The introduction

The function of the diffuser is to equalize the sound pressure level everywhere in the space, so that the sound in each space is as the same as possible. It is an acoustic product, and its design is based on the acoustic foundation, not personal preference.

Aiming at the limitation of MLS diffuser, Schroeder proposed qrd diffuser panel based on the secondary residual sequence.

The surface of the qrd diffuser panel (secondary remainder diffuser) is arranged by many grooves with the same width and different depths. The groove width and groove depth of the QRD diffuser are determined according to the following method: the groove width considers the wavelength 1/2 of the high diffusion frequency of zzui; the groove depth considers the wavelength 1/2 of the low diffusion frequency of zzui. After determining the depth of the groove, the second residual sequence is used as a factor to determine the depth of each groove. Formula: Sn=n²modp (integer from 0 to infinity, meaning of mod remainder). Here we only need to understand that p is a prime number (can only be divided by 1 and itself). For example, when p=7, one cycle of the sequence is: 0, 1, 4, 2, 2, 4, 1. According to the groove depth and sequence, the depth of each groove can be determined. For example, if the low diffusion frequency is selected as 500 Hz and the wavelength is 68 cm, the depth of the large groove of zzui is 34 cm, and the depth of each groove in a period is 0, 8.5 cm, 34 cm, 17 cm, 17 cm, 34 cm, 8.5 cm.

The specification

Material:Paulownia Wood/Fir Wood/ Pine Wood

Size:600*600mm or Customize

Thickness:70/100/175mm or Customize

Finishing:Painting

Color:Nature or Customize

Application:School/Music Room/ Recording Stadium etc

FAQ

Q: Are you a manufacturer or a trading company forqrd diffuser panel?
A:We are the set of design, development, production ,sale and service of industry and trade-oriented enterprises.

Q:What is your payment term?

A:T/T, Western Union, MoneyGram and Paypal.

Q:Do you accept small quantity order for qrd diffuser panel?
A:Yes,small order is welcomed .We would like to grow up with you together.

Q:What is qrd acoustic diffuser panel delivery time?

A:we can ship small quantities of qrd acoustic diffuser panel within 10 days, and large quantities can ship within 15 days.