Posted by Wayne Parham [ 70.234.143.3 ] on July 01, 2007 at 14:33:12:
In Reply to: Re: Eico HF85... "persistent hum" posted by kraken on June 29, 2007 at 13:14:15:
You want a single point ground. If the main amp is grounded with chassis connected to the earth wire (third prong), then simply connect the chassis of the preamp and source components to the power amp. Measure the chassis of each with a meter first, because you want to make sure they are floating and not connected to the power line.
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