SB Acoustics SB34SWPL76-4 12'' Paper Cone
Features
- Long stroke design
- Linear high stability suspension
- Low damping rubber surround
- 3’’ copper voice coil
- Non-conducting reinforced fibre glass coil former
- Very stiff hard paper cone (made in-house)
- Vented cast aluminium chassis
- Large vented motor system and vented coilformer
- Long life silver lead wires
Specifications
- Nominal Impedance 4 ?
- DC resistance, Re 3.5 ?
- Voice coil inductance, Le 5.3 mH
- Effective piston area, Sd 458 cm2
- Voice coil diameter 76 mm
- Voice coil height 38 mm
- Air gap height 8 mm
- Linear coil travel (p-p) 30 mm
- Magnetic flux density 0.62 T
- Magnet weight 2.4 kg
- Net weight 7.68 kg
- Free air resonance, Fs 19 Hz
- Sensitivity (2.83V/1m) 85 dB
- Mechanical Q-factor, Qms 7.7
- Electrical Q-factor, Qes 0.33
- Total Q-factor, Qts 0.32
- Moving mass incl. air,Mms 264 g
- Force factor, Bl 18.3 Tm
- Equivalent volume, Vas 79 liters
- Compliance, Cms 0.27 mm/N
- Mechanical loss, Rms 4.1 kg/s
- Rated power handling* 300 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.
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