I am looking at the block diagrams of both original Zishan DSD and Zishan Z2
Zishan DSD
Zishan Z2
and I noticed that these two siblings has swapped opamps at their LFP and AMP stage (op275 at AMP section for Zishan DSD and op275 at LPF for Z2, and LM4562 = LME49720)
could someone with more technical knowledge chime in on how having these opamp swapped at LPF/AMP section would possibly affect sound (while design and optimization aside of course)?
I know swapping opamp at LPF stage does not affect sound too much, but I still got a LME49860 in my Zishan DSD for kicks, haha.
Zishan DSD

Zishan Z2

and I noticed that these two siblings has swapped opamps at their LFP and AMP stage (op275 at AMP section for Zishan DSD and op275 at LPF for Z2, and LM4562 = LME49720)
could someone with more technical knowledge chime in on how having these opamp swapped at LPF/AMP section would possibly affect sound (while design and optimization aside of course)?
I know swapping opamp at LPF stage does not affect sound too much, but I still got a LME49860 in my Zishan DSD for kicks, haha.