Manufacturer

BK Raumakustik

BK Raumakustik (Böcking Kemmerling Raumakustik GmbH) plans and delivers bespoke room-acoustic solutions made from the aPerf® material: from consulting through development to turnkey installation. Head office in Neuss, Rhine/Main branch in Frankfurt. aPerf® is a sound-absorbing nonwoven made of 100 % polyester (partly recycled PET bottles), thermally and mechanically bonded without chemical binders. The material is self-supporting and can be used without a frame, is dyed throughout, ball-impact-safe per DIN 18032, OEKO-TEX Standard 100 certified and fully recyclable. Manufactured in Germany and Switzerland. From the aPerf® materials BK Raumakustik builds wall panels, ceiling rafts, desk dividers, broadband and bass absorbers, acoustic prints and industrial hall acoustics. Member of the DGNB.

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Documents

19 mm · Oak decor 19 mm · Eiche Furnier 25 mm · warm white PET

SmartPerf®

Name: SmartPerf®
Brand: BK Raumakustik

SmartPerf

WallCeiling

Description

The micro-perforated acoustic panel: around 300,000 micro-pores per m² in a surface lamination that reads as closed, on a high-absorption aPerf® core. From a normal viewing distance the surface looks smooth and closed while the acoustics stay fully effective. Wipeable and therefore also suited to hygiene-sensitive areas. In three versions: oak decor foil and real oak veneer (each 19 mm, one-sided) plus white PET (25 mm, double-sided). Tunable via wall distance and backing bass inserts (2/3/6 cm) up to the highest absorption class A.

Technical data

Material: aPerf® core 100 % polyester (thermally & mechanically bonded) with micro-perforated surface lamination

Surface: approx. 300,000 micro-pores/m²; oak decor foil, real oak veneer or white PET

Up to fire class: Low flammability (B-s1,d0) — aPerf® panel base plate only — Only the base plate (aPerf® panel) is rated low-flammability (B-s1,d0) per DIN EN 13501-1; the finished SmartPerf® is not low-flammability. A fully low-flammability version is in development but not yet market-ready.

Application: wall and ceiling panels for prestige and hygiene-sensitive rooms

Certifications: OEKO-TEX Standard 100; inert to fungi/bacteria DIN EN ISO 846; emission-tested AgBB 2021 / French VOC A+ / Belgian VOC

Colours: oak decor, real oak veneer, warm white (PET)

Measurement data

Sound absorption

ISO 354 – reverberation chamber· 12 variants

Choose thickness

α_w

0.95

Frequency values

α_p per ISO 11654

f (Hz)	125	250	500	1k	2k	4k
α_p	0.35	0.85	0.95	0.95	0.95	0.95

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Compare		Value
	Overall build-up 50 mm + 3 cm bass insert	α_w0.95
	Overall build-up 80 mm + 6 cm bass insert	α_w0.95
	Overall build-up 100 mm + 8 cm bass insert	α_w0.95
	Overall build-up 200 mm	α_w0.95
	Overall build-up 40 mm + 2 cm bass insert	α_w0.90
	Overall build-up 400 mm	α_w0.85
	Overall build-up 50 mm	α_w0.75
	Direct (no gap)	α_w0.55

Absorber class: A

Measured values as a table (12 measurements)

SmartPerf®: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-up	α_w	Absorber class	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
25 mm · white · Direct (no gap)	0.60	C	0.02	0.05	0.12	0.22	0.29	0.46	0.62	0.71	0.80	0.93	0.96	1.00	1.01	0.99	0.98	0.96	0.91	0.91
25 mm · white · Overall build-up 50 mm	0.75	C	0.10	0.15	0.21	0.34	0.43	0.63	0.78	0.90	0.90	0.97	0.99	0.98	0.98	0.97	0.96	0.96	0.94	0.91
25 mm · white · Overall build-up 200 mm	0.90	A	0.37	0.55	0.65	0.70	0.69	0.85	0.86	0.88	0.85	0.85	0.86	0.92	0.96	0.99	1.01	0.96	0.94	0.94
25 mm · white · Overall build-up 400 mm	0.85	B	0.41	0.68	0.68	0.68	0.67	0.77	0.73	0.73	0.82	0.87	0.91	0.94	0.98	0.99	0.99	0.99	0.95	0.92
19 mm · oak · Direct (no gap)	0.55	D	0.03	0.04	0.09	0.17	0.21	0.32	0.46	0.60	0.72	0.81	0.90	0.95	1.00	1.01	1.02	0.98	0.92	0.90
19 mm · oak · Overall build-up 40 mm + 2 cm bass insert	0.90	A	0.10	0.18	0.31	0.51	0.64	0.78	0.89	0.91	0.94	0.94	0.96	0.95	0.98	0.97	0.96	0.97	0.96	0.94
19 mm · oak · Overall build-up 50 mm	0.75	C	0.06	0.11	0.18	0.35	0.43	0.57	0.74	0.82	0.91	0.94	0.96	0.98	0.98	0.95	0.94	0.94	0.94	0.94
19 mm · oak · Overall build-up 50 mm + 3 cm bass insert	0.95	A	0.20	0.35	0.56	0.75	0.88	0.92	0.96	0.94	0.96	0.93	0.93	0.95	0.96	0.94	0.96	0.97	0.94	0.93
19 mm · oak · Overall build-up 80 mm + 6 cm bass insert	0.95	A	0.41	0.64	0.87	0.87	1.01	0.96	0.95	0.91	0.90	0.90	0.90	0.92	0.96	0.95	0.98	0.97	0.95	0.93
19 mm · oak · Overall build-up 100 mm + 8 cm bass insert	0.95	A	0.49	0.71	0.89	0.86	0.99	0.93	0.91	0.87	0.87	0.88	0.89	0.91	0.97	0.96	0.98	0.98	0.96	0.93
19 mm · oak · Overall build-up 200 mm	0.95	A	0.34	0.52	0.63	0.69	0.81	0.81	0.89	0.86	0.84	0.83	0.81	0.93	0.95	0.93	0.96	0.97	0.96	0.94
19 mm · oak · Overall build-up 400 mm	0.85	B	0.51	0.60	0.69	0.76	0.73	0.82	0.76	0.66	0.79	0.84	0.87	0.90	0.95	0.99	0.98	1.00	1.00	1.00

Measured values as a table (12 measurements)

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Last updated: 16/09/2026