SB Acoustics SB34NRXL75-8 12'' Hard paper cone Woofer

Features

• Hard paper cone for improved piston operation (made in-house)
• Large motor system with under-cut pole piece and dual shorting rings
• Vented pole piece for minimum compression
• Vented cast aluminium chassis for optimum strength and low compression
• 3″ copper voice coil for improved power handling
• Long life silver lead wires
• Low damping rubber surround for improved dynamic linearity
• Non-conducting fibre glass voice coil former for minimum damping
• Optimized for vented enclosure

Specifications

• Nominal Impedance 8 Ω
• DC resistance, Re 6.2 Ω
• Voice coil inductance, Le 1.2 mH
• Effective piston area, Sd 508 cm²
• Voice coil diameter 75.6 mm
• Voice coil height 28 mm
• Air gap height 8 mm
• Linear coil travel (p-p) 20 mm
• Magnetic flux density 1.1 T
• Magnet weight 3.6 kg
• Net weight 8.9 kg
• Free air resonance, Fs 22 Hz
• Sensitivity (2.83V/1m) 91 dB
• Mechanical Q-factor, Qms 5.5
• Electrical Q-factor, Qes 0.29
• Total Q-factor, Qts 0.28
• Moving mass incl. air,Mms 93 g
• Force factor, Bl 16.6 Tm
• Equivalent volume, Vas 205 liters
• Compliance, Cms 0.56 mm/N
• Mechanical loss, Rms 2.35 kg/s
• Rated power handling* 200 W

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