HM130C0
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Audiophile 5¼ inch / 130mm bass midrange drive unit featuring a woven carbon fibre cone, fully ventilated chassis / pole piece, edgewound flat copper voicecoil, high loss / high compliance rubber suspension. A superb performer, one of the finest small drive units of all time.
New old stock in original factory boxes - very rare.
| Resonant frequency (fs) | 46 Hz | Nominal impedance (Zn) | 8 Ω |
| Mechanical Q factor (Qms) | 3.60 | DC resistance (Re) | 6.2 Ω |
| Electrical Q factor (Qes) | 0.34 | RMS power handling | 70 W |
| Total Q factor (Qts) | 0.31 | Sensitivity (2.83V/1m) | 90 dB |
| Equivalent volume (Vas) | 18.1L | Chassis diameter (cropped) | 152 mm |
