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Damping Material, Sealing Tape, Spikes

Here you find:
- Damping Material
- Sealing Tape
- Coat for driver diaphragms
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Damping Material

Puffy polyester fleece Sonofil
SonofilGood 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.

Order No. I-3336 (white)         Price per unit  EUR 3,10
Order No. I-3331 (charcoal)    Price per unit  EUR 3,60

Pure sheep's wool
Schafswolle 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.

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

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

Order No. I-3325        Price per unit   EUR 2,60

Bitumen board with cotton lining
Baumwoll-Dämmstoff Bawotex 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.

Order No. I-1384802    Price per unit   EUR 6,90

Bitumex/Tyrofoam
BitumexBelow: 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 3,50

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

TypeNeedle felt NF8 Needle felt NF10 Needle felt NF20
Order No. fz-NF8 fz-NF10 fz-NF20
Thickness 8 mm 10 mm 20 mm
Dimensions 400 x 1000 mm 400 x 1000 mm 400 x 1000 mm
Price per unit - not available EUR 10,60 - not available

Damping 10 and Damping 30
Recyclingdämmmatte Recycled felt self adhesiv.

 

Type Damping 10 Damping 30
Order No. 139 9014 139 9015
Thickness 10 mm 30 mm
Dimensions 970 x 470 mm 1160 x 470 mm
Price per unit EUR 18,90 EUR 31,90


Tyrotex
TyrotexSoft polyurethane foam based on polyester.
 

Type Tyrotex N20 Tyrotex N30
Order No. I-3338 I-3339
Weight/Volume 20 kg/m3 30 kg/m3
Thickness 42 mm 42 mm
Dimensions 500 x 1000 mm 500 x 1000 mm
Price per unit  EUR 6,90 EUR 9,90

technical data:
 
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

Mini Tyrotex MN10
Pyradium Below: heavy, high damping bitumen board for reducing structure-borne noise of loudspeaker cabinets and other vibrating surfaces. Single-sided self-adhesive damping board
Dimensions: 325 x 245 x 10 mm
Weight / volume: 0.25 kg / cubic metre
Price per unit - not available

Sealing Tape

Band Self-adhesive sealing tape made polyethylene foam in charcoal colour. We suggest MDM-5 for hi-fi and MDM-20 for PA applications.
 

Type MDM-5 I-3349 I-3340 MDM-20
Thickness 2 mm 2 mm 3 mm 2 mm
Width 5 mm 5 mm 9 mm 20 mm
length 5 pcs.
1.5 m each

coil 5 m
coil 5 m coil 20 m
Price per unit EUR 4,90 EUR 3,30 EUR 4,90 EUR 16,40

 

Coat for driver diaphragms

Visaton coat for driver diaphragms (black)

For increasing the inner damping, suppression of partial vibration and linearisation of frequency response, also prevents diaphragm bleach.

Particularly suited for paper cone drivers. Remains water-soluble until hardened.

LTS-50 (V-5209). Price per 50 ml bottle: EUR 8,80

 

... Sound Varnish is based on an extremely expensive substance. Available in 10 ml container and upon request in 250 ml container.

Ultee Audiotechnik Sound Varnish

Sound Varnish by Ultee Audiotechnik

This coating lacquer has a similar effect as C37 in helping to damp unwanted vibration. But Ultee Audiotechnik used a different road to success.

The lacquer increases the speed of sound in the soaked material, shifting the resonance to higher frequencies.

Every coat should be allowed to dry for 48 hours. Successive coats need even more time. Further hints by the manufacturer

Sound Varnish (ultee-sv10). Price per 10 ml bottle: EUR 24,95

 

Ultee Audiotechnik Sound Varnish

New as of March 2004

Sound Varnish-D by Ultee Audiotechnik

Sound Varnish-D with considerably higher damping. Particularly suitable for metal and hard synthetic diaphragms like Kevlar and fibre glass, but not for carbon. Further hints by the manufacturer

Sound Vanish D (ultee-sv10-d). Price per 10 ml bottle: EUR 28,30
Sound Varnish hints by Mr Ultee himself:
It's advisable to use an airbrush for diaphragms that suck-up immense quantities of lacquer (especially the thin paper diaphragms of full range drivers) to ensure thin and even distribution. Without the necessary expertise using a conventional brush, it's easy to soak the diaphragm beyond saturation point (one has to be quick). Even the cheapest airbrush with compressed air bottle instead of a compressor by Conrad Electronic (around 25 EUR for both) shows excellent results. For those who own expensive full range drivers (Lowther, AER or the big Fostex models) and don't have the courage to coat them, the airbrush is the answer.

  Venylflex

Intertechnik Vinylflex

Coating lacquer to increase inner damping, for drivers with paper diaphragms.

50 ml bottle with black liquid

EUR 7,30

  Stabilon

Intertechnik Stabilon

Diaphragm hardening lacquer for paper cone drivers.

50 ml bottle with transparent liquid

- not available

 
Spikes

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