Which amp will you use? Any recommendations? The 4580 I think any opamp with more slew-rate will be better, I'm thinking on OPA2134 only for the preamps, and maybe 5532 for the rest of the channel strip. Yes, I'm a bit crazy, but all these years I've been hesitant in op-amp changes and now I have the chance to test A/B on several channels. Each channel uses 1/2 of the dual opamp, so maybe a single opamp in a small pcb adapter will do the job. I'm planning on substituting the opamps in the preamp at first.Ĭandidates are bipolar 5532, that I've seen allen and heath uses on some preamps. However the main issue is that the op-amps (all of them are 4580 as far as I can tell) are in "comb" format sil-8, so some kind of adapter will be necesary. I know that visual inspection will make that useful, since the mackie 24/8 has some mistakes and there are subtle differences in the design.
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