Precision Power Powerclass Subwoofers
PowerClass® subwoofers offer many of the same state of the art features as the flagship DCX product, but with more modest power handling and price targets. The heavy gauge steel baskets are tooled to reflect the same cutting-edge industrial design as DCX, while supporting very good excursion driven by less massive conventional motor assemblies. PowerClass subs use the same, ultra-rigid foamed polypropylene cone technology, a good match for the DCX coaxial or component speakers. Their power handling limit is a very strong 500 watts peak, for use in systems with the smaller PCX amplifier models. These subwoofers offer a strong combination of competition-grade performance and good looks, making them a good choice for most mobile audio enthusiasts.
Features:
Heavy gauge deep draw steel basket with proprietary PrecisionPowerfi design
Excellent SQ performance in small sealed or vented enclosures
Tooled rubber wrap-gasket for air-tight seal in front or rear mount applications
Dual 2 or dual 4 ohm models in 10″ and 12″ sizes
Peak power handling 500 watts
Specifications:
| Model Number | PC102 | PC104 | PC122 | PC124 |
| Thiele/Small Parameters | ||||
| Fs (free-air resonance, Hz) | 40.33 | 41.45 | 35.44 | 22.5 |
| Vas (equivalent compliance, cu. ft.) | 0.576 | 0.634 | 1.51 | 3.56 |
| Vas (equivalent compliance, liters) | 16.33 | 17.96 | 43.01 | 101.05 |
| Qms (Q, mechanical) | 6.98 | 6.59 | 6.5 | 5.78 |
| Qes (Q, electrical) | 0.85 | 0.88 | 0.82 | 0.55 |
| Qts (total driver Q) | 0.76 | 0.77 | 0.73 | 0.51 |
| Re (DC resistance, ohms) | 3.5 | 6.75 | 3.75 | 7.8 |
| Z (nominal impedance, ohms) | 4 | 8 | 4 | 8 |
| Le (inductance, mh) | 1.81 | 2.77 | 1.95 | 2.91 |
| Efficiency (1W @ 1M, dB) | 82.89 | 83.47 | 85.57 | 85.03 |
| Xmax (one way linear excursion, in.) | 0.39 | 0.55 | 0.39 | 0.55 |
| Xmax (one way linear excursion, mm) | 10 | 14 | 10 | 14 |
| Pe (continuous power handling, watts) | 250 | 250 | 250 | 250 |
| Peak power handling (music, watts) | 500 | 500 | 500 | 500 |
| Mms (total moving mass, grams) | 157.59 | 137.59 | 176.67 | 186.87 |
| Cms (mechanical compliance, mm/N) | 99 | 109 | 114 | 268 |
| Bl (motor strength, Tesla-M) | 12.83 | 16.56 | 13.39 | 19.28 |
| Sd (effective radiating area, sq. m.) | 0.034 | 0.034 | 0.051 | 0.051 |
| Sd (effective radiating area, sq. in.) | 53.16 | 53.16 | 80.29 | 80.29 |
| Frequency range (Hz) | 45-2.5k | 45-2.5k | 40-2.5k | 40-2.5k |
| Energy Bandwidth Product (EBP) | 47.45 | 46.76 | 43.22 | 40.91 |
| Model Number | PC102 | PC104 | PC122 | PC124 |
| Driver Physical Dimension | ||||
| Mounting hole diameter (inches) | 9.7 | 9.7 | 11.3 | 11.3 |
| Mounting depth (inches *) | 5.5 | 5.5 | 6.25 | 6.25 |
| Basket diameter (inches) | 10.65 | 10.65 | 12.5 | 12.5 |
| Model Number | PC102 | PC104 | PC122 | PC124 |
| Recommended Enclosures | ||||
| Typical sealed enclosure (cu. ft.) | 1 | 1.15 | 1.45 | 1.55 |
| SPL sealed enclosure (cu. ft.) | 0.42 | 0.5 | 0.95 | 0.81 |
| Low Qtc sealed enclosure (cu. ft.) | 1.75 | 2 | 2.75 | 3 |
| Vented enclosure (cu. ft.) | 1 | 1.25 | 1.5 | 1.5 |
| Port tuning frequency (Hz) | 45 | 45 | 45 | 45 |
| Port diameter (inside, in.) | 3 | 3 | 4 | 4 |
| Equivalent square port (in.) | 2.65×2.65 | 2.65×2.65 | 3.54×3.54 | 3.54×3.54 |
| Port length (in.) | 7.17 | 5.13 | 8.06 | 8.06 |
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