SB Acoustics SB17CAC35-4 OHM Mid-Woofer, Ceramic

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SB Acoustics SB17CAC35-4 OHM Mid-Woofer, Ceramic

Features
  • Vented cast aluminum chassis for optimum strength and low compression
  • Geometrically reinforced ceramic 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
Specs
  • Nominal Impedance 4 Ω
  • DC resistance, Re 3.1 Ω
  • Voice coil inductance, Le 0.13 mH
  • Effective piston area, Sd 118 cm2
  • Voice coil diameter 35.5 mm
  • Voice coil height 16 mm
  • Air gap height 5 mm
  • Linear coil travel (p-p) 11 mm
  • Magnetic flux density 1.0 T
  • Magnet weight 0.54 kg
  • Net weight 1.56 kg
  • Free air resonance, Fs 29.5 Hz
  • Sensitivity (2.83 V / 1 m) 90 dB
  • Mechanical Q-factor, Qms 4.70
  • Electrical Q-factor, Qes 0.31
  • Total Q-factor, Qts 0.29
  • Moving mass incl. air, Mms 15.2 g
  • Force factor, Bl 5.3 Tm
  • Equivalent volume, VAS 37.8 liters
  • Compliance, Cms 1.91 mm/N
  • Mechanical loss, Rms 0.6 kg/s
  • Rated power handling* 60 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.

Short data

Usage as Bass-Midrange
Power Handling 60 Watt
Impedance 4 Ohm
 
Frequency from 29 Hz
Max. Frequency 3 kHz

Chassis-data

Overall dimensions 171 mm
Baffle cutout 144.9 mm
Depth (Total) 86 mm
Front material Aluminium
Frame Material Aluminium diecast
Membrane Type Cone
Membrane Surround Rubber
Membrane Material Ceramic
Dustcap Material Aluminium
 
Voice coil Ø 35.5 mm
Voice coil height 16 mm
Voice coil material CCAW
Air gap height 5 mm
Magnet Ø 100 mm
Magnet-weight 0.54 g
Magnet-inductance 1.0 T

Thiele-Small-Parameter

Resonance fs fs: 29.5 Hz
Mechanical Q Qms: 4.7
Electrical Q Qes: 0.31
Total Q Qts: 0.29
Equivalent Air-Volumen Vas: 37.8 Liter
DC-Resistance Re: 3.1 Ohm
Coil Inductance Le: 0.13 mH
 
Mech. Compliance Cms: 1.91 mm/N
Moving Mass Mms: 15.2 g
mech. Resistance Rms: 0.6 kg/s-¹
Max. Excursion +/- Xmax: 11 mm
BL Product Bl: 5.3 N/A
Membrane Area Sd: 118 cm²
Sound pressure dB: 90 SPL

Frequency (EN)

Technical Drawing (EN)

PDF-Product information

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