Depends on the amp.

TBH loops are overrated though.
Everyone is entitled to an opinion.

Feel free to express yours so I can make an informed judgement about how stupid you are.
series effects loop wouldn't be hard if you have room. parallel effects loop will need a buffer/driver for it.
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Quote by Darkflame
amp is an orange ad30

overrated or not, the amp doesn't have reverb and it's gonna be my gain amp (a/b setup) so i'm gonna need it to share the delay and reverb (and modulation) with the effects loop of the fender twin

In that case running the effects out front before your A/B switcher would be heaps simpler. You're going to have to A/B the reverb separately (or with sequential logic from the first A/B) if you use fx-loops.
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