SB Acoustics SW26DBAC76-4 Subwoofer

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SB Acoustics SW26DBAC76-4 Subwoofer

  • Unique patented long through shallow design
  • Vented cast aluminum chassis for optimum strength and low compression
  • Dual rigid aluminum cone structure
  • Non-conducting fiber glass coil former for minimum damping
  • Shorting ring in motor system for reduced distortion
  • 3 copper voice coil for improved power handling
  • Long life insulated silver lead wires
  • Powerful neodymium motor system
  • Nominal Impedance 4 Ω
  • DC resistance, Re 3.2 Ω
  • Effective piston area, Sd 312 cm2
  • Voice coil diameter 75.5 mm
  • Voice coil height 30 mm
  • Air gap height 6 mm
  • Linear coil travel (p-p) 24 mm
  • Magnetic flux density 1.0 T
  • Magnet weight 281 g
  • Net weight 3.43 kg
  • Free air resonance, Fs 22 Hz
  • Sensitivity (2.83V/1m) 86 dB
  • Mechanical Q-factor, Qms 4.5
  • Electrical Q-factor, Qes 0.51
  • Total Q-factor, Qts 0.46
  • Moving mass incl. air,Mms 134 g
  • Force factor, Bl 10.8 Tm
  • Equivalent volume, Vas 54 ltr.
  • Compliance, Cms 0.39 mm/N
  • Mechanical loss, Rms 4.1 kg/s
  • Rated power handling* 200 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.

Short data

Usage as Woofer
Power Handling 200 Watt
Impedance 4 Ohm
Frequency from 20 Hz
Max. Frequency 1 kHz


Overall dimensions 290 mm
Baffle cutout 249 mm
Depth (Total) 84.6 mm
Front material Alu mounting ring
Frame Material Aluminium diecast
Membrane Type Cone
Membrane Surround Rubber
Membrane Material Alu / Magnesium
Dustcap Material Aluminium
Voice coil Ø 75.5 mm
Voice coil height 30 mm
Magnet-weight 3.43 g
Magnet-inductance 1 T


Resonance fs fs: 22 Hz
Mechanical Q Qms: 4.5
Electrical Q Qes: 0.51
Total Q Qts: 0.46
Equivalent Air-Volumen Vas: 54 Liter
DC-Resistance Re: 3.2 Ohm
Mech. Compliance Cms: 0.39 mm/N
Moving Mass Mms: 134 g
mech. Resistance Rms: 4.1 kg/s-¹
Max. Excursion +/- Xmax: 12 mm
BL Product Bl: 10.8 N/A
Membrane Area Sd: 312 cm²
Sound pressure dB: 86 SPL

Frequency (EN)

Technical Drawing (EN)

PDF-Product information

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