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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