ConclusionThe PA2500D is certainly a powerful subwoofer amplifier. Its feature set and output capabilities allow a flexible and powerful system to be built. The build quality is good and should provide long lasting service. The 1ohm ability of the amplifier is also a plus given the nature of the application of this unit.
| Gain range: | Min 23 dB | Max 41.1 dB |
| Damping Factor @100 Hz 4ohm load: 99 |
| Max Power just under clipping 100 Hz, | 4O hms 13.8V: s | 625 Wrm |
| 2O hms 13.2V: | 1118 Wrms |
| 1O hm | 1369 Wrms |
| T.H.D. 4ohms, 100 Hz | .125% @20 Vrms
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| .082% @40 Vrms
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