PSI Audio AVAA C20 Arctic White

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Active Bass Absorber

Absorbs room modes between 15 and 150 Hz
Reverberation time is significantly reduced in this frequency range
Effectiveness corresponds to an absorber of 25 times the size
No calibration or adjustment to the room is required
Mobile and flexible solution
Dimensions (W x H x D): 424 x 509 x 300 mm
Weight: 13 kg
Colour: Polar White

30-Day Money-Back Guarantee

3-Year Thomann Warranty

Available since March 2018
Item number 433110
Sales Unit 1 piece(s)
Material N/A
Colour Black
Dimensions per piece in mm 424 x 509 x 300

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PSI Audio AVAA C20 Arctic White

PSI Audio AVAA C20 Arctic White Active Bass Absorber * Absorbs room modes between 15 and 150 Hz * Reverberation time is ...

3.090 €

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PSI Audio AVAA C20 Black

PSI Audio AVAA C20 Black Active Bass Absorber * Absorbs room modes between 15 and 150 Hz * Reverberation time is signifi...

2.799 €

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B-Stock available from 2.858 €

3.090 €

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in Bass Traps

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PSI Audio AVAA C20 Arctic White B-Stock
May have slight traces of use

2.858 €

Put bass problems to bed

The PSI Audio AVAA C20 is an excellent solution for combating room modes at frequencies below 100Hz. Thanks to its active electronics and its innovative acoustic concept, it offers producers a more accurate, analytical sound image by reducing the reverberation time of low frequencies – with an effect comparable to that of a passive bass absorber 25 times its size. Importantly, the AVAA C20 doesn't generate counter-sound (anti-noise) in the room; neither does it need any fine-grade calibrating or necessitate costly structural modifications to the space itself. This makes the AVAA C20 much more flexible than conventional bass absorption solutions, allowing it to be integrated into existing setups far more easily.

PSI Audio AVAA C20 Artic White, bass absorber

How to tame that bass

The PSI Audio AVAA C20 is an Active Velocity Absorber, to give it its full name. What this means, put simply, is that it converts the maximum sound pressure that builds up at boundary surfaces into particle velocity using an acoustic resistance – a finely perforated metal plate. An integrated microphone at the boundary measures these velocity data and sends them to the active electronics: A loudspeaker located behind the acoustic resistance then compensates for the particle velocity by emitting sound waves in opposite phase into a heavily damped acoustic chamber. Despite having a surface area of just 0.2m², the AVAA C20 achieves an equivalent absorption area of 0.6 to 4m², depending on the source's frequency and the device's position in the room.

PSI Audio AVAA C20 Arctic White bass absorber, rear view with controls

Enhanced acoustics everywhere

Developed in collaboration with two Swiss universities, the PSI Audio AVAA C20 improves acoustics in professional settings like recording studios and broadcast vans, but also residential and commercial spaces. It delivers a noticeable improvement in sound quality by reducing room modes, which cause frequency build-ups at walls and standing waves within the room, leading to an undefined and imbalanced sound image. Thanks to its compact size and broadband characteristics, the AVAA C20 is also significantly more flexible, cost-effective, and space-saving than conventional passive absorbers, which must be precisely tuned to specific problematic frequency ranges to be effective.

About PSI Audio

PSI Audio, a brand under Relec SA, is based in Yverdon-les-Bains, Switzerland. The company was originally founded in 1977 by Alain Roux as Roux Electroacoustique, specialising in Hi-Fi speaker development. In 1988, the company was restructured as Relec SA, expanding into PA and studio markets while producing both proprietary models and OEM products for renowned brands like Studer (1992–2003). The PSI Audio brand launched in 2004, offering premium studio monitors for professional users. These products are known for their fully analogue circuit designs and meticulous Swiss craftsmanship, ensuring exceptional performance and reliability for audio professionals.

It all depends on where you put it

For the PSI Audio AVAA C20 to function at its best, its placement within the room is critical. Ideally, this active bass absorber should be positioned up against a wall – or even better, in a corner of the room. Still, it's important to ensure adequate air circulation behind the unit to prevent the integrated electronics from overheating. The AVAA C20 is effective at reducing room modes between 15 and 150Hz within a radius of 1 to 1.5m around its placement: For this reason, anyone setting up their recording space should avoid placing large reflective objects in its immediate vicinity, as they can reduce its effectiveness. Ideally, the walls near the unit should be smooth and uninterrupted.

10 Customer ratings

5 8 Customers 4 1 Customer 3 0 Customers 2 1 Customer 1 0 Customers

4.6 / 5

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9 Reviews

A must for your dedicated listening room

Erospa 01.12.2022

How much have you spent on putting together your ideal audio playback system? How much have you spent maki g sure that your room isn’t singing along and undermining your dream system? If the answer to the last question is minimal or nothing then time for a rethink. Bass frequencies are incredibly long and in most normal rooms produce a use room modes which undermine your valuable system. This little device does what passive room treatment for bass frequencies can’t. In my small 4.5m x 3.5 m room is was about to sell off all of my HIFi gear befor trying the PSI AVAA. I came across them on the Thomann website and I am very glad that I did. I now have three in my room and the effect is staggering. The overblown and boomy bass has gone, to be replaced by deep , tuneful bass that complements rather than disrupts the rest of the performance. And with the 30 day return guarantee offered by Thomann you can try the AVAA in your own listening room with minimums risk, just make sure you order, for the sake of symmetry, a minimum of two ABAA’s!

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Perfect for people who does not have much room for bass traps

CChannel 22.08.2022

The AVAA is highly effective and very easy to use. Unlike traditional bass traps, the AVAA only absorbs frequency within the range of 15–150Hz, so it won’t affect the mids and highs.

It is also prefect for small rooms as it takes a lot less space to gives the same results compare to passive absorbers.

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Active bass trap

Rain Tan 22.08.2023

It’s works! I didn’t try other types of bass trap so can’t do any comparison.
Pro: require little space
Con: can’t believe I spent this much

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Schluß mit unsauberem wummernden Bass

Bobby 88 30.01.2020

Habe zwei PSI Audio AVAA C20 Arctic White bei Thomann gekauft. Erstmal Dank für die ultraschnelle Lieferung. Diese aktiven Bassabsorber vollbringen erstaunliches in meinem Hörraum. Der
Bass klingt jetzt wesentlich präziser, impulsschneller und straffer, kein Wummern mehr beim Bass. Man kann jetzt auch Details im Bass wahrnehmen die vorher nicht hörbar waren. Ich habe mit meinem
Messsystem festgestellt das der Bass einen im Durchschnitt etwa 4 1/2 bis 5 Dezibel lineareren Frequenzgang aufweist. Bei einzelnen
Frequenzen beträgt die Korrektur sogar bis zu 8 1/2 Dezibel.
Außerdem haben sich die Nachhallzeiten unterhalb von 150 Hz deutlich verkürzt, unterhalb von 65 Hz sogar mehr als halbiert.
Gemessen wurde alles praxisgerecht am Hörplatz in Kopfhöhe.
Die beiden PSI Audio AVAA C20 stehen bei mir links und rechts von den Lautsprechern in den Raumecken. Habe beide in Arctic White
gekauft und sie haben eine sehr elegante Erscheinung die keinesfalls
stört.
Fazit: Wer bereits eine hochklassige Stereoanlage besitzt sollte sich
diese PSI Audio AVAA C20 gönnen. Erst damit kommt man wirklich in
den klanglichen Olymp.

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PSI Audio AVAA C20 Arctic White

Active Bass Absorber