SB Acoustics SB12CACS25-4

SB Acoustics SB12CACS25-4 Ceramic 4" Woofer

• Vented cast aluminium 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

Specifications

• power handling (continuous/programme) = 30 W
• frequency range = 60-12000 Hz
• resonance frequency fs = 51 Hz
• impedance R = 4 Ohm
• sound pressure level SPL = 88 dB (2,83V; 1m)
• DC resistance Re = 3.1 Ohm
• force factor BL = 4.3 N/A
• voice coil inductance L = 0.26 mH
• effective piston radiating area Sd = 50 cm²
• effective mechanical mass incl. air load mms = 6.1 g
• equivalent volume of compliance Vas = 5.7 l
• total Q factor Qts = 0.31 (Qms=4,89, Qes=0.33)
• voice coil diameter = 25,4 mm
• mounting diameter d = 98,2 mm
• overall diameter d = 123 mm
• mounting depth (not countersunk) t = 60,7 mm