LOL, holy cow, wow... Maybe I wasn't clear enough with that old post, LMAO!!!
First of all, the R4 can easily handle whatever levels you throw at it, just flip the line-in switch and you're golden. So, all the talk about overloading completely missed the point. And, if you read my point about in-line pads: "I do, at times, run my mics (or the SBD) through some switchable pads that have -15, -20, -25, and then run mic-in on them, but I try to avoid putting those in the signal path if I don't have to." I say I try not to, but as anyone who's made a ton of matrix recordings knows, you don't always have control over what you're given, and sometimes the FOH is an arse and won't lower your signal. A pair a in-line pads will solve that issue right quick, and that's an issue pretty much any recorder you mention could run into in the field, which is why pads are recommended in the official TS Matrix Guide, LOL. That is really a worst case scenario, which pretty much NEVER happens.
As for the mic's pad "adding noise", someone also missed my point on that, which was, I'm specifically choosing b/w the noise (and coloring) of the pads vs. the noise in the R4's preamps. See, you're thinking about it wrong I think. I run the -10db pad on the mic because in MANY MANY cases that's all the headroom I need to run mic-in on the box. What does mic-in get me? Less of a need to increase gain on the R4 pres. See, in many situations, if I didn't run with the mic's -10db pad, then I'd have to run LINE-IN instead, meaning I'd also probably have to increase the gain on the pres significantly more. So, you see, it's my way of deciding between noise from the pre or the so called noise from the pad (and I doubt the pad on the 480 introduces that much noise). And for anyone pointing at this a downfall of the R4, I call BS. Most of you tapers out there record to line-in on your units anyway, because mic-in would overload! So, this is actually an ADVANTAGE as far as I'm concerned because I can actually run mic-in at times.
Finally, I've got to admit, I find it personally HILARIOUS that my post basically talking about how I like the R4, even a stock R4, got used as a proof point for how "bad" it is, LOL! Well, I guess that's one way to make the point.
FWIW, I think using my technique could also be applied to other "all in one" units to equally beneficial use. The point is to use as little pre gain as possible, and to take advantage of as much of the signal coming off the mics as possible. Now, one could argue about adding in the pad, but you have to compare that to the alternative in those situations, which is you might have to run line-in and add significant gain. Maybe if you had a V2/V3 it wouldn't matter, but for the other all-in-one boxes out there, I'm not so sure riding you're gain way high won't add MORE noise than the pad running into mic-in.
I had some other thoughts from the comments above, but now I forgot them, heh...