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SB Acoustics

SB Acoustics - 12" NRX Woofer - SB34NRX75-16

SB Acoustics - 12" NRX Woofer - SB34NRX75-16

$374.95 AUD
$374.95 AUD
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Description

The 16Ω version of SB Acoustics' 12" NRX woofer, designed for open baffle use, with a cast aluminium chassis, a 3" CCAW voice coil and a cone made in-house. The higher impedance lets several drivers be wired in parallel without taking the load too low for the amplifier.

Features

  • Designed for open baffle
  • High flow venting centre pole
  • 3″ CCAW voice coil
  • Low dampening surround
  • Non-inductive voice coil former
  • Proprietary cone materials made in-house
  • Cast aluminium chassis

Specifications

General

Driver type Woofer
Nominal size 12"
Nominal impedance 16Ω
Power handling (RMS) 120 W
Sensitivity 86 dB

Thiele/Small parameters

Resonant frequency (Fs) 25 Hz
DC resistance (Re) 14 Ω
Voice coil inductance (Le) 3.2 mH
Mechanical Q (Qms) 6.65
Electrical Q (Qes) 0.8
Total Q (Qts) 0.71
Equivalent volume (Vas) 205 L
Compliance (Cms) 0.56 mm/N
Moving mass (Mms) 72 g
Mechanical resistance (Rms) 1.7 kg/s
Force factor (Bl) 14.1 T·m
Effective piston area (Sd) 508 cm²
Linear excursion (Xmax, one-way) 11 mm
Displacement volume (Vd) 558.8 cm³
Efficiency bandwidth product (EBP) 31.25

Motor

Voice coil height 28 mm
Air gap height 6 mm
Magnetic flux density 0.9 T
Magnet weight 2.1 kg

Mounting

Voice coil diameter 75.6 mm
Weight 6 kg

Materials

Cone Norex
  • Xmax is quoted one-way (peak), not peak-to-peak.
  • Sensitivity measured at 2.83V/1m.

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