Manufacturer

SONATECH GmbH + Co. KG

SONATECH is a southern German specialist for room acoustics and noise control, based in Ungerhausen (Bavaria). The company supplies acoustic solutions from a single source: consultancy, sound measurement, product and installation. The range spans the textile pure and pure+ ceiling and wall elements, the printable ConceptLine elements and QuietLine ceiling sails, Basotect and PUR foam absorbers, SkyLine acoustic columns and industrial solutions such as Cube, Baffel and MultiLane. The absorption values come from laboratory measurements based on the approach of DIN EN ISO 354. The materials are flame-retardant to DIN 4102 B1; for the Basotect foams, building-authority fire-protection test certificates are available.

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Documents

Datasheet

SONATECH Pur Prisma 500

Name: SONATECH Pur Prisma 500
Brand: SONATECH GmbH + Co. KG

Pur Prisma 500

Freestanding

Description

Pur Prisma 500 is a self-supporting edge absorber made of flexible PUR foam. Placed in the room corners, the anthracite-coloured prism damps room modes across a broad frequency range and can be positioned flexibly as a design element.

Technical data

Material: flexible PUR foam, open-cell, self-supporting

Surface: fine open-cell structure

Up to fire class: DIN 4102 B3 / FMVSS 302

Colours: anthracite

Measurement data

Sound absorption

ISO 354 – reverberation chamber

A_obj

1.15 m²

at 1 kHz

Frequency values

A_obj nach ISO 354 (m²)

f (Hz)	125	250	500	1k	2k	4k
A_obj	1.20	1.19	1.20	1.15	1.06	0.91

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Method (354): Measured

Measurement date (354): 2010-05-14

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Measured values as a table (1 measurement)

SONATECH Pur Prisma 500: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-up	α_w	100 Hz	125 Hz	160 Hz	200 Hz	250 Hz	315 Hz	400 Hz	500 Hz	630 Hz	800 Hz	1000 Hz	1250 Hz	1600 Hz	2000 Hz	2500 Hz	3150 Hz	4000 Hz	5000 Hz
1 Stück, in Raumkanten (A_obj, m²)	–	1.21	1.38	1.02	1.20	1.25	1.11	1.21	1.17	1.21	1.20	1.14	1.12	1.09	1.06	1.02	0.98	0.93	0.83

Measured values as a table (1 measurement)

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Last updated: 11/09/2026