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PSI AUDIO AVAA C20 Active bass trap AVAA C20 active bass trap! As new in original box, all packing, unmarked all round, couple of light marks in the black surface on the bottom, hardly noticeable. Part of a collection of gear I am clearing for an old client who has to downsize his audio in a big way. Purchased around mid 2022, has sat in the box for the last 18 months, I have a couple of these C20 on hand. Simple to use, plug in, place it in the area where your room modes are and it will flatten out the low end very well. PSI Audio is a Swedish company that specialises in active bass control
Is A$3,900 close enough to new pricing that you’d rather just buy new, or is the like_new condition worth paying for? Compared with current new listings around A$4,900–A$5,000 and a recent second-hand ask of about A$2,850, this sits on the firm side of fair but not crazy; it’s more premium used than bargain territory.
That said, this is a genuinely useful room-control tool: the AVAA C20 is well regarded because it tackles low-frequency room modes without calibration, is easy to place, and can behave like a much larger passive bass trap. In like_new condition, with original accessories and a clean home-use history, it’s a strong buy for someone who knows their room is the bottleneck rather than their speakers.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
PSI Audio traces its roots to 1977 in Switzerland, when Alain Roux founded the company with a singular vision: to create the world's finest sound reproduction systems. Emerging from the studio monitor division of Studer after its acquisition, the brand was reborn under Relec SA, upholding a legacy of Swiss precision engineering dedicated to unaltered audio fidelity. Handcrafted in Switzerland for over four decades, PSI Audio embodies meticulous analog design, free from DSP corrections, honed through collaborations with top research institutions and mastering studios.
The brand specializes in high-performance active studio monitors, renowned for their scientific precision in eliminating acoustic distortions at the source. Models like the A25-M exemplify three-way designs delivering flat frequency response within 1 dB across the spectrum. PSI has expanded into home audio with the Héritage3 floorstander, adapting professional-grade analog circuitry for living rooms, alongside innovations like the AVAA C20 active bass trap to revolutionize room acoustics. Amplifiers, drivers, and enclosures are all developed in-house, prioritizing transparency over embellishment.
In the professional realm, PSI Audio commands a niche high-end position among recording, mixing, mastering, and broadcast facilities worldwide, trusted for its "real thing" reproduction that reveals music exactly as recorded. For discerning hi-fi enthusiasts, it offers boutique excellence—unrivaled accuracy and build quality that appeal to those seeking reference-level performance without compromise.
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