
N.C. Madsensvej 1 6920 Videbæk Denmark Phone: +45 6040 5200 www.scan-speak.dk
MIDWOOFER
12W/8524G00
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:
Wide Operating Frequency Range
Coated NRSC Fibre Glass Cone (patent)
Die cast Alu Chassis vented below spider
Suitable for 2-way or 3-way (as midrange)
Low Damping SBR Rubber Surround
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]
52 Hz
Mechanical Q factor [Qms]
3.42
Electrical Q factor [Qes]
0.35
Total Q factor [Qts]
0.32
Force factor [Bl]
5.4 Tm
Mechanical resistance [Rms]
0.54 kg/s
Moving mass [Mms]
5.6 g
Suspension compliance [Cms]
1.67 mm/N
Effective diaph. diameter [D]
86 mm
Effective piston area [Sd]
59 cm²
Equivalent volume [Vas]
8.2 l
Sensitivity (2.83V/1m)
85.8 dB
Ratio Bl/√Re
2.28 N/√W
Ratio fs/Qts
163 Hz
Electrical Data
Nominal impedance [Zn]
8 Ω
Minimum impedance [Zmin]
6.6 Ω
Maximum impedance [Zo]
48.2 Ω
DC resistance [Re]
5.7 Ω
Voice coil inductance [Le]
0.6 mH
Power Handling
100h RMS noise test (IEC 17.1)
40 W
Long-term max power (IEC 17.3)
70 W
Voice Coil and Magnet Data
Voice coil diameter
25 mm
Voice coil height
10 mm
Voice coil layers
2
Height of gap
4 mm
Linear excursion
± 3 mm
Max mech. excursion
± 9 mm
Unit weight
1 kg