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General| RMS Power per channel @ 4 Ohms | 150 W |
|---|---|
| Bridge mode power @ 8 Ohms | 300 W |
| Frequency Response | 20 Hz - 20 kHz |
| THD + Noise | < 0.1% |
| Signal to Noise Ratio | > 100 dB |
| Voltage Gain | 32 dB |
| Damping Factor | > 200 |
| Input Sensitivity | 1 V |
| Protection | Thermal, short circuit, DC |
| Connectors Input | XLR |
| Connectors Output | Binding posts, Speakon |
| Cooling | Convection |
| Input Impedance | 20 kΩ |
Details the amplifier's basic structure, push-pull AB class, and NE5534 OpAmp core.
Explains bias current stability, Zobel network, DC offset, and protection circuitry.
Covers ANTICLIP, temperature control, and STAND-BY circuits for amplifier operation.
Service bulletin on replacing the volume potentiometer with a new part code.
Initial checks of the unit's connections, power switch, signal generator, and loads.
Tests channel output sweep, voltage, and phase relationship with input signals.
Verifies thermal protection relay, LED indicator, and cooling fan operation.
Visual inspection of mechanical parts and 24-hour burn-in test.
Checks sound quality, potentiometer smooth operation, and terminal short-circuit.
Details power output at 1kHz THD for various channel configurations and loads.
Lists THD+Noise, IM distortion, damping factor, slew rate, crosstalk, sensitivity.
Includes power consumption, dimensions, and weight of the unit.
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