SB Acoustics SB42FHCL75-6 15" Honeycomb cone SubWoofer

Features

• Light weight rigid honeycomb cone (hard paper honeycomb with fiber glass skin layers)
• 3″ copper voice coil for improved power handling
• Long life silver lead wires
• Vented pole piece for minimum compression
• Vented cast aluminum chassis for optimum strength and low compression
• Low damping rubber surround for improved dynamic linearity
• Non-conducting fiber glass voice coil former for minimum damping
• Large motor system

Specifications

• Nominal Impedance 6 ?
• DC resistance, Re 4.6 ?
• Voice coil inductance, Le 2.1 mH
• Effective piston area, Sd 850 cm²
• Voice coil diameter 75.6 mm
• Voice coil height 31 mm
• Air gap height 8 mm
• Linear coil travel (p-p) 23 mm
• Magnetic flux density 1.1 T
• Magnet weight 3.6 kg
• Net weight 10.2 kg
• Free air resonance, Fs 18.4 Hz
• Sensitivity (2.83V/1m) 93 dB
• Mechanical Q-factor, Qms 7.4
• Electrical Q-factor, Qes 0.32
• Total Q-factor, Qts 0.31
• Moving mass incl. air,Mms 166 g
• Force factor, Bl 16.7 Tm
• Equivalent volume, Vas 462 liters
• Compliance, Cms 0.45 mm/N
• Mechanical loss, Rms 2.6 kg/s
• Rated power handling* 300 W

* IEC 268-5, T/S parameters measured on drive units that are broken in.