I just got a pair of active r5a's in this week. I like them
I am into Blues, Rock, and Country genres. I have only done some fast test mixing so far, and they have the flat responce I was looking for. I am not a teckie and not going to be able to talk all the jargon of monitor talk that some of you guys can do, but am just a guitar player that has just one test I do on a monitoring system for its worth.
My opinion/test is formed by how many times I have to make my rounds from my computer, then to my home stereo to see if sounds same, then to car to see if sounds same, then back to computer to make adjustments. The first mix out, it played same on home stereo and car stereo, as what I heard coming through them at original mix time. ..and that makes it worth every penny of my $329 I spent on them. With a 5" cone on the r5a's, they are not going to impress a hiphopper that wants to double them for a street party (grin) ..but if you are looking for accuracy in that price range, and recording across the whole EQ spectrum, I dont think anyone would be dissapointed in trying these out for a small to medium home studio setup.
As always though, buy with a money back option, just because I or anyone else says they are good or bad, only YOU can make that decision when applied to what you are wanting to accomplish.