
N.C. Madsensvej 1 · 6920 Videbæk · Denmark · Phone: +45 6040 5200 · www.scan-speak.dk
WOOFER 32W/8878T01
The 32W/4878T01 the most powerful woofer designed by Scan-speak. Its large 3”
voice coil and low resonance frequency is perfect to reproduce low to mid frequencies
at with high efficiency. It features a brand new type of paper-sandwich cone with a
special foam filling technology (patented) that gives the cone very high stiffness and
relative low weight. The motor system has heavy-duty copper sleeves for optimizing
eddy currents effect and minimized self-induction.
KEY FEATURES:
· Paper sandwich cone with Patented foam filling
· Spider with balanced woven in tinsel leads
· 3” Voice coil, Titanium former and paper reinforced
· Patented Symmetrical Drive motor
· Long linear excursion (+/- 7.5 mm)
· Stiff and strong die cast aluminium chassis
T-S Parameters
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: April 5, 2013.
Resonance frequency [fs] 19.1 Hz
Mechanical Q factor [Qms] 5.69
Electrical Q factor [Qes] 0.35
Total Q factor [Qts] 0.33
Force factor [Bl] 15.6 Tm
Mechanical resistance [Rms] 2.4 kg/s
Moving mass [Mms] 114.8 g
Compliance [Cms] 0.60 mm/N
Effective diaph. diameter [D] 129 mm
Effective piston area [Sd] 526 cm²
Equivalent volume [Vas] 234 l
Sensitivity (2.83V/1m) 89 dB
Ratio Bl/√Re 6.3 N/√W
Ratio fs/Qts 57.9 Hz
Electrical Data
Voice Coil & Magnet Data
Nominal impedance [Zn] 8 Ω
Minimum impedance [Zmin] 7.2 Ω
Maximum impedance [Zo] 56.8 Ω
DC resistance [Re] 6.1 Ω
Voice coil inductance [Le] 0.68 mH
Power Handling
100h RMS noise test (IEC 17.1) 350 W
Long-term max power (IEC 17.3) 700 W
Voice coil diameter 75 mm
Voice coil height 23 mm
Voice coil layers 2
Height of gap 8 mm
Linear excursion ± 7.5 mm
Max mech. excursion ± 28 mm
Unit weight 7.5 kg