- Home cinema speaker set with Ultima 20 hi-fi bookshelf speakers
- Powerful home cinema and music playback from a compact, easily placed system
- The Ultima 20: Bestselling 2-way bookshelf speakers used as front and rear speakers
- Centre speaker employs two midrange drivers in a D'Appolito Array
- Powerful 150 watt downfire subwoofer with 250 mm woofer
- Suitable for use with all standard A/V receivers
Overview of our technologies
Quality you can trust: The Ultima 20 are among the best bookshelf speakers in their price class. Our developers in Berlin made sure this stereo pair has the best-possible sound thanks to the following:
- Large 25 mm tweeters for a silky, soft treble
- Large 165 mm midrange drivers with phase plug produce balanced, evenly dispersed sound
- Trumpet bass reflex vents eliminate wind noise and chuffing for deep, clean bass
- Klippel-optimized drivers ensure an incredibly balanced frequency response
Each driver has been optimized by first-class Klippel technology – a first for speakers in this price class. This precision calibration technology allows the Ultima 20 to produce linear and balanced playback. Bass reflex ports with trumpet vents enhance the bass without wind noise. Well-braced wooden enclosures minimize vibrations resulting in a very clean sound.
The Ultima 20 Mk2 scores points on style with harmoniously rounded edges, compact dimensions, and cleverly accented drivers – a self-confident look sure to enhance any interior. The speakers can be seamlessly integrated into any home, fitting easily on either a shelf, wall, or floor stand.
The US 2110/1 SW is a powerful active subwoofer
Weighing in at over 20 kg with a 45 litre volume, the US 2110/1 has what it takes to deliver extremely powerful and deep bass playback. The integrated 125 watt amplifier drives a large 250 mm woofer down to 38 Hz (-3 dB) for rich, punchy and undistorted bass with music, home cinema and gaming.
Sleek, high-gloss elements, rounded corners and a slender shape allows the US 2110/1 to blend in to any interior. Requiring a minimum of space, it’s easy to place.
The downward-firing bass reflex port and angled mains plug make it easy to place the speaker along a wall. Four resonance damping feet give the system a stable position and decouple vibrations from the floor.
The back panel includes a mono cinch input for connecting to a home cinema AV receiver as well as volume control and slide switch for regulating phase.
An auto level switch with three stages makes it easy to optimally adjust to the output level from various source devices, allowing the subwoofer to seamlessly switch between devices. An integrated limiter protects the system from overload and distortion.
- Shelf Speaker UL 20 Mk2
- Center speaker UL 40 C Mk2 (2017)
- Mono-Subwoofer US 2110/1 SW
- power cable
|Continuous power handling (IEC - Long Term)||50 Watt|
|Peak power capacity (IEC - Short Term)||80 Watt|
|Sensitivity (2.83 V / 1 m)||84 dB|
|Minimum amplifier output power recommended||30 Watt|
|Maximum sound pressure level||104 dB/1m|
|Impedance||4 - 8 Ohm|
|Frequency range from/to||70 - 20000 Hz|
|Crossover frequency internal switch||2600 Hz|
|Crossover frequency to Woofer (recommended)||80 Hz|
|Tweeter (number per enclosure)||1|
|Tweeter (diameter)||25.00 mm|
|Bass/Midrange driver (number per enclosure)||1|
|Bass/Midrange driver (diameter)||165.00 mm|
|Bass/Midrange driver (material)||Kevlar/fiberglass, chrome-coloured phase plug|
|Enclosure type||Bass reflex|
|Equalisation openings (pos.)||backside|
|Removable front cover||Yes|
|Net internal volume||10 Litres|
|Diameter of the stand screw threads||6.00 mm|
|Terminal clamps||Screw terminals, gold plated|
|Suitable for banana plug||Yes|
|Maximum cable diameter||4.00 mm|
|Suitable for AV receiver||Yes|
|Continuous power handling (IEC - Long Term) [Watt]||100|
|Peak power capacity (IEC - Short Term) [Watt]||150|
|Sensitivity (2.83 V / 1 m) [dB]||89|
|Maximum sound pressure level [dB/1m]||107|
|Impedance [Ohm]||4 - 8 Ohm|
|Frequency range from/to [Hz]||90 - 20000 Hz|
|Tweeter (number per enclosure)||1|
|Tweeter (diameter) [mm]||25|
|Bass/Midrange driver (number per enclosure)||2|
|Bass/Midrange driver (diameter) [mm]||110|
|Bass/Midrange driver (material)||Kevlar/Fiberglass|
|Removable front cover||Yes|
|Net internal volume [Litres]||7|
|Wall mounting brackets||Yes|
|Keyhole plate mounted||Yes|
|Screw hole diameter [mm]||6|
|Terminal clamps||Gold-plated screw terminals|
|Suitable for banana plug||Yes|
|Maximum cable diameter [mm]||4|
|Suitable for AV receiver||Yes|
Teufel's legendary subwoofer expertise give you a 40 Hz (-3 dB) low end for full-bodied and accurate bass. Music, home theater and games - everything sounds deep and rich.
