
  • Very slender but powerful 100 watt subwoofer for barely-there room placement
  • Available as a complete system or Blu-ray complete system
  • Suitable for use with all standard AV receivers
What others are saying about us
(5 of 5 from 1 Reviews)
All ratings
Features

Overview of our technologies

Downfire
Varion "2.1-Set"

The smaller Varion Set offers all the same clever setup options as its larger 5.1 version. A separately available TV mount especially designed for the Varion makes it possible to attach the speakers directly to your television. They can also be easily wall mounted or placed on table stands. No other home cinema set presents so many options.

The Varion can be placed anywhere
Lowboard, stands, wall or television

An optional high-end TV and loudspeaker bracket (VESA compatible) makes it possible to wall mount the satellites along with your TV as a single unit. Integrated keyhole brackets allow the satellite speakers to be directly wall mounted as well. In addition, the speakers can be placed on stands or on a lowboard, making the Varion Complete "2.1 Set" one of the most flexible home cinema systems on the market today.

Heimkino Microlautsprecher Varion
Inconspicuous setup, imposing sound

In spite of slender dimensions measuring just 7 cm across, the Varion offers everything you would expect of a full-fledged surround sound system.

  • - A 2-way system: The incoming audio signal is divided and sent to the drivers best designed to play it back.
  • - Seven drivers per speaker: Each speakers produces a full, rich and power-packed sound with excellent speech intelligibility, even at low volumes.
  • - High excursion drivers: Powerful and agile driver units produce high distortion-free levels.
  • - 19 mm tweeter. A large, centrally positioned tweeter reproduces voices and effects with a silk, soft sound that is never aggressive or shrill.
  • - D’Appolito Array: Centering the tweeter between three midrange drivers on each side results in a better, more even dispersion of the treble range.
  • - Broad sound dispersion: The wide angle of sound dispersion makes it possible for everyone in the room to enjoy thrilling sound.

All of the Varion speakers are identically constructed, an essential requirement for a truly harmonious and realistic surround sound. Experience helicopters or thunder pass overhead without any gaps in the well structured soundstage.

Neutral tuning accompanied by deep but realistic and well-integrated bass is perfectly suited for movie sound tracks but also makes the most out of gaming sound and music.

Teufel bass: Powerful, punchy and stylishly packaged

This subwoofer is the worthy companion of the speakers. It’s compact, easy-placed form belies truly astonishing power. Equipped with two bass reflex vents, the sub delivers a respectable 43 Hz low end (-3 dB). 106 dB maximum sound pressure levels pushes the bass into the room with plenty of grip and power.

The subwoofer is equipped with an automatic on/off switch as well as volume and phase regulators. This makes it possible to adjust the sound to suit one’s room and personal tastes. Rubberized feet are naturally included.

