The M-600 is a high‑power audio amplifier designed for precision amplification from DC to 20 kHz, capable of driving 70 V rms audio distribution systems without a step‑up transformer. It features a patented bridge circuit with 32 150 W transistors delivering up to 2 kW balanced output when two units are interlocked.
The manual covers general information, specifications, installation, operation, theory of operation, accessories, maintenance procedures, repair instructions, consumable materials, parts lists, and test equipment. It includes detailed wiring diagrams, safety precautions, and troubleshooting steps for technicians.
| Frequency range | DC to 20 kHz |
|---|---|
| Maximum balanced output (interlocked) | 140 V rms at >2 kW |
| Number of output transistors | 32 × 150 W |
| Cooling capacity | 1900 W |
| Typical power output (16 Ω load) | 16 Ω load |
| Typical power output (8 Ω load) | 8 Ω load |
| Typical power output (4 Ω load) | 4 Ω load |
The M-600 amplifies frequencies from DC to 20 kHz.
Two interlocked M-600 amplifiers can provide a 140 V rms balanced output at over 2 kW.
The M-600 uses a self‑contained forced‑air cooling system with a two‑speed fan and 1900 W cooling capacity.