Stephen Murphy
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- Feb 3, 2004
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Quote:
I hope you will get an answer to this question. There have been many posts here saying how bad the Havana opamp approach is. It would be nice to see how to bypass it in pictures and also get someone's listening impressions of the difference before and after.
Hi.
I have bypassed the PCM56P chipset, as instructed, but there is almost no sound on the output (it requires to rise the volume at the amplifier at 100% and it is still too low). I am not surprised, because inserting a resistor of such a low value from signal to ground is decreasing it too much. If that resistor is needed, it will probably require more gain at the tube stage.
Here are the detailed steps:
1.- Remove R25 and R26
2.- Link pin 13 of the PCM56P chipset with the opposite extreme of R25, R26 (the one connecter to the tube grid).
3.- Connect the resistors (220R in my case) in between this point and Ground.
4.- Undo everything. This is not working.
I will appreciate any suggestion
I hope you will get an answer to this question. There have been many posts here saying how bad the Havana opamp approach is. It would be nice to see how to bypass it in pictures and also get someone's listening impressions of the difference before and after.