Home cinema micro speaker Consono 25 Mk3 SW Subwoofer

Included components

  • Satellite Speaker CS 75 FCR (pcs.)
  • Mono-Subwoofer US 2106/1 SW

Specifications

Satellite Speaker CS 75 FCR (pcs.)
Satellite Speaker CS 75 FCR (pcs.)
Slender 2-way loudspeaker for flexible setup in any living room. Enjoy powerful, balanced sound and maximum speech intelligibility.
Satellite Speaker CS 75 FCR (pcs.)
Speaker
Acoustic principle 2-Way-System
Enclosure type Closed
Continuous power handling (IEC - Long Term) 80 Watt
Peak power capacity (IEC - Short Term) 160 Watt
Sensitivity (2.83 V / 1 m) 89 dB
Minimum amplifier output power recommended 20 Watt
Maximum sound pressure level 105 dB/1m
Impedance 4 - 8 Ohm
Frequency range from/to 200 - 20000 Hz
Crossover frequency internal switch 4400 Hz
Crossover frequency to Woofer (recommended) 150 - 200 Hz
Miscellaneous Requires little power to achieve high levels
Tweeter (number per enclosure) 1
Tweeter (diameter) 19,00 mm
Tweeter (material) Fabric
Midrange driver (number per enclosure) 6
Midrange driver (diameter) 55,00 mm
Midrange driver (material) Coated cellulose
Miscellaneous Drivers with high efficiency rating
Enclosure material Structural synthetic
Enclosure surface Matte lacquer
Diameter of the stand screw threads 6,00 mm
Keyhole plate mounted Yes
Miscellaneous With resonance-damping thick enclosure walls
Terminal clamps Yes
Maximum cable diameter 2,50 mm
Suitable for AV receiver Yes
Dimensions
Depth 6,50 cm
Width 7,00 cm
Height 50,20 cm
Weight 1,20 kg
Mono-Subwoofer US 2106/1 SW
Mono-Subwoofer US 2106/1 SW
The subwoofer US 2106/1 SW knows how to makes its present felt, but it can also show amazing restraint and blend into a supporting role. A 43 Hz low end frequency limit (-3 dB) and a maximum sound level of 106 dB creates an impressive bass experience, yet the enclosure takes up only a small amount of floor space  - just 28 x 28 cm.
Mono-Subwoofer US 2106/1 SW
Speaker
Acoustic principle 1-Way-System
Downfire Yes
Enclosure type Bass reflex
Sensitivity (2.83 V / 1 m) 89 dB
Maximum sound pressure level 106 dB/1m
Impedance 4 - 8 Ohm Ohm
Frequency range from/to 43 - 200 Hz Hz
Woofer (number per enclosure) 1
Woofer (diameter) 160,00 mm
Woofer (material) Cellulose, coated
Miscellaneous Optimised with Klippel®-measurement method
Enclosure material MDF
Enclosure surface Foil / high-gloss lacquer
Equalisation openings 2
Equalisation openings (pos.) bottom
Removable front cover Yes
Integrated stand Yes
Diameter of the stand screw threads 6,00 mm
Miscellaneous Robust MDF housing with internal reinforcements
Suitable for AV receiver Yes
Connections
Cinch input 1
Electronics
Lowest frequency (-3 dB) 43 Hz
Bass boost/EQ Yes
Input gain adjustment Yes
Level control Yes
Phase control Yes
Amplifier technology Class-D
Amplifier configuration 1.0
Amplifier channels 1
Power output capacity impulse (peak) Bass 100 W
Power output capacity sinus (RMS) Bass 80 W
Power supply voltage 230 Volt volts
Standby-Function Yes
Standby-Power consumption 0,40 watt
Maximum power consumption 100 watt
Mains lead fixed Yes
Safety class 2
Storage for settings when disconnected Yes
Automatic on/off Yes
Miscellaneous High-performance adapter for stable power supply
Dimensions
Depth 28,00 cm
Width 28,00 cm
Height 38,50 cm
Weight 7,80 kg
Miscellaneous Absorber pads included in delivery

Expert reviews

Varion "2.1-Set" review of lite-magazin
Varion "2.1-Set" review of lite-magazin
"Teufel once again pulled a series from up its sleeve capable of transforming the occasional movie watcher to a home cinema enthusiast within a short period of time."
lite-magazin 28.06.2016
“It couldn’t be more complete”

"From zero to 60: With the Varion range, Teufel once again pulled a series from up its sleeve capable of transforming the occasional movie watcher to a home cinema enthusiast within a short period of time. With the Blu-ray complete system, the Varion Impaq Streaming, as the flagship combination, there’s a bundle that not only offers fun with movies, but also an easy introduction to the exciting world of multi-room streaming. Sound good? It is! But that’s not all…”

“Since we already tested the Impaq 8000 Blu-ray receiver with the Cubycon ensemble, we got our hands on the same Blu-ray action film we used then, “John Wick” [...].”

"… when it comes to movie sound, it’s not just about making a lot of noise, but rather the creation of a realistic soundstage.”

