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315 SWR 315 SWR 39 134 PPX AL 4L 8 ohm - Order ID: 831857 The ultimative 12" subwoofer driver with an over-sized magnet (1.3 kg) and a heavy voice coil securing a clean, fast, and dry bass performance even at high volumes. Nothing is spared in this driver. Highly recommended for surround sound systems and THX systems. |
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| 315 SWR | |||||||
| Thiele Small parameters: | Free air | Common | Baffled | ||||
| Nominal impedance | Zn | (ohm) | 8 | ||||
| Minimum impedance/at freq. | Zmin | (ohm/Hz) | 6.3/124 | ||||
| Maximum impedance | Zo | (ohm) | 46.9 | ||||
| DC resistance | Re | (ohm) | 5.5 | ||||
| Voice coil inductance | Le | (mH) | 2.8 | ||||
|
Capacitor in
series with 8 ohm (for impedance compensation) |
Cc | (µF) | 24 | ||||
| Resonance Frequency | fs | (Hz) | 24.0 | 22.9 | |||
| Mechanical Q factor | Qms | 3.72 | 3.90 | ||||
| Electrical Q factor | Qes | 0.49 | 0.52 | ||||
| Total Q factor | Qts | 0.44 | 0.46 | ||||
| F (Ratio fs/Qts) | F | (Hz) | 50 | ||||
| Mechanical resistance | Rms | (Kg/s) | 3.25 | ||||
| Moving mass | Mms | (g) | 80.2 | 88.2 | |||
| Suspension compliance | Cms | (mm/N) | 0.55 | ||||
| Effective cone diameter | D | (cm) | 25.7 | ||||
| Effective piston area | Sd | (cm²) | 520.0 | ||||
| Equivalent volume | VAS | (ltrs) | 210.0 | ||||
| Force factor | Bl | (N/A) | 11.6 | ||||
|
Reference
voltage sensitivity Re 2.83V 1m at 124 Hz (Measured) |
(dB) | 89.3 |
| Magnet and voice coil parameters: | |||||||
| Voice coil diameter | d | (mm) | 39 | ||||
| Voice coil length | h | (mm) | 26.0 | ||||
| Voice coil layers | n | 4 | |||||
| Flux density in gap | B | (T) | 0.99 | ||||
| Total useful flux | (mWb) | 1.52 | |||||
| Height of the gap | hg | (mm) | 8 | ||||
| Diameter of magnet | dm | (mm) | 134 | ||||
| Height of magnet | hm | (mm) | 22 | ||||
| Weight of magnet | (kg) | 1.28 |
| Power handling: | ||||||
| Long term Max System Power (IEC) | (W) | 220 | ||||
| Max linear SPL (rms) / by power | (dB/W) | 110/170 |
Measuring
methods and conditions are stated in Peerless Standard for Acoustic
Measurements (PSAM)
venerdì 20 giugno 2008