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25th January 2012, 08:24 PM
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#1 |
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diyAudio Member
Join Date: Dec 2011
Location: San Antonio, TX
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Recap Rotel RC1070
When I got my pre from ebay, right away I noticed the right channel is stronger than the left. After some research I found that replacing the caps could correct this. I have decided to replace everything in the signal path. The pics are when I replaced the two main caps. A bit of a difference in size.
I have since powered it on and wow, what a difference in the sound. |
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28th January 2012, 06:16 PM
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#2 |
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diyAudio Member
Join Date: Dec 2009
Location: Md
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Modern caps are much smaller, and typically lower ESR and DF if you selected them carefully.
I was thinking about a separate preamp to have hanging around so I can set up testing easier. This looks like basically 3 op-amps. What do you think of it? |
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28th January 2012, 08:52 PM
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#3 |
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diyAudio Member
Join Date: Dec 2011
Location: San Antonio, TX
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This was my first time hooking up to an oscilloscope, but this is a screenshot of the output.
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