"This is unquestionably what we experience with the Varion ensemble [...] The short bits of dialogue are crystal clear and the individual sonic details are even more precisely placed. For example, a gun hit out of a hand in a somewhat quiet setting can be acoustically localized exactly there where one would expect it based on the path of flight. Very precise work from both the contract killer on the screen as from the Teufel development team.”

"The oft-employed concept of listening pleasure is not adequate to the agile and passionate way with which the Varion speakers go about their business. All about us, the wheels seem to screech, paint is being scratched and shots fired. Muffled crashes are intermixed with grating collisions that are always precisely embedded in the voluminous soundstage. At the very latest, it becomes clear with the onset of rain at the showdown that the slender Varion speakers have no problem simulating a storm and that only a sprinkler system is missing in order to complete the illusion.”

“When it comes to music, the Varion naturally also shows what it’s made of […].”

"Above all, the 3-dimensional presentation is immediately apparent. In spite of the fact that the speakers are placed relatively close together, the front speakers open up a broad stage right away and supply [...] a great deal of space for the sound to develop.”

Conclusion:


"Versatile, attractive and talented [...]. Teufel sets a high standard with these diverse Varion combinations and succeeds in applying merciless pressure on the competition.”

Note: This test report refers to the Varion Impaq.

Translated from the original German.



You can read the full test review (in German) at www.lite-magazin.de
Varion "2.1-Set" review of Area DVD
Varion "2.1-Set" review of Area DVD
"It’s barely possible to fault the sound produced by the slender speakers."
Area DVD 29.06.2016
Music: "The Sun Always Shines on TV“

"The voices separated themselves well from the centre speaker and had clear contours. Once the song really got going, the clear, well-defined sound was impressive. The Varion set doesn’t produce a cheap “fun sound,” but rather plays in a manner that is serious and complete. The treble range has an impressive 3-dimensionality, comes across as truly free and transparent and is well-integrated with the midrange. The separation of voices and instruments also hardly offer any points for criticism. The synthesizer, the drums as well as the electric guitars are charismatically presented. Morten’s voice is successfully emphasized without pushing the instruments into the background. The US 2106/ delivers a precise and credible bass that isn’t artificially "pumped up.“

"The focus on the vocal elements is successfully achieved in a masterful manner and yet the instrumental sections are not subordinated. The spatial depth is convincing, the processing of details as well as the definition is excellent for such a set.”

Film: "Batman, The Dark Knight“ in Dolby TrueHD

"The shots in the bank’s spacious service area are very forceful, the echoes, conditioned by their environment, are convincingly produced. The opening of the door to the vault and the use of the special drill on the massive vault door are wonderfully accentuated.”

"The front-surround transitions are cleanly balanced, a very good 3-dimensional expansiveness and a precise localization of small as well as larger effects and effect combinations confirmed the following for us: The Varion 5.1 set can be recommended for challenging tasks like the highly differentiated playback of movie sound at high volumes.”

“Even in movie sequences in which suspense is built up but in which larger effects are missing, the test ensemble maintained a sensitive, atmospheric and well executed soundstage.”

2.1 Mode: "California Dreamin‘“ by Diana Krall:

"And we’ve concluded that the collaboration with the US 2016/1 works very well, even in 2.1 mode. We liked the well-rounded and at the same time clear and direct soundstage. The resolution is immaculate for such a set […].“

"It’s surprising how good the voices separated from the speakers and distributed themselves in the listening room. We really liked the Varion speakers’ and the active subwoofer’s free, unforced playback.”

