Will you share which one(s)? I had fun rolling opamps w/ my Eastern Electric Minimax dac - You could really achieve a wide range of sonic signatures with different chips.
I'd imagine i'ts too late in the design process but it would be super cool if users had the ability to swap em, or use the higher-end Burson etc. discreet opamps.
OPA1602, just like in the Maraschino monoblocks. They're pretty much "perfect
" up into the MHz range. Swapping with almost anything else will result in lower performance, but it's an interesting idea.... Altering the board voids the warrantee and you lose the ability to participate in future upgrades.
If we were to socket components, it would add to the signal path, and we don't want to do that. This is why we limited the features ---- to get the analog from the DAC chips to the output connectors through as little as possible. The entire distance from the DAC chips to the output connectors is less than an inch
We do entertain customization, so if you want different op-amps, we can probably accomodate you.
A note about demos.... All of our demos are inspected, cleaned, and re-tested, by the way. They are mostly from upgrades or shows, but we have bought back gear outright as well. This assures QUALITY. With performance at this level, we want everything to be just right.