QDA-23 Quadratic Diffuser Absorber


The QDA – 23 are units that measure 42 1/2″ w x 60″ h x 16″ d. They are on casters for easy positioning. They are three units in one. First, we have a quadratic diffuser that will diffuser energy from 275 Hz. – 3,340 Hz. Behind the diffuser is our ACDA-10 technology with broadband absorption from 30 Hz. – 300 Hz. In the base of the QDA-23 unit is our ACDA-12 technology which absorbs energy from 30 – 50 Hz. The most powerful diffuser/absorber combination ever created. Units are available in different wood choices and weigh 250 lbs each.

ACDA-10 Riverbank Test Result

ACDA-12 Riverbank Test Result

Want the ultimate in musical involvement? Looking for an emotional connection and experience each and every time you play your music? Then our flagship Quadratic Diffuser Absorber is for you.

  • An acoustical industry first; Middle range diffusion and low frequency absorption all in one beautifully crafted unit.
  • The quadratic diffuser gives you diffusion from 200 Hz. all the way up to 3,400 Hz. This provides you with incredible separation, definition, and additional timbre quality to your precious mid range and vocals.
  • The low frequency absorber starts absorbing energy at 30 Hz. and moves through 200 Hz. so your bass instruments are both powerful and clear.
  • The combined effect is a larger and deeper sound stage than you will have ever experienced before so you can hear your mid range and vocals as clear and clean as if you were in the studio with the musician.
  • A beautifully crafted solid wood cabinet designed to match your room decor.
  • A unit that measures 36″W x 60″H x 20″D and weighs 275 Lbs.

Request Quote

These units have special handling and shipping requirements, due to their weight and size. Please call us on 520-392-9486 or click HERE to contact us so we can assist you further.

SKU: 000010444 Categories: ,

Additional information

Weight 350 lbs
Dimensions 55 × 60 × 19 in


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