Rounded edges, slim design and a glossy finish make this subwoofer discrete and elegant. Minimal space requirements mean it can be placed anywhere in your interior.
The down-firing bass reflex principle and the angled, recessed plug allow the subwoofer to be position directly on a wall; four resonance damping feet ensure secure footing and decoupling from the floor.
The RCA connectors for a home theater AV receiver are on the rear, along with the volume control and a phase slide switch.
A three-level auto-switch ensures optimum output levels on the various devices. This ensures the subwoofer is always perfectly in sync with the rest of the system. An internal limiter protects against overloading and distortion.
The U.S. 2110/1 SW is only available with Teufel speaker sets.
|Sensitivity (2.83 V / 1 m)||88 dB|
|Maximum sound pressure level||114 dB/1m|
|Frequency range from/to||40 - 250 Hz|
|Woofer (number per enclosure)||1|
|Woofer (diameter)||250.00 mm|
|Woofer (material)||Cellulose, coated|
|Miscellaneous||Klippel® measured woofer with long stroke action|
|Enclosure type||Bass reflex, DPU|
|Enclosure surface||High gloss (front), matte foil (corpus)|
|Equalisation openings (pos.)||Bottom|
|Net internal volume||45 Litres|
|Diameter of the stand screw threads||6.00 mm|
*Bass reflex channel with DPU technology prevents flow noise
*Stable MDF enclosure with glossy accents
|Suitable for AV receiver||Yes|
|Miscellaneous||Rückversetzte Endstufe für Aufstellung direkt an der Wand|
|Lowest frequency (-3 dB)||38 Hz|
|Input gain adjustment||Yes|
|Phase control||0 / 180 °|
|Amplifier technology||Class D|
|Power output capacity impulse (peak) Bass||150 W|
|Power output capacity sinus (RMS) Bass||125 W|
|Miscellaneous||Potent power supply|
|Power supply voltage||230 volts|
|Standby-Power consumption||0.50 watt|
|Mains cable - IEC connector (non-heating device)||Yes|
|Storage for settings when disconnected||Yes|
|Miscellaneous||Complies with CE, RoHS and REACH requirements|
|Miscellaneous||Resonance damping rubber stand feet included|
Downloads & support
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.
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.
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.
• 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.
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.
• 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.
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).
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.
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.
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!
Tauschen Sie die neben dem Netzschalter befindliche Sicherung aus. Falls die Power-Diode danach nicht leuchtet, wenden Sie sich bitte an unseren Service. Falls die Power-Diode danach leuchtet, aber kein Ton zu vernehmen ist, verfahren Sie bitte wie unter Punkt 2. beschrieben.
2. Falls die Power-Diode leuchtet:
Drehen Sie den Pegelregler Level am Subwoofer auf »Minimum«, ziehen das Subwoofer-Cinchkabel am Verstärker ab, drehen Level vorsichtig hoch und berühren den Cinch-Heißleiter des Cinch-Kabels (innen) mit dem Finger. Ist nun ein Brummen oder Knacken zu hören, liegt der Fehler beim Receiver oder seinen Einstellungen. Bleibt der Subwoofer stumm, wenden Sie sich bitte an unseren Service.
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.
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.
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).
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.
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.
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.
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.
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!
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.
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.
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.
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.
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).
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.
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.