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This unit was used for in-home auditions. In like-new condition, used for maybe 150 hours.
The XA-25 amplifier is a special new design, and it follows that it has a story. You may understand that my nearly fifty years with power amplifiers has been an uneven progression towards the machine beauty that is the inspired mix of simplicity and performance, judged not only by measurements but also subjectively by listening to recorded music.
| Class | A(Integrated) |
| Remote | Yes |
| Gain | 26 dB |
| Inputs | 3 RCA |
| Output Power | 25 Watts rms @ 8 ohms; 50 Watts rms @ 4 ohms |
| Distortion | 0.1% @ 25 Watts, 8 ohms, 1 kHz |
| Class A Envelope | 50 Watt peak for 2, 4, or 8 ohm load |
| Bandwidth | DC to -2 dB @ 100 kHz |
| Noise | Less than 150 μV output, unweighted 20 - 20 kHz |
| Damping Factor | 500 |
| Slew Rate | 100 V /μS |
| Input Impedance | 48 kOhm |
| Peak Current | 10 Amp output( 200 Watt peak into 2 ohms) |
| Protection | Shutdown at 10 amps output |
| Idle Power Draw | 2.3 Amps @ 120 VAC ( 275 Watts) |
| Dimensions | 17" W x 17.9" D x 6" H |
| Weight | 51 lbs |