S/S Classic 21W 8555.10 Diameter:222mm

Hard Paper Cone Mid/Bass

The 21w 8555 is an 8" bass utilising a hard paper cone, which is impregnated and coated to dampen the resonance normally associated with stiff cones.

 The patented SD-1 magnet system is designed to almost eliminate modulation and dynamic distortion, whilst the low loss linear suspension and rubber surround reduces compression and combine to produce dynamic linearity and low colouration.

Technical Data:

Frame diameter:    222mm

Sensitivity (2.83v/1m):   87.5dB

Nominal impedance:   8 ohm

Frequency range:   19Hz - 2000Hz

Free air resonance:   20Hz

DC resistance (Re):   5.5 ohm

Voice coil inductance (Le):   0.6mH

Effective piston area (Sd):   220.0cm

Moving Mass (Md):   36g

Force factor (BL):   9.3Tm

Excursion (lin-max):   +/-6.5mm : +/-12mm

Qms:   4.8

Qes:   0.27

Qts:   0.26

Vas:   136L

Voice coil diameter:   42mm

Nominal power handling:   100w

Physical Sizes:

Frame diameter:   222mm

Overall depth (front of frame to rear of magnet):   88mm

Flange thickness:   5.5mm

Fixing holes:   6 x 5mm diameter on 214mm PCD

Cutout diameter:   196mm

Price per single unit excluding VAT