Scanspeak 21W-8555-00 User Manual [ru]

Classic
8″ Woofer

Type Number: 21W/8555-00
Features:

The Classic line consists of all the highly regarded transducers
that have been appraised and loved by so many customers over
the years. The goal has been to assemble all the diamonds,
developed over the years, speakers that fully live up to the
heritage of the brand.

Driver Highlights: Hard paper cone, low loss rubber surround,
SD-1 motor

Specs:

Electrical Data

Nominal impedance
Minimum impedance
Maximum impedance
DC resistance
Voice coil inductance

T-S Parameters

Resonance Frequency
Mechanical Q factor
Electrical Q factor
Total Q factor
Force factor
Mechanical resistance
Moving mass
Suspension compliance
Effective cone diameter
Effective piston area
Equivalent volume
Sensitivity (2.83V/1m)
Ratio BL/√(Re)
Ratio fs/Qts

Zn 8 ohm
Zmin -- ohm
Zo -- ohm
Re 5.5 ohm
Le 0.4 mH

fs 20 Hz
Qms 4.5
Qes 0.33
Qts 0.31
Bl 8.2 Tm
Rms 0.9 Kg/s
Mms 32 g
Cms -- mm/N
D -- cm
Sd 220 cm
Vas 136 ltrs
87 dB

--
F --

Power handling

100h RMS noise test (IEC)
Long-term Max Power (IEC 18.3)
Max linear SPL (rms) @ power
Short Term Max power (IEC 18.2)

Voice Coil and Magnet Parameters

Voice coil diameter
Voice coil height
Voice coil layers
Height of the gap
Linear excursion +/­Max mech. excursion +/­Flux density of gap
Total useful flux
Diameter of magnet

2

Height of magnet
Weight of magnet

Notes:
IEC specs refer to IEC 60268-5 third edition.
All ScanSpeak products are RoHS
compliant.

100 W

-- W

-- dB/W

-- W

42 mm

-- mm

--

-- mm

6.5 mm
12 mm

-- mWb

-- mWb

-- mm

-- mm

-- Kg

Frequency: 21W/8555-00

Mechanical Dimensions:21W/8555-00

Drawing Dimensions

Outside Diameter
Flange Thickness
Magnet Diameter
Cutout Diameter
Interior Depth
Hole Diameter
Screw Circle Diameter

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