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TIW 300 8 OHM

30 cm (12") high-end woofer with a black cellulose diaphragm, large-format magnet arrangement and a massive aluminium diecast basket. Thanks to the multiple venting of the voice coil (pole piece hole, holes in the pole piece plate, cutouts in the aluminium diecast cone to vent the spider from behind) losses and flow noise are minimised. The combination of the voice coil carrier made of capton and the large 65 mm voice coil allow extremely high volume levels.

Short data

Usage as	Woofer
Power Handling	300 Watt
Impedance	8 Ohm

Frequency from	25 Hz
Max. Frequency	4 kHz
Sound pressure	90 dB

Chassis-data

Overall dimensions	329 mm
Baffle cutout	288 mm
Depth (Total)	143 mm
Front material	Aluminium
Frame Material	Aluminium diecast
Membrane Type	Cone
Membrane Material	Cellulose

Voice coil Ø	65 mm
Voice coil height	23 mm
Voice coil material	Kapton
Air gap height	8 mm
Magnet Ø	180 mm
Magnet-inductance	1.1 T

Thiele-Small-Parameter

Resonance fs	fs: 25 Hz
Mechanical Q	Qms: 4.59
Electrical Q	Qes: 0.3
Total Q	Qts: 0.28
Equivalent Air-Volumen	Vas: 160 Liter
DC-Resistance	Re: 5.4 Ohm
Coil Inductance	Le: 1.7 mH

Moving Mass	Mms: 92 g
Max. Excursion +/-	Xmax: 16 mm
BL Product	Bl: 16.5 N/A
Membrane Area	Sd: 510 cm²
Sound pressure	dB: 91 SPL

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