PSI AUDIO · ROOM ACOUSTICS

Active bass control.

Bass that lingers can make notes run together and music harder to follow. Compare PSI Audio AVAA C214 and C225, which absorb low-frequency energy in the room. Room measurements help establish whether active absorption suits the problem and which model to consider.

AVAA C214

For bass notes that linger in the room. C214 absorbs low-frequency energy from 15 to 160 Hz in a slim cabinet, without an audio connection.

Working range: 15 Hz to 160 Hz
Connection: Mains power; no music-signal cable

$6,199

Price per unit, including GST.5-year standard Australian warranty1 extra year after product registrationUsually arrives within 2 to 3 business days, subject to order confirmation.

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PSI Audio AVAA C225

An active bass absorber for powerful home cinema and high-level listening. C225 works from 12 to 130 Hz, with a larger cabinet and greater operating headroom than C214.

Working range: 12 to 130 Hz
Connection: Mains power; no music-signal cable

$11,999

Price per unit, including GST.5-year standard Australian warranty1 extra year after product registrationOrder by enquiry. Current stock and delivery timing are confirmed before payment.

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Ask us which finishes, accessories and ordering options are available for the model you are considering.

See how bass energy changes over time.

In this Melbourne room, we compared the combined left and right speakers before and after AVAA C214. These spectrograms show frequency, level and time together. Look at how far the low-frequency trails extend as the sound fades.

REW combined left and right spectrogram before AVAA C214 treatment showing low-frequency energy over time — Before: combined L+R spectrogram with longer visible low-frequency tails.

REW combined left and right spectrogram after AVAA C214 treatment showing low-frequency energy over time — After: combined L+R spectrogram under the comparison condition.

The measured low-frequency tails became shorter with C214 operating. The full case includes the test conditions, graph explanations and remaining issues.

One room and one comparison. Results do not predict the outcome in another system.

Read the measured case study

Different ways of working with bass.

Subwoofers: Add a low-frequency sound source. Placement and integration affect how it combines with your speakers and room.
EQ: Adjusts the playback signal, changing the level of selected frequencies.
Active absorption: Uses a powered acoustic system to absorb low-frequency energy in the room.
Passive treatment: Uses materials or resonant structures to absorb sound energy. The size, design and placement determine which frequencies it affects.

These approaches can work together. The useful combination depends on the problem in your room.

When active absorption is worth exploring.

If some bass notes linger and blur what follows, active absorption may be relevant. A deep dip or a change in bass as you move can have a different cause. AVAA does not reproduce missing bass or replace every type of acoustic treatment.

Hear and measure it at home.

A home demonstration lets you explore C214 in your own room. You do not need to purchase a room assessment first.

Explore a home demonstration

Still finding the cause?

An in-home assessment looks more broadly at your existing system, with listening, measurement, practical checks and a detailed report.

Explore in-home measurement