The PSI Audio AVAA C214 is an active bass trap intended for precise control of low-frequency modes in studios and hi‑fi rooms. The solution is for situations where passive treatment becomes ineffective or spatially unprofitable, with plug-and-play operation without the need for calibration.
Technical characteristics
Type: Active Velocity Acoustic Absorber
Frequency range of effective absorption: approximately 15–160 Hz (according to the manufacturer)
Working principle: the microphone measures the acoustic pressure, the feedback controls the acoustic impedance; analog processing, without DSP
Latency: negligible (practically instantaneous system response)
Effective absorption capacity: equivalent to a significantly larger amount of passive absorbers in the bass range, especially at modal frequencies
Power supply: 100–240 V AC, autoswitching
Consumption: low, typically < 30 W in operation
Operating noise: very low, no fan; suitable for control rooms and mastering
Installation: freestanding/along the wall or in corners, at points of maximum acoustic pressure
Sound characteristics
It objectively shortens reverberation time and dampens modal peaks in the deep bass, delivering a tighter, more defined low-end. Improves flatness of response below ~160 Hz, clarity of transients and tonal balance, with less "boom" effect and tailing in the room.
Price: 2,200 EUR
Compatibility and application
Ideal for combination with studio monitors, hi‑fi systems and home theater. Works independently of system electronics; it gives the best results in pairs or sets, arranged in corners or along walls where modes occur.
Condition and maintenance
Used, in excellent condition. The unit works quietly and stably, with no known functional defects. No periodic calibration is required; it is recommended to periodically clean the housing and check the stability of the installation. No service history is required for this category, and the device is ready for immediate use.
