The XP30 is pretty spectacular, particularly on sonics. It also has a couple of
features that I requested - dual sets of outputs with variable level adjustment
between them for bi-amping, low impedance output, and enough gain and
voltage swing to serve as the front end for a 150 watt output follower stage.
😎
Is it semisouth equipped?
The prototype photo had the tape in and out silk screening wrong.
Production is correct.
It worked correctly from the front when I tested it.
Production is correct.
It worked correctly from the front when I tested it.

Fantastic design. I love the dual mono with the controller integrating the two chassis. I am curious about a couple of things, and I understand if you don't want to answer. What kind of volume control did you decide to implement? Also, is it a unity gain buffer up to a certain volume control, or is there gain at all volume settings?
Thank you for taking the time to read my post. I understand if you cannot or don't want to answer, I am just curious about the decisions that you made to create a seemingly no holds barred statement preamp.
Aaron.
Thank you for taking the time to read my post. I understand if you cannot or don't want to answer, I am just curious about the decisions that you made to create a seemingly no holds barred statement preamp.
Aaron.
that can't be Papa's Ultimate Preamp 
even if I don't have any doubts in exemplar quality , it's obvious that every generation of Papamps is , well , simply better .......

even if I don't have any doubts in exemplar quality , it's obvious that every generation of Papamps is , well , simply better .......
The aux volume controls are Alps, the main is something else. The unity gain or pass through is just a setting on the volume control the circuit is always active with gain. More info is coming.
The aux volume controls are Alps, the main is something else. The unity gain or pass through is just a setting on the volume control the circuit is always active with gain. More info is coming.
I look forward to hearing more about the "something else". I understand if you can't say much yet. Thank you for taking the time to respond.
Aaron.
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