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SB Acoustics

SB Acoustics - 6.5" NBAC Mid-Woofer - SB17NBAC35-8

SB Acoustics - 6.5" NBAC Mid-Woofer - SB17NBAC35-8

$134.95 AUD
$134.95 AUD
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Description

A 6.5" mid-woofer from SB Acoustics with a black, geometrically reinforced aluminium cone in a vented cast aluminium chassis. It has a soft low-damping rubber surround, a CCAW voice coil on a fibreglass former and a copper sleeve on the vented pole piece for low inductance and low distortion.

Features

  • Vented cast aluminium chassis for optimum strength and low compression
  • Geometrically reinforced aluminium 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

General

Driver type Mid-Woofer
Nominal size 6.5"
Nominal impedance 8Ω
Power handling (RMS) 60 W
Sensitivity 86.5 dB

Thiele/Small parameters

Resonant frequency (Fs) 31.5 Hz
DC resistance (Re) 5.7 Ω
Voice coil inductance (Le) 0.15 mH
Mechanical Q (Qms) 4.1
Electrical Q (Qes) 0.38
Total Q (Qts) 0.35
Equivalent volume (Vas) 45 L
Compliance (Cms) 2.3 mm/N
Moving mass (Mms) 12.5 g
Mechanical resistance (Rms) 0.6 kg/s
Force factor (Bl) 5.9 T·m
Effective piston area (Sd) 118 cm²
Linear excursion (Xmax, one-way) 5.5 mm
Displacement volume (Vd) 64.9 cm³
Efficiency bandwidth product (EBP) 82.89

Motor

Voice coil height 16 mm
Air gap height 5 mm
Magnetic flux density 1 T
Magnet weight 0.54 kg

Mounting

Voice coil diameter 35.5 mm
Weight 1.56 kg

Materials

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

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