N.C. Madsensvej 1 6920 Videbæk Denmark Phone: +45 6040 5200 www.scan-speak.dk
MIDRANGE
12M/4631G00
The Revelator midranges are well known for their sliced paper cone technology. The
slices are filled with damping glue, which dramatically reduces break-up modes in the
diaphragm. In combination with Scan-Speaks low-loss linear suspension it represented
a breakthrough in midrange clarity and overall smooth frequency response
characteristics.
KEY FEATURES:
Excellent Midrange reproduction
Low-Loss Linear Suspension
Compact Neodymium Magnet System
Sliced Cone (Controls Cone Breakups)
High Output 89dB @ 2,83V
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]
75 Hz
Mechanical Q factor [Qms]
5.57
Electrical Q factor [Qes]
0.35
Total Q factor [Qts]
0.33
Force factor [Bl]
5.3 Tm
Mechanical resistance [Rms]
0.55 kg/s
Moving mass [Mms]
6.5 g
Suspension compliance [Cms]
0.69 mm/N
Effective diaph. diameter [D]
79 mm
Effective piston area [Sd]
49 cm²
Equivalent volume [Vas]
2.3 l
Sensitivity (2.83V/1m)
89 dB
Ratio Bl/√Re
2.96 N/√W
Ratio fs/Qts
228 Hz
Electrical Data
Nominal impedance [Zn]
4 Ω
Minimum impedance [Zmin]
3.8 Ω
Maximum impedance [Zo]
54.1 Ω
DC resistance [Re]
3.2 Ω
Voice coil inductance [Le]
0.22 mH
Power Handling
100h RMS noise test (IEC 17.1)
40 W
Long-term max power (IEC 17.3)
- W
Voice Coil and Magnet Data
Voice coil diameter
38 mm
Voice coil height
10 mm
Voice coil layers
2
Height of gap
4 mm
Linear excursion
± 3 mm
Max mech. excursion
± 7 mm
Unit weight
0.6 kg
