Anyone know the Superphon 400 S? - diyAudio
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Old 26th August 2009, 10:31 PM   #1
mjarve is offline mjarve  United States
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Default Anyone know the Superphon 400 S?

Looking for service info, or at least the alignment procedure for it. Sounds terrific, but I bought it second hand, and I imagine that after 20 years something needs adjusting.

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Old 27th August 2009, 05:47 AM   #2
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after 20 years needs complete rebuilding and recaping ...... also cleaning pots and switches is another thing .... and if it scratches out some music it doesnt mean that it plays "terrific" .....only instruments can tell you how nice it plays ( or a very expirienced ear ) a device 20 years old ( or more ) either from design point of view or from age point of view is almost guarantee that will have problems

read this
a vintage amplifier repair and upgrade manual
vintage amplifier repair/upgrade manual

regards sakis

Last edited by east electronics; 27th August 2009 at 05:49 AM.
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