Specifications
Performance
| Model: | C8 | C10 |
| C12 |
| C15 |
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| Nominal Impedance [Zn], ohm | 4 or 8 | 4 or 8 | 4 or 8 | 4 or 8 | |||
| Resonance Frequency [fs], Hz | 40.2 | 29.4 |
| 26.5 |
| 21.7 |
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| Sensitivity [SPLo], dB @ 1W, 1m | 85.6 | 87.3 |
| 89.1 |
| 90.2 |
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| Effective Piston Area [Sd], in2 (m2) | 31.9 (.0206) | 57.4 | (.037) | 82.5 | (.0532) | 132.7 (.0856) | |
| Power Handling Watts, Peak (RMS) | 200 (100) | 300 (150) | 300 (150) | 500 (250) | |||
| Effective Frequency Range, Hz | |||||||
| Effective Excursion [EXmax™], in (mm) | .34 (8.76) | .38 (9.76) | .38 (9.76) | .45 (11.53) | |||
| DC Resistance [Re], ohm | 3.98 | 3.70 |
| 3.69 |
| 3.32 |
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| Voice Coil Inductance [Le], mH | 2.40 | 3.15 |
| 2.90 |
| 3.44 |
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| Voice Coil Diameter [d], in (mm) | 1 3/8 (35.5) | 1 5/8 (40.5) | 1 5/8 (40.5) | 1 13/16 (45.5) | |||
| Voice Coil Length [h], in (mm) | .85 (21.5) | .99 (25.2) | .99 (25.2) | 1.22 | (31.0) | ||
| Mechanical | 10.00 | 9.65 |
| 9.61 |
| 11.20 | |
| Electrical | .544 | .473 |
| .447 |
| .397 |
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| Total | .516 | .451 |
| .427 |
| .383 |
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| Force Factor [BL], Tm | 9.45 | 11.32 | 12.50 | 15.32 | |||
| Equivalent Volume [Vas], ft3 (L) | .69 (19.54) | 2.27 | (64.38) | 4.50 | (127.65) | 9.61 | (272.33) |
| Moving Mass [Mms], oz (g) | 1.70 (48.33) | 3.13 | (88.8) | 4.01 | (113.57) | 7.38 | (209.31) |
| Net Displacement, in3 (cc) | 38 (620.0) | 60.0 | (982.3) | 104.9 (1718.6) | 198.7 (3256.8) | ||
| Outer Frame Diameter, in (cm) | 8 1/2 (21.6) | 10 11/16 (27.1) | 12 1/2 (31.8) | 15 7/16 (39.1) | |||
| Hole | 7 1/16 (18.0) | 9 1/4 (23.5) | 11 1/8 (28.3) | 13 7/8 (35.2) | |||
| Mounting Depth, in (cm) | 4 (10.2) | 4 15/16 (12.5) | 5 3/4 (14.6) | 7 3/8 (18.7) | |||
| Magnet Weight, oz (kg) | 25 (.71) | 33 (.936) | 45 (1.28) | 75 (2.13) | |||
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| Measurements based on 4 ohm voice coil models. |
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4 |
| Comp Subwoofers |
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