SB Acoustics SB20PFCR30-8

SB Acoustics SB20PFCR30-8 8" Woofer

• Vented reinforced plastic chassis
• Proprietary cone material with natural fibers made in-house
• Soft low damping rubber surround for improved transient response
• Large spider for improved linearity
• Optimized motor system
• Vented coil former for low compression
• Non-resonant long life lead wires

Specifications

• power handling (continuous/programme) = 50 W
• frequency range = 30-5000 Hz
• resonance frequency fs = 34 Hz
• impedance R = 8 Ohm
• sound pressure level SPL = 90.5 dB (2,83V; 1m)
• DC resistance Re = 5,6 Ohm
• force factor BL = 7,7 N/A
• voice coil inductance L = 0.84 mH
• effective piston radiating area Sd = 216 cm²
• effective mechanical mass incl. air load mms = 21,2 g
• equivalent volume of compliance Vas = 66,2 l
• total Q factor Qts = 0.37 (Qms=2.66, Qes=0.43)
• voice coil diameter = 30 mm
• mounting diameter d = 187 mm
• overall diameter d = 233mm
• mounting depth (not countersunk) t = 82,4 mm