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acoustic panel material

QRD-D1/D2 Diffuse Reflection Panel

Two-dimensional (2D) quadratic-residue diffusion · Deeper 100 mm wells extend the low-frequency working range
Fire: GB 8624-2012 B1 · E1 formaldehyde

Table of Contents

Description

QRD-D1/D2 Diffuse Reflection Panel

QRD-D1/D2 panels diffuse sound in two dimensions — scattering both horizontally and vertically. The 100 mm depth class extends the working range downward, making them effective where deeper bass diffusion is required.

Key features

  • Two-dimensional (2D) quadratic-residue diffusion
  • Deeper 100 mm wells extend the low-frequency working range
  • 600 × 600 / 600 × 1200 / 1200 × 1200 mm
  • Rubber wood / multi-layer board + veneer

Material specifications

PropertyValue
NameQRD-D1/D2 Diffuse Reflection
StructureRubber wood / multi-layer board + veneer
SubstrateRubber solid wood, pine wood etc.
FinishOriginal wood colour / paint
Specification600 × 600 / 600 × 1200 / 1200 × 1200 mm; thickness 100 mm

Where it is used

Concert halls, theatres, home cinemas, recording studios and other spaces with acoustic requirements.

Ordering & delivery

ItemDetail
Minimum order quantityQuoted per project — no fixed minimum for a documented layout
Production lead time15–25 working days from order confirmation
PackagingFlat-packed, 5 pieces per carton
Container loading20′ GP ≈ 800 pieces
TermsEXW Shanghai · FOB Shanghai · CIF on request
Payment30% deposit with order, balance against B/L copy by T/T; L/C at sight on request

Certification & test data

  • Reaction to fire (CN): GB 8624-2012 — B1
  • Formaldehyde: GB 18580-2017 — E1
  • Sound absorption: ISO 354 reverberation-room measurement; third-octave coefficients published above.
  • Chain of custody: FSC® CoC (FSC-STD-40-004 V3.1), certified by RINA and held in the name of Shanghai MST Industrial Co., Ltd. — valid to 11 November 2027.

Component test reports are issued to our manufacturing partners rather than to MST. Authorised copies, including laboratory and certificate numbers, are released with every quotation.

Samples

A half-scale diffuser section is despatched free of charge within 7 working days so you can check the geometry and the finish.

Talk to us about your project

Email your drawing, panel schedule or a square-metre count to sales@mstacoustics.com, or send the enquiry form on this page. We reply within one working day with pricing, lead time and freight options. Datasheets, colour charts and installation guides are collected in our technical resources library.

Frequently asked

2D or 1D diffusion?
2D scatters in both planes — preferred on ceilings and rear walls of asymmetrical rooms.

What fixing is used?
Direct screwed to wall battens or hung on the supplied cleats.

Can I order one feature panel?
Single-piece orders are accepted; unit pricing is higher than array quantities.

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