Scan Speak 21 W 8555-10 Paper buy at hifisound.de

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21W/8555-10

The 21W/8555-10 is a mechanically upgraded version of 21W/8555-00, its major change is the a alu chassis, that maintain same shape, dimensions and visual appearance. The patented Symmetric Drive (SD-1) concept with copper in the magnet system and carbonfiber paper cone and low loss linear suspension continues to be the key features that make the 21W/8555-10 one of the best 8” woofers available.

Key features:

Patented Symmetrical Drive Motor Design SD-1
Low-Loss linear suspension
Low Damping SBR Rubber Surround
Die Cast Alu. Chassis
Air Dried Paper/Carbon Fibre Cone
42mm Voice Coil

Short data

Usage as	Woofer
Power Handling	100 Watt
Impedance	8 Ohm

Frequency from	100 Hz
Max. Frequency	1 kHz
Sound pressure	87 dB

Chassis-data

Overall dimensions	222 mm
Baffle cutout	194 mm
Depth (Total)	87 mm
Frame Material	Aluminium diecast

Voice coil Ø	42 mm
Voice coil height	19 mm
Air gap height	6 mm
Magnet Ø	121 mm

Thiele-Small-Parameter

Resonance fs	fs: 65 Hz
Mechanical Q	Qms: 4.50
Electrical Q	Qes: 0.33
Total Q	Qts: 0.31
Equivalent Air-Volumen	Vas: 134 Liter
DC-Resistance	Re: 6.4 Ohm
Coil Inductance	Le: 0.4 mH

Mech. Compliance	Cms: 1.98 mm/N
Moving Mass	Mms: 32 g
mech. Resistance	Rms: 0.89 kg/s-¹
Max. Excursion +/-	Xmax: 6.5 mm
BL Product	Bl: 8.2 N/A
Membrane Area	Sd: 220 cm²
Sound pressure	dB: 87 SPL

Frequency & Impedance

Technical Diemsnions

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