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tweak rotel pre amp
tweak rotel pre amp
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Old 11th February 2005, 07:51 PM   #1
user_one is offline user_one  France
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Default tweak rotel pre amp

Newbie in DIY, i'd like to try some modifications on a Rotel RC 971 pre amp. First, change the AD 707 opa for a 825 on, the JRC's (they seems poor quality), the pot for an Alps one and the transformer for a toroid unit.
Does anyone made those modifications on this model ? (yeah i know, i know.... it's not a top product but ......) I also need the values of the tranformer, if anyone has the manuel service ? Well any advise will be welcome.

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Old 11th February 2005, 11:19 PM   #2
ericpeters is offline ericpeters  Netherlands
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I had a RC 980 and swapped the JRC in the phono stage for OPA2134. This was a huge improvement. You need to put bypass caps across the power suplly pins.
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