Product Specifications |
Manufacturer |
SB ACOUSTICS |
Speaker Type |
Ceramic Cone Midbass |
Nominal Diameter |
12cm |
Impedance |
8 ohms |
Power Handling (RMS) |
30 W |
Frequency Response |
55 Hz |
Sensitivity |
85.5 dB |
Voice Coil Diameter |
25mm |
SB ACOUSTICS SB12CACS25-8, 12cm CERAMIC CONE WOOFER 8OHM
Features
Vented cast aluminum chassis for optimum strength and low compression
Ceramic cone
Soft low damping rubber surround for improved transient response
Shorting ring in motor system for reduced distortion
Non-conducting fibre glass voice coil former for minimum damping
CCAW voice coil for reduced moving mass
Long life silver lead wires
Vented pole piece for reduced compression
Specs
Nominal Impedance 8 Ω
DC resistance, Re 6.4 Ω
Voice coil inductance, Le 0.34 mH
Effective piston area, Sd 50 cm2
Voice coil diameter 25.4 mm
Voice coil height 15 mm
Air gap height 5 mm
Linear coil travel (p-p) 10 mm
Magnetic flux density 1.07 T
Magnet weight 0.40 kg
Net weight 0.92 kg
Free air resonance, Fs 51 Hz
Sensitivity (2.83 V / 1 m) 85.5 dB
Mechanical Q-factor, Qms 4.85
Electrical Q-factor, Qes 0.4
Total Q-factor, Qts 0.37
Moving mass incl. air, Mms 5.3 g
Force factor, Bl 5.2 Tm
Equivalent volume, VAS 6.5 liters
Compliance, Cms 1.84 mm/N
Mechanical loss, Rms 0.35 kg/s
Rated power handling* 30 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.