QDA-17 Quadratic Diffuser Absorber


The QDA – 17 are two units within one. First, a quadratic diffuser based upon prime number 13 with a diffusion frequency response starting at 225 Hz. and going through 3,450 Hz. Behind the prime 17 quadratic diffuser is our activated carbon broadband low frequency absorber from 30 Hz. – 400 Hz. At the base of the QDA-17 is our more frequency specific carbon absorber from 30 Hz. – 50Hz. The QDA measures 37″ w x 60″ h x 16″ deep and weighs 325 lbs.

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 17 gives you diffusion from 225 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 35″W x 60″H x 18″D and weighs 250 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: 000010445 Categories: ,

Additional information

Weight 250 lbs
Dimensions 35 × 60 × 18 in


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