Conclusion:

"Chic and powerful loudspeakers with flexible placement options, perfect for the present day. It’s barely possible to fault the sound produced by the slender speakers. With very good definition, excellent speech intelligibility and flawless power handling, it’s possible to enjoy music and movies even at high volumes at an astonishingly dynamic and cultivated level. The exceptionally good quality is not only evident in multi-channel playback, used as a 2.1 system, the presentation of stereo material is always comprehensive. That the Varion is offered in many sets, including complete, plug-&-play bundles, is to be praised as this makes it possible for everyone to find the perfect system. From a 2.1 set to 5.1 streaming ensembles with the Raumfeld Connector and Impaq Blu-ray receiver, everything is on offer. The prices are completely reasonable […].“

Note: The test report corresponds to the Varion 5.1 set.


Translation from the original German.

You can read the full test review (in German) at www.areadvd.de
Varion "2.1-Set" review of lowbeats.de
Varion "2.1-Set" review of lowbeats.de
"...extremely lively and complex"
lowbeats.de 28.06.2016
Television:

"The TV presenter Jens Riwa was perfectly understandable, and even documentaries with only limited Hi-Fi sound sounded extremely lively and complex."

Musik:

"It revealed fine details in recordings and reproduced the voice of Metallica frontman James Hetfield with just the right amount of grain. The Teufel set also had another positive feature when playing the Metallica tracks: the levels are really well balanced."

Conclusion:

"We didn't find any real flaws in the Teufel Varion."

"They were created to improve the quality of television sound for a good price. This is really impressive. The bright sound of the set is not ideal for classical music, but is absolutely ideal for the probable range of use. Thanks to its design, the system is also good for use not only in living rooms and bedrooms, but also in shops. The variability (2.1 or 5.1) is just as great as the practical and robust design. A range of matching accessories makes the Varion package even more flexible and attractive."

See full review at lowbeats.de/test-teufel-varion-das-fast-unsichtbare-5-1-set/2/
How our customers rated this product:

Downloads & support

Help regarding this product
Which speaker cables does Teufel recommend?
For smaller sets up to Theater 1, we recommend using the 2.5 mm² Teufel speaker cable for optimal sound quality if the required length does not exceed 15 metres.

For Theater 2 and larger systems, we recommend the Teufel cable with 4 mm² cross-section for the front/centre speakers, and the 2.5 mm² cable up to a length of 15 metres for the effect speakers.

Choose a higher cross-section for even greater lengths.
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.
Is it possible to combine speaker cables with different cross-sections?
To supplement missing cable lengths you can use speaker cables of differing thicknesses without acoustical differences - provided there are no extreme differences in the cross-sections.
Should I rather choose a fully active or a partially active speaker set?
It is compulsory to connect partially active systems to an AV Receiver. This supplies the five to seven satellite speakers with the necessary power. Only the subwoofer works additionally with its own amplifier. The investment in a new system is higher because of the AV Receiver, but the solution is also much more flexible. After all, you can connect several signal sources, such as a TV, satellite receiver, PC, game console and MP3 player to an AV Receiver at the same time.

Fully active set do not necessarily need an AV Receiver. The five to seven satellite speakers here are supplied with power by the amplifiers which are installed in the subwoofer in addition to the subwoofer power amplifier. This saves you the costs of a receiver, but it is usually only possible to connect one source to our fully active subwoofer.

Exceptions here are the Concept E2, the Concept E Magnum Digital, the Motiv 5 Digital, the Concept F, the LT2+R and the Concept S+R.

Naturally you can also equip the fully active systems with an AV Receiver at a later point. The connection is then equal to the partially active sets.
Can I set up the set in a different way to that described?
The recommended set-up information below represents the best possible arrangement for perfect multichannel playback in your home. Your available space, your partner or your furniture may not always allow you to arrange the speakers in the ideal manner. Try to meet as many of the requirements as possible.

Modern AV Receivers offer numerous options for compensating electronically for any compromises in the set up. Generally speaking, the following rule always applies: you can always use our recommendations as a basis for experimenting with what works best for you, acoustically and optically. Let your ears (and eyes) decide!
Do I need the same cable length for all speakers?
In our experience, there is no acoustical difference for different cable lengths for lengths up to 15 metres.
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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