Steve House
Veteran
My point wasn't that you should use an RE20 for ADR but that going out of your way to match the production mic is probably a waste of effort. The more work you are going to do on the ADR the less it matters ,providing that the ADR mic has at least as good a spectrum as the production mic.
So for instance if some crazy person with a body builder boom op used a large diaphragm condenser for production you are not going to get away with a small thin sounding mic for ADR. But the reverse can work fine IF you really edit/ mix the sound in post.
I think it depends oin why you're doing the ADR to begin with. If you're going to replace the entire speech then matching is not an issue. But if you have one bad line out of an entire speech that was ruined by someone dropping something on the set so your ADR is one sentence that needs to be intercut within a dozen others by the same character, then matching timbre and tone becomes very important.