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Old 20th July 2013, 05:13 AM   #1
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Smile Drop-in replacement for JRC4558

I bought a car dvd recently. Everything is fine except ... the sound quality. For fun, I would like to upgrade the JRC4558 chips (and TDA7338 probably) on the circuit board to some better ones to see if there's any improvement. My question is, is OPA2132U a good drop-in replacement for it? What's the difference between OPA2132U and OPA2132UA?

Also, it seems there are many other chips that I could use, e.g. OPA2228, OPA2134, etc. Which one is better?

Any suggestions are welcome! Thanks!
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Old 20th July 2013, 07:13 AM   #2
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5532 will work like a charm ...Though termination of output filtering of output and configuration of the circuit will also play a very big role

meaning that 4558 may as well play properly if configured properly
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Old 22nd July 2013, 10:46 AM   #3
AndrewT is offline AndrewT  Scotland
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The best drop in replacement for a JRC4558 is, a JRC4558 !

Have you read about the potential pitfalls of opamp rolling?
Read some of the very informative Threads on this Forum.
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