Hi Zang,
I love it, too.
I replaced the opamps (OPA2134) in my KR Audio Preamp with LM4562. It was an very audible improvement.
The "secret" for the use of LM4562 in a preamp is the following structure: input - 1st gain stage - pot - 2nd gain stage - output
The single use like pot + gain stage or buffer isn't satisfying (to my ears).
I love it, too.
I replaced the opamps (OPA2134) in my KR Audio Preamp with LM4562. It was an very audible improvement.
The "secret" for the use of LM4562 in a preamp is the following structure: input - 1st gain stage - pot - 2nd gain stage - output
The single use like pot + gain stage or buffer isn't satisfying (to my ears).
I will try it later.
because i want the preamp driving lowZ headphones.this capability is very useful at live playing.
example:when i play my yamaha keyboard,i want monitoring the playback via a headphone.and the line out can work together.
as the datasheet shown,the lm4562 chip can drive complex loads,but it is no good for lowZ loading.so i do a circuit bending.
i have try a film cap direct across V+ to V- on some solid amp that is good.i will try it on this preamp later,thank you!
zang
example:when i play my yamaha keyboard,i want monitoring the playback via a headphone.and the line out can work together.
as the datasheet shown,the lm4562 chip can drive complex loads,but it is no good for lowZ loading.so i do a circuit bending.
i have try a film cap direct across V+ to V- on some solid amp that is good.i will try it on this preamp later,thank you!
zang
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