JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.
Stock up on studio essentials before your next session. Explore top selling gear from the best brands.
Checkout using your account
This form is protected by reCAPTCHA - the Google Privacy Policy and Terms of Service apply.
Checkout as a new customer
Creating an account has many benefits:
(0)
* Required Fields
MICROPHONES
OUTBOARD
SOFTWARE
MONITORS
INSTRUMENTS
Out of stock
The PSI AVAA C20 is designed to absorb the standing modes between 15 and 150 Hz in a room. It will do so just like passive absorbers but in a much more efficient way and using up much less space. Each operating AVAA will have the same effect as a hole in the wall much larger than the dimensions of the AVAA (that is 0.2 m2). The exact ratio will depend on the frequency and environment but typically range between 5 and 20.
The AVAA will affect the impedance of the air and “suck” low frequencies around it. Therefore the best position to place an AVAA is in the most rigid corners as that is where all room modes will be most present. It is important to work on the positioning of loudspeakers and listening, as the AVAA will have little effect on inevitable first reflections.
A microphone will measure the acoustic pressure in front of an acoustic resistance.
The acoustic resistance is designed to let air through but reducing significantly the pressure.
Behind the acoustic resistance, a transducer membrane is driven to absorb the volume of air going through the acoustic resistance as well as ensuring a specific acoustic impedance in front of this acoustic resistance.
When in function, this acoustic impedance in front of the acoustic resistance is significantly lower than in ambient air and therefore acts as a pressure sink. The acoustic impedance of the air is affected typically over a radius of 1 to 1.5 m around the AVAA. This explains how the AVAA can be more absorbent that its actual surface of perfect absorber.
It is designed to absorb frequencies between 15 and 150 Hz and is most effective on room modes that are the result of multiple reflections.
The best gear advice always comes from those who use it the most. That's where you come in! Let the pro audio world hear your voice with a review of the PSI AVAA C20 - Graphite Black (Demo Deal) . Once you submit your review, please check your email and verify your address to have it posted.
exclamation-circle
