The amps with cloth-covered wire on the transformers go for more. Otherwise the chassis must not be rusted.
These amps have plenty of bandwidth and fixed up properly will give any Mac or tube Marantz a run for its money. The output transformers in the ST-70 work very well.
The amps can be monostrapped, doubling the output power. Instructions on how to do so are in the ST-70 manual.
These amps have plenty of bandwidth and fixed up properly will give any Mac or tube Marantz a run for its money. The output transformers in the ST-70 work very well.
The amps can be monostrapped, doubling the output power. Instructions on how to do so are in the ST-70 manual.