12″ SB34SWPL76-4 / Paper
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 coil former
- Long life silver lead wires
Additional information
Nominal Impedance | 4 Ω |
---|---|
DC resistance | Re 3.5 Ω |
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 | 85 dB |
Mechanical Q-factor | Qms 8.6 |
Electrical Q-factor | Qes 0.34 |
Total Q-factor | Qts 0.33 |
Moving mass incl. air | Mms 266 g |
Force factor | Bl 18.0 Tm |
Equivalent volume | Vas 78.5 liters |
Compliance | Cms 0.26 mm/N |
Mechanical loss | Rms 3.7 kg/s |
Rated power handling | 300 W |
Note | IEC 268-5, T/S parameters measured on drive units that are broken in. |
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