ZX450 op amp partial replacement when used in bypass cross

[zorrobf2]

Hello,

I already ask to Cecil with PM but he doesn't read my msg therefore I submit my question in this topics.

I would partially replace actual OP AMP used in my ZX 450 V2 with better ones, what OP AMP I have to replace if the Crossover is configured in bypass mode, only OP AMP installed on Mainboard or also some of OP AMP installed in the crossover card ?

Thanks and regards

[Bfowler]

here is cecil's email address. i dont thinki can help much with that question

scbezjak (at) sbcglobal (dot) net

(didn't want to just paste it so he wont get spammed)

[zorrobf2]

Many Thanks