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Sundown Audio SIA 1250D is Sundown Audio's latest and greatest intelligent full bridge amplifier, the sundown SIA 1250's power supply is built stronger, heatsink is heavier, and the SIA 1250's feature intelligent low voltage technology protecting the amplifier from typical full bridge malfunction. The SIA 1250 also runs cooler because of Sundown Audio's latest fan upgrades.
Smart Cooler (Fan powered by temperature or audio, with 3 speeds)
| Brand | Sundown Audio |
| number of channels | 1 ch |
| max output power | 14.4vdc - 1 ohm 1250w rms |
| Power Output 1 | 1Ohm Mono: 1250W RMS |
| Power Output 2 | 2Ohm Mono: 1250W RMS |
| Power Output 3 | 4Ohm Mono: 800W RMS |
| input sensitivity | 200mv |
| signal to noise ratio | 108 db |
| frequency response | 10hz 20khz (-3db) |
| hpf | 10 to 1khz (-12db/8) variable |
| lpf | 40hz to 20khz (-12db/8) variable |
| bass boost | 0 to 12db (50hz) |
| thermal management | smart cooler ( fan powered by temperature or audio, with 3 speeds) |
| input impedance | 56k ohms |
| protection system | output short / high /low supply voltage / thermal protection |
| minimum supply voltage | 9vdc |
| maxium supply voltage | 16vdc |
| Parts Warranty | 1 Year |
| Labor Warranty | 1 Year |
