A150.4, A300.4 and A500.4 are compact, light and powerful high voltage Class-D amplifiers dedicated to fixed installations. They respectively deliver 150W x 4, 270W x 4 and 480W x 4 on 4Ω loads.
| MODEL | A150.4 | A300.4 | A500.4 | |
| Power (Both channels driven) | 2Ω (EIAJ) | 360W x 4 | 450W x 4 | 800W x 4 |
| 4Ω (RMS) | 150W x 4 | 270W x 4 | 450W x 4 | |
| 8Ω (RMS) | 90W x 4 | 150W x 4 | 250W x 4 | |
| Bridge Mono Mode | 4Ω (EIAJ) | 720W x 2 | 900W x 2 | 1600W x 2 |
| 8Ω (RMS) | 300W x 2 | 360W x 2 | 900W x 2 | |
| Input Sensitivity (Limiter Off) | 0.9 - 1.1V (+0/-1dBv) | |||
| Input Impedance | 20kΩ balanced or 10kΩ unbalanced | |||
| Frequency Response (At 10dB below Rated Output Power) | 20Hz~20kHz (+0/-1dB) | |||
| Voltage Gain | 28 (+/-0.5dB) | 30 (+/-0.5dB) | 33 (+/-0.5dB) | |
| THD + N (1kHz 1/8 Rated Power, A-Weighted) | <0.1% | |||
| S/N Ratio (Ref. 1kHz, A-Weighted) | > 96dB | |||
| Crosstalk (Below Rated Power) | > 70dB | |||
| Damping Factor (1kHz, 8W) | > 200 | |||
| Power/Output Circuity | Switching Power Class-D | |||
| Protections | Full short circuit, open circuit, thermal, ultrasonic, and RF protection stable into reactive or mismatched loads, turn ON/OFF, muting, tried crowbar | |||
| Controls |
Front: On/Off Power Switch, Volume Channel A, B, C, D - Rear : 8 preset modes |
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| Indicators |
POWER: 1 blue LED - PROTECTION: 4 red LED - SIGNAL: 4 green LED - CLIP 4 red LED |
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| Connectors |
Inputs: Euro block - Outputs: Euro block |
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| Power Supply | AC: 110-120V or 220~240V 50/60Hz | |||
| Dimension (W x D x H) | 483 x 360 x 44 mm | |||
| Weight | 4.6 kg | 6.2 kg | 6.3 kg | |
