Before you set the bias on an older amp (or even run it for that matter)!!

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In Reply to: Bias for Marantz 8b posted by 41kellymack on December 13, 2016 at 20:04:14:

-make sure that the selenium rectifier in the bias supply has been replaced!

It is unwise in the extreme to operate the amp unless all the filter capacitors in the power supplies have been replaced. If they have not been replaced recently, the power transformer in the amp is at risk of failure due to overheating.

The amps will also sound quite a bit better after the filter caps are replaced.

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Follow Ups Full Thread

Topic - Bias for Marantz 8b - 41kellymack 20:04:14 12/13/16 (5)

Before you set the bias on an older amp (or even run it for that matter)!! - Ralph 09:49:53 12/14/16 (0)

RE: Bias for Marantz 8b - Steve O 06:00:45 12/14/16 (1)

RE: Bias for Marantz 8b - 41kellymack 06:40:05 12/14/16 (0)

Marantz 8b User Manual... - RadioWonder 03:24:43 12/14/16 (0)

Take a look at this one... - kootenay 20:23:11 12/13/16 (0)

Follow Ups

Before you set the bias on an older amp (or even run it for that matter)!! - Ralph 09:49:53 12/14/16 (0)

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