antichef
pornk rock
I'm pumped to have these two ACM 200 mics - I had ordered a 200 and a 300, and after the orders closed I was kicking myself for not getting a pair, but due to the swap of the 200 for the 300, I got one anyway
They sound pretty good, but a little lacking in the high end - I haven't done much testing yet. I immediately found myself thinking of the transformer swap I did on my other ACM ribbons, and how much improvement there was. I cracked open one of the 200s.
I saw an internal fiberglass board with what looks just like the transformers that I took out of the ACM2 and ACM3 mounted in it -- also on the board is what looks like a little SMT circuit, but it's been painted over with black lacquer, so you can't really tell what it is. It's "south" of the transformer, so to speak, and so my guess is that it's a phantom powered preamp, a-la a condenser mic, that takes the regular old ribbon mic signal from the regular old ribbon mic transformer and juices it up and sends it on its way.
If that's right, then I *should* be able to put a Lundahl or Edcor ribbon mic transformer in place of the existing one, right (provided I can make it fit)? I don't have time now to pull one of the ACM200 transformers, but Marik taught me how to measure the ratio, so I can do that and compare it to the one I pulled out of the ACM3. If they're the "same" (with some tolerance, of course), then I'm probably right?
They sound pretty good, but a little lacking in the high end - I haven't done much testing yet. I immediately found myself thinking of the transformer swap I did on my other ACM ribbons, and how much improvement there was. I cracked open one of the 200s.
I saw an internal fiberglass board with what looks just like the transformers that I took out of the ACM2 and ACM3 mounted in it -- also on the board is what looks like a little SMT circuit, but it's been painted over with black lacquer, so you can't really tell what it is. It's "south" of the transformer, so to speak, and so my guess is that it's a phantom powered preamp, a-la a condenser mic, that takes the regular old ribbon mic signal from the regular old ribbon mic transformer and juices it up and sends it on its way.
If that's right, then I *should* be able to put a Lundahl or Edcor ribbon mic transformer in place of the existing one, right (provided I can make it fit)? I don't have time now to pull one of the ACM200 transformers, but Marik taught me how to measure the ratio, so I can do that and compare it to the one I pulled out of the ACM3. If they're the "same" (with some tolerance, of course), then I'm probably right?