Meisterkleef,
You are correct in this sounds like a relay problem. If the amps are being overdriven or have poor ventilation they may thermally shut down. The MC2505 does not have power guard as it was not invented until the MC2205 by Ron Evans, the current head of McIntosh engineering.
All Mc amps have the sentry monitor circuit which will protect the amp if the load exceeds the safe operating area of the output transistors. A defective speaker or one with a shorting voice-coil will trigger this also.
Thanks,
Ron-C
You are correct in this sounds like a relay problem. If the amps are being overdriven or have poor ventilation they may thermally shut down. The MC2505 does not have power guard as it was not invented until the MC2205 by Ron Evans, the current head of McIntosh engineering.
All Mc amps have the sentry monitor circuit which will protect the amp if the load exceeds the safe operating area of the output transistors. A defective speaker or one with a shorting voice-coil will trigger this also.
Thanks,
Ron-C