Damping Material
 

Audaphon puffy polyester fleece

The polyester fleece has good absorbent properties, applicable without whirling up dust and fibre. Sonofil consists of a mixture of polyester fibres - it's not flame-retardant. Heat resistant up to 140 degrees Celsius. For each 20 cdm (litre) cabinet volume 1 to 1.5 packets are needed; 1000 mm x 350 mm x 20 mm. Colour: white

Price per unit (Order No str-sonofil) EUR 3,10
 

Puffy polyester fleece Sonofil

 Good absorbent properties, applicable without whirling up dust and fibre. Sonofil consists of a mixture of polyester fibres - it's not flame-retardant. Heat resistant up to 140 degrees Celsius. For each 20 cdm (litre) cabinet volume 1 to 1.5 packets are needed; 500 mm x 350 mm x 40 mm. Colour: white

Price per unit (Order No I-3336) EUR 3,10
 

Pure sheep's wool

 If you prefer natural fabric: Visaton sheep's wool with good damping properties. For each 20 cdm (litre) cabinet volume 1 to 1.5 packets are needed. Packaging and size is the same as with Sonofile, but double thickness.

Price per unit (Order No V-5069) EUR 7,90
 

Bondum 800 damping

 Bondum 800 is a material damping frequencies above 800 Hz. Measurements: 300 x 500 x 20 mm

Price per unit (Order No I-3325) EUR 3,59
 

Bitumex/Tyrofoam

    Below: heavy, high damping bitumen board for reducing structure-borne noise of loudspeaker cabinets and other vibrating surfaces. Single-sided self-adhesive. Weight / volume: 1.800 kg / cubic metre.

Centre and above: Tyrofoam, a heavy, high damping foam to absorb airborne sound, for lining the interior walls of a loudspeaker cabinet. Weight / volume: 140 kg / cubic metre.

Type Bitumex FG 2 SK Bitumex FG 4 SK Tyrofoam SG140/10 Tyrofoam SG140/30
Order No. I-3344 I-3345 I-3346 I-3347
Thickness 2 mm 4 mm 10 mm 30 mm
Dimensions 245 x 325 mm 245 x 325 mm 245 x 325 mm 245 x 325 mm
Price per unit EUR 3,20 EUR 4,70 EUR 1,25 EUR 3,39

 

Needle and wool felt

  Nadelfilz Needle felt (left) and woo felt (same appearance, but denser) suitable for lining interior cabinet walls.

Type Needle felt NF10 Needle felt NF20
Order No. fz-NF10 fz-NF20
Thickness 10 mm 20 mm
Dimensions 400 x 1000 mm 400 x 1000 mm
Price per unit EUR 10,60 EUR 19,90

 

Bitumen board with cotton lining

 BAWOTUMEX is a bitumen board with cotton lining to reduce structure-borne noise. It needs to be glued to the inside of cabinet panels (also for automotive applications). BAWOTUMEX sheets are sized 245 x 325 mm with a thickness of 18 mm and a weight of approx. 9 kg per m².

Price per unit (Order No I-1384802) EUR 6,99
 

Damping 10

 Recycled felt self adhesiv.

Type Damping 10
Order No. 139 9014
Thickness 10 mm
Dimensions 970 x 470 mm
Price per unit EUR 18,90

 

Tyrotex

Enlarge     TyrotexSoft polyurethane foam based on polyester.

Type Tyrotex N20 Foam N25 Foam N25/3 Tyrotex N30
Order No. I-3338 py-n1054a py-n1053a I-3339
Weight/Volume 20 kg/m3 25 kg/m3 25 kg/m3 30 kg/m3
Thickness 42 mm 40 mm 30 mm 42 mm
Dimensions 500 x 1000 mm 500 x 1000 mm 500 x 1000 mm 500 x 1000 mm
Price per unit  EUR 6,90 EUR 7,90 EUR 6,80 EUR 9,90

Absorption according to DIN 52221

Absorption according to DIN 52221
Typ / Freq. 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz
N20 0,11 0,32 0,63 0,90 0,91 0,95
N30 0,16 0,54 1,01 0,99 1,01 1,02

 

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