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Updates to Juli@ Follies Post WAAAY below...

I've the following info to my Juli@ Follies post below:

1. Info about one more regulator chip on the analog card which appears to power what appear to be the mixer chips, U24 and U26.

2. Info about the balanced outputs and the unbalanced and balanced inputs.

3. Info about the use of 5v on the digital card

4. Preliminary notes on where the outputs from the DAC go.


This all was prompted by:

1. I'm modifying a Juli@'s analog balanced outputs for another inmate, so I needed info on the balanced side.

2. I suspect there are some additional gains available by upgrading that last regulator chip that provides the negative rail to the mixer chips... the positive rail for those chips are covered by U10.

3. Replacing the output muting transistors with relay-based ones is a common modification for circuits such as this, providing some sonic gains.

4. I strongly suspect if one is using the Juli@ just as an output device, there are some serious sonic gains available by bypassing the mixers and output circuitry and taking the DAC output to a simplified and more direct output stage. I have this on my queue of Juli@ mods to try.

I hope this information will be useful for others!

Greg in Mississippi
Everything matters!


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  • Updates to Juli@ Follies Post WAAAY below... - GStew 10:46:58 10/11/09 (0)

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