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 pure+ Wall Element Circle

Name: SONATECH pure+ Wall Element Circle
Brand: SONATECH GmbH + Co. KG

pure+ Wall Element Circle

Wall

Description

The pure+ Wall Element Circle is a frameless, round wall absorber from the pure+ line. The impact-resistant fibre surface in a minimalist felt look is pinnable, and the low weight makes installation easy.

Technical data

Material: PES fibres, recyclable

Surface: impact-resistant fibre surface in a minimalist felt look

Up to fire class: DIN 4102 B1

Colours: white, light-grey mottled, dark-grey mottled, black

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)· 2 variants

A_obj

1.53 m²

at 1 kHz

Frequency values

A_obj per ISO 354 · octave band (m²)

f (Hz)	125	250	500	1k	2k	4k
A_obj	0.17	0.70	1.30	1.53	1.53	1.43

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Compare		Value
	Ø 0 in	A_obj1.53m²
	Ø 24 in	A_obj0.50m²

Institute: Müller-BBM, Planegg

Measurement date: 2023-08-23

Measured values as a table (2 measurements)

SONATECH pure+ Wall Element Circle: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-up	NRC	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
Ø 600 mm (A_obj, m²)	–	0.00	0.10	0.10	0.10	0.20	0.20	0.30	0.40	0.40	0.50	0.50	0.50	0.50	0.50	0.50	0.40	0.40	0.40
Ø 1.200 mm (A_obj, m²)	–	0.10	0.10	0.30	0.50	0.70	0.90	1.10	1.30	1.50	1.50	1.50	1.60	1.60	1.50	1.50	1.40	1.50	1.40

Measured values as a table (2 measurements)

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Last updated: 09/13/2026