OK, you win.
I don't understand why you're addressing my points at all? What are you fighting with me for, it's your question, I just did my best to help you out? My first line was that I hoped you would find someone who actually knows... Gee, the one guy that probably actually knows, from experience, Klaus, kicked you out of his forum page - even though his column is for "high-end mics" and the SM7 is among the highest-end dynamics on the planet(No accounting for elitism, ey?)! I was just trying to help. Sorry I rankled - I'm a born rankler - somebody's got to do it.
So let's rankle some more, ey! This can be fun! I expect you to rankle back(Along with anyone else who feels rankley, of course...).
I admit that I prefer the RE20 for such a mic, though I use a Beyer M99, 'cause I got it really cheap, brand new - it's OK. I worry about all the exposed foam on the Sm7's? I might get nervous and start to "pick" at it??? Most studios I'VE been in seem to prefer the Senn 421, most radio stations the RE20, but that's another story. I've seen SM7's, but not nearly so often...), but I have never heard that the SM7 was so desirous of more gain than a "normal" preamp could provide - sorry! I admit most of the studios I go to have some fairly serious pre's, maybe no prob? My own DBX 376 offers, what, 80 db of gain! Hate to turn it all up, flat-out though, as I don't know if ANY of it is, truly, "clean"..? I'd rather have a Millenia Media Origin and a great LDC - for ME! Oh well, gets the job done. Certainly anywhere I've seen SM7's, they just run through whatever pre the studio/station happens to have - maybe not so good, eh? I don't know?
Me? I would think anything Drawmer would be pretty good, quality-wise(Though I think the 1960 looks a bit "busy", knob-wise, ya'know? So does the Origin...) with more than enough gain to handle any dynamic you could throw at it. How much gain does the MX60 offer? Does it seem "clean" all the way up? How much gain do you need?
I just put on my glasses, got down on my knees and looked. The DBX is set at around +48 on the input and about +8 on the output(I have a little compression in-beteen), this for the M99 - that DOES seem like alot, no? Think the 7 would need more than that? Maybe? I don't know...
My biggest "point to ponder" to you would be:
IF IT CAN'T - if your pre won't work with the SM7, what are you going to do?????? Buy another pre? Buy another mic? If you WANT an SM7 and you get it and your pre can't handle it, OR if someone/anyone says it won't handle it, what will you do??? Me? I'd be buying the Shure(That's what I wanted) and be looking for another pre soon after I bought the Shure, if it really didn't work. No biggie... gotta' do what you gotta' do.
There are lots of ways to try one out(Every big studio you've ever been in has one, take your pre to one of them and try it! They're nice people, they'd like to know, too!). There are lots of ways to "treat" your room which are not permanent or expensive(Gobo anyone? Used office supply "cubicle" panels?), you can even buy or build something to go around just the mic itself(I just saw some semi-circular thing in a magazine?), and of course you can always turn down the pre and speak-up, to minimize the effects of "the room", but..? You can't, right? Tough sleddin'...
If you don't believe the companies you buy things from are at least reasonably honest, what in the world do you buy from them for??? Drawmer might say "fine for an SM7" or they might say "no, but THIS model pre would be great!" No??? Same for Shure, I would hope??? No? We see things differently, here... If it's that "famous" a deal, these folks should know and not mind telling you - even telling you why. Wouldn't it be worth an email? Least if they blew you off, you'd know not to buy anything they sell in the future..?
You know what I might do? I might just run down to the store and pick-up an SM57 or 58, take it home and try it. Just to see if it DID help with minimizing my room??? You can always use a 57 or 8 somewhere? And it's cheap. If it "works" great! THEN work on the 7 and it's potential problems.
Again, sorry to rankle(I enjoyed it!). I'll let you to your quest,
TG