
N.C. Madsensvej 1 6920 Videbæk Denmark Phone: +45 6040 5200 www.scan-speak.dk
SUBWOOFER
30W/4558T00
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:
56mm Peak Excursion, 25mm Linear
Low Resonance Freq. 17Hz
Magnet System w. Alu Ring
High Output 89dB @ 2,83V
Anodized Alu Cone, Fibre Glass Dust Cap
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]
17 Hz
Mechanical Q factor [Qms]
5.01
Electrical Q factor [Qes]
0.34
Total Q factor [Qts]
0.32
Force factor [Bl]
10.5 Tm
Mechanical resistance [Rms]
2.88 kg/s
Moving mass [Mms]
135 g
Suspension compliance [Cms]
0.65 mm/N
Effective diaph. diameter [D]
244 mm
Effective piston area [Sd]
466 cm²
Equivalent volume [Vas]
197 l
Sensitivity (2.83V/1m)
89 dB
Ratio Bl/√Re
6.51 N/√W
Ratio fs/Qts
53 Hz
Electrical Data
Nominal impedance [Zn]
4 Ω
Minimum impedance [Zmin]
3.3 Ω
Maximum impedance [Zo]
40.9 Ω
DC resistance [Re]
2.6 Ω
Voice coil inductance [Le]
0.83 mH
Power Handling
100h RMS noise test (IEC 17.1)
150 W
Long-term max power (IEC 17.3)
350 W
Voice Coil and Magnet Data
Voice coil diameter
51 mm
Voice coil height
33 mm
Voice coil layers
4
Height of gap
8 mm
Linear excursion
± 12.5 mm
Max mech. excursion
± 28 mm
Unit weight
6.3 kg