The PSI Audio AVAA C214 is an advanced active bass absorber designed and manufactured in Switzerland, developed to address low-frequency room resonances without conventional passive acoustic treatment or digital correction of the audio signal. Employing PSI Audio’s patented Active Velocity Acoustic Absorber technology, the C214 continuously monitors acoustic pressure through internal sensors and uses sophisticated digital signal processing to control its acoustic transducers. This creates a low acoustic impedance at the absorber, allowing excessive low-frequency energy to be absorbed rather than repeatedly reflected around the listening room. Operating across a broad frequency range of 15Hz to 160Hz, the AVAA C214 reduces modal decay and unwanted bass overhang, improving low-frequency definition, tonal clarity and the perception of musical detail.
Unlike conventional bass traps, which often require substantial physical volume to absorb very low frequencies, the AVAA C214 offers equivalent absorption of up to 45 times its physical size within a compact aluminium enclosure measuring just 210mm in diameter and 640mm in height. No room measurement, calibration or connection to the audio system is required. The unit operates independently of the loudspeakers and amplification, making it suitable for virtually any high-performance listening environment. Optional app control allows sensitivity adjustment and management of multiple units, while flexible placement and mounting options support discreet integration into domestic listening rooms, dedicated audio installations and professional studios.
Key Features
High-performance active low-frequency acoustic absorber
Designed and manufactured in Switzerland
Patented PSI Audio Active Velocity Acoustic Absorber (AVAA) technology
Designed to reduce standing waves and low-frequency room resonances
Effective operating frequency range: 15Hz–160Hz
Active absorption rather than conventional electronic equalisation
Absorbs acoustic energy directly within the listening room
Does not alter the audio signal supplied to the loudspeakers
Operates independently of amplifiers, source components and loudspeakers
Internal acoustic pressure sensing
Real-time digital signal processing
Electronically controlled acoustic transducers
High-excursion acoustic driver system
Low acoustic impedance generated at the absorber
Designed to reduce modal decay times and excessive bass overhang
Can improve perceived bass definition and tonal balance
Reduced low-frequency masking can reveal greater midrange detail
Absorption equivalent to a passive absorber up to 45 times its physical size
Up to 50% reduction in room-mode resonance time per unit under suitable conditions
DSP processing latency below 0.2 milliseconds
No room calibration required
No external measurement microphone required
No connection to the audio system required
Plug-and-play operation
Optional sensitivity adjustment
AVAA Remote app support
Individual and grouped control of multiple units
Suitable for installations using two or more AVAA absorbers
Particularly effective when positioned at low-frequency pressure maxima
Room corners are often suitable starting positions
Compact cylindrical aluminium enclosure
Available in black or white
Optional mounting feet for alternative positioning
Optional horizontal, wall-mounted or ceiling-mounted installation
Suitable for domestic listening rooms, dedicated hi-fi rooms and professional studios
Universal 100–240V AC mains input
Low typical operating power consumption
Five-year manufacturer's warranty, extendable by one year through registration
The PSI Audio AVAA C214 is an advanced active bass absorber designed and manufactured in Switzerland, developed to address low-frequency room resonances without conventional passive acoustic treatment or digital correction of the audio signal. Employing PSI Audio’s patented Active Velocity Acoustic Absorber technology, the C214 continuously monitors acoustic pressure through internal sensors and uses sophisticated digital signal processing to control its acoustic transducers. This creates a low acoustic impedance at the absorber, allowing excessive low-frequency energy to be absorbed rather than repeatedly reflected around the listening room. Operating across a broad frequency range of 15Hz to 160Hz, the AVAA C214 reduces modal decay and unwanted bass overhang, improving low-frequency definition, tonal clarity and the perception of musical detail.
Unlike conventional bass traps, which often require substantial physical volume to absorb very low frequencies, the AVAA C214 offers equivalent absorption of up to 45 times its physical size within a compact aluminium enclosure measuring just 210mm in diameter and 640mm in height. No room measurement, calibration or connection to the audio system is required. The unit operates independently of the loudspeakers and amplification, making it suitable for virtually any high-performance listening environment. Optional app control allows sensitivity adjustment and management of multiple units, while flexible placement and mounting options support discreet integration into domestic listening rooms, dedicated audio installations and professional studios.
Key Features
High-performance active low-frequency acoustic absorber
Designed and manufactured in Switzerland
Patented PSI Audio Active Velocity Acoustic Absorber (AVAA) technology
Designed to reduce standing waves and low-frequency room resonances
Effective operating frequency range: 15Hz–160Hz
Active absorption rather than conventional electronic equalisation
Absorbs acoustic energy directly within the listening room
Does not alter the audio signal supplied to the loudspeakers
Operates independently of amplifiers, source components and loudspeakers
Internal acoustic pressure sensing
Real-time digital signal processing
Electronically controlled acoustic transducers
High-excursion acoustic driver system
Low acoustic impedance generated at the absorber
Designed to reduce modal decay times and excessive bass overhang
Can improve perceived bass definition and tonal balance
Reduced low-frequency masking can reveal greater midrange detail
Absorption equivalent to a passive absorber up to 45 times its physical size
Up to 50% reduction in room-mode resonance time per unit under suitable conditions
DSP processing latency below 0.2 milliseconds
No room calibration required
No external measurement microphone required
No connection to the audio system required
Plug-and-play operation
Optional sensitivity adjustment
AVAA Remote app support
Individual and grouped control of multiple units
Suitable for installations using two or more AVAA absorbers
Particularly effective when positioned at low-frequency pressure maxima
Room corners are often suitable starting positions
Compact cylindrical aluminium enclosure
Available in black or white
Optional mounting feet for alternative positioning
Optional horizontal, wall-mounted or ceiling-mounted installation
Suitable for domestic listening rooms, dedicated hi-fi rooms and professional studios
Universal 100–240V AC mains input
Low typical operating power consumption
Five-year manufacturer's warranty, extendable by one year through registration
