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16th March 2010, 12:13 PM
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#1 |
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diyAudio Member
Join Date: Jan 2009
Location: Bombay [aka Mumbai]
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dual opamp replacement options
I have a vintage Technics amplifier - SU-V650 which uses the NEC μPC4570 opamp and I was wondering if replacing this with any other modern drop in replacement opamp would help improve the sound.
I have zero knowledge in electronics so any information that anyone would provide about possible opamp replacements to try will be passed on to my engineer friend to implement. A friend says he can give me the AD8066 opamp. Does anyone forsee any issues with replacing the existing opamp with this? Advice and suggestions are invited and also - Thanks in advance for all responses/suggestions that may come in! |
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16th March 2010, 12:36 PM
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#2 |
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diyAudio Member
Join Date: Sep 2007
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The AD8066 is more a video amp then audio. You can do much better IMO.
The LME49720 might be worth a look as top flight performer. Sonically I suspect even a TL072 would better the 4570. This kept everyone entertained for weeks  The best sounding audio integrated opamps The Best Sounding DUAL opamps
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16th March 2010, 12:37 PM
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#3 |
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diyAudio Member
Join Date: Jan 2008
Location: Virginia
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μPC4570 is a good OpAmp, it will be hard to get something better. Certainly AD8066 will NOT be better for your app, AD8066 is a fast OpAmp, good for digital/analog conversions (not you case) and noise is higher than what you have there.
Last edited by SoNic_real_one; 16th March 2010 at 12:40 PM. |
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