SB ACOUSTICS SB12CACS25-4 4” 4ohm Ferrite Ceramic Cone CAC Midwoofer Loudspeaker

SB ACOUSTICS SB12CACS25-4 4” 4ohm Ferrite Ceramic Cone CAC Midwoofer Loudspeaker

Key Features:

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

SB12CACS25-4 Specifications:

• Nominal Impedance 4 Ω
• DC resistance, Re 3.1 Ω
• Voice coil inductance, Le 0.26 mH
• Effective piston area, Sd 50 cm2
• Voice coil diameter 25.4 mm
• Voice coil height 15 mm
• Air gap height 5 mm
• Linear coil travel (p-p) 10 mm
• Magnetic flux density 1.07 T
• Magnet weight 0.40 kg
• Net weight 0.92 kg
• Free air resonance, Fs 51 Hz
• Sensitivity (2.83 V / 1 m) 88 dB
• Mechanical Q-factor, Qms 4.89
• Electrical Q-factor, Qes 0.33
• Total Q-factor, Qts 0.31
• Moving mass incl. air, Mms 6.1 g
• Force factor, Bl 4.3 Tm
• Equivalent volume, VAS 5.7 liters
• Compliance, Cms 1.60 mm/N
• Mechanical loss, Rms 0.4 kg/s
• Rated power handling* 30 W

Why Choose Lean Business Audio?

50 years of experience of designing, building and supplying Home, Car and Professional Audio.

Huge stocks of leading loudspeakers and audio brands
KEF, Celestion, Eminence, WGS, Montage, BMS Speakers, Faital Pro, Eighteen Sound, Ciare

Low Worldwide shipping rates.
Free Delivery on selected brands with the UK.
Price matching.

For more information please contact us at: +44(0)1473 744089
Or Email us at: sales@lean-business.co.uk