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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, active bass traps that are compact, silent, amazingly effective in the low bass regions where passive devices would need to be huge and very costly to incorporate into the room.
Unique: easy to set up and move, no calibration required, as efficient as passive absorbers 25 times its size, the AVAA C20 typically reduces the resonance time of all room modes between 15 Hz and 150 Hz by up to 50%.
Since its release in 2016, AVAA has grown a reputation of being the secret weapon of the acoustic treatments and a revolution in room acoustics.
Simply place it where your room modes are and it will absorb them. No calibration required.
I can deliver in the SE side of Melbourne, happy to meet up with buyers further away. Should be no problem to ship to major cities as they are well packed.