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SB Acoustics

SB Acoustics - 8" CACS Woofer - SB23CACS45-8

SB Acoustics - 8" CACS Woofer - SB23CACS45-8

$244.95 AUD
$244.95 AUD
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Description

An 8" woofer from SB Acoustics with a white, geometrically reinforced ceramic cone in a shallow, vented cast aluminium chassis. A shorting ring in the motor reduces distortion, and the vented pole piece reduces compression.

Features

  • Soft low damping rubber surround for improved transient response
  • Geometrically reinforced ceramic cone for improved break-up control
  • Shorting ring in motor system for reduced distortion
  • Vented pole piece for reduced compression
  • Vented cast aluminium chassis for optimum strength and low compression
  • Shallow design
  • Non-conducting fibre glass voice coil former for minimum damping
  • CCAW voice coil for reduced moving mass
  • Long life silver lead wires

Specifications

General

Driver type Woofer
Nominal size 8"
Nominal impedance 8Ω
Power handling (RMS) 50 W
Sensitivity 87.5 dB

Thiele/Small parameters

Resonant frequency (Fs) 25 Hz
DC resistance (Re) 5.6 Ω
Voice coil inductance (Le) 0.6 mH
Mechanical Q (Qms) 5.41
Electrical Q (Qes) 0.44
Total Q (Qts) 0.4
Equivalent volume (Vas) 87 L
Compliance (Cms) 1.31 mm/N
Moving mass (Mms) 31 g
Mechanical resistance (Rms) 0.9 kg/s
Force factor (Bl) 7.9 T·m
Effective piston area (Sd) 216 cm²
Linear excursion (Xmax, one-way) 6.5 mm
Displacement volume (Vd) 140.4 cm³
Efficiency bandwidth product (EBP) 56.82

Motor

Voice coil height 19 mm
Air gap height 6 mm
Magnetic flux density 0.86 T
Magnet weight 0.8 kg

Mounting

Voice coil diameter 45.5 mm
Weight 2.7 kg

Materials

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

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