SB Acoustics SB17NBAC35-4

SB Acoustics SB17NBAC35-4 6.5" Woofer

• Vented cast aluminum chassis for optimum strength and low compression
• Geometrically reinforced aluminum cone for optimum piston operation and reduced break-up
  
• Soft low damping rubber surround for improved transient response
• Non-conducting fibre glass voice coil former for minimum damping
• Extended copper sleeve on pole piece for low inductance and low distortion
• CCAW voice coil for reduced moving mass
• Long life silver lead wires
• Vented pole piece for reduced compression

Specifications

• power handling (continuous/programme) = 60 W
• resonance frequency fs = 30 Hz
• impedance R = 4 Ohm
• sound pressure level SPL = 90 dB (2,83V; 1m)
• DC resistance Re = 3,1 Ohm
• force factor BL = 4,9 N/A
• voice coil inductance L = 0,13 mH
• effective piston radiating area Sd = 118 cm²
• effective mechanical mass incl. air load mms = 12,4 g
• equivalent volume of compliance Vas = 42,6 l
• total Q factor Qts = 0,29 (Qms=4,3, Qes=0.31)
• voice coil diameter = 35,5 mm
• mounting diameter d = 145 mm
• overall diameter d = 171 mm
• mounting depth (not countersunk) t = 75 mm