Acoustic Fields QDA Series (see description for pricing )

The QDA Series is a wooden quadratic diffuser + absorption based upon prime number 11, 13, 17, and 23.

QDA 11 2500-3000

The QDA – 11 is two units within one. First, a quadratic diffuser based upon prime number 11 with a diffusion frequency response from 385 Hz. – 3,450 Hz. Behind the prime 11 quadratic diffuser is our activated carbon broadband low frequency broadband absorber from 30 Hz. – 400 Hz. Broadband lower frequency absorption is required in all small rooms. The absorption performance is the same as our ACDA-10 unit. At the base of the QDA-11 is our more frequency specific carbon absorber from 30 Hz. – 50 Hz. This base absorber is designed after our ACDA-12 unit and offers large amounts of absorption from 30 – 50 Hz. which is the frequency range of unwanted pressure issues in the majority of today’s smaller rooms. The QDA measures 24″ w x 60″ h x 9″ deep and weighs 225 lbs.

QDA 13 3500-4000

The QDA-13 are two units within one. First, a quadratic diffuser based upon prime number 13 with a diffusion frequency response starting at 285 Hz. and going through 3,450 Hz. Behind the prime 13 quadratic diffuser is our activated carbon broadband low frequency absorber from 30 Hz. – 400 Hz. At the base of the QDA-13 is our more frequency specific carbon absorber from 30 Hz. – 50 Hz. The QDA measures 27″ w x 60″ h x 12″ deep and weighs 275 lbs.

QDA 17 4500-5000

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.

QDA 23 5500-6000

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.