
N.C. Madsensvej 1 · 6920 Videbæk · Denmark · Phone: +45 6040 5200 · www.scan-speak.dk
WOOFER 22W/4534G00
The Discovery series offer traditional design, superior sound, a solid construction, and
a wide range of variants. Combining these elements - plus a wealth of technical
features and finesses - it gives our customers the possibility of acquiring a tailor-made
Scan-Speak solution with very good performance at a reasonable low price point!
KEY FEATURES:
· High Output 92,5dB @ 2,83V
· Coated NRSC Fibre Glass Cone
· Low Damping SBR Rubber Surround
· Low Resonance Freq. 30Hz
· Magnet System w. Alu Ring
· Die cast Alu Chassis vented below spider
Notes:
IEC specs. refer to IEC 60268-5 third edition.
All Scan-Speak products are RoHS compliant.
Data are subject to change without notice.
Datasheet updated: February 22, 2011.
T-S Parameters
Resonance frequency [fs] 30 Hz
Mechanical Q factor [Qms] 3.70
Electrical Q factor [Qes] 0.37
Total Q factor [Qts] 0.34
Force factor [Bl] 6 Tm
Mechanical resistance [Rms] 1.19 kg/s
Moving mass [Mms] 23.7 g
Suspension compliance [Cms] 1.23 mm/N
Effective diaph. diameter [D] 173 mm
Effective piston area [Sd] 235 cm²
Equivalent volume [Vas] 95.0 l
Sensitivity (2.83V/1m) 92.4 dB
Ratio Bl/√Re 3.46 N/√W
Ratio fs/Qts 88 Hz
Electrical Data
Nominal impedance [Zn] 4 Ω
Minimum impedance [Zmin] 3.7 Ω
Maximum impedance [Zo] 33.0 Ω
DC resistance [Re] 3 Ω
Voice coil inductance [Le] 0.33 mH
Power Handling
100h RMS noise test (IEC 17.1) 70 W
Long-term max power (IEC 17.3) 120 W
Voice Coil and Magnet Data
Voice coil diameter 38 mm
Voice coil height 17.3 mm
Voice coil layers 2
Height of gap 6 mm
Linear excursion ± 5.7 mm
Max mech. excursion ± 12 mm
Unit weight 2.1 kg