B&W (Bowers & Wilkins) (or other 2nd monitor suggestions...)

I'm guessing you would hate me if I recommended NS10s.

I've heard a lot of good things about the new sonodyne SRP400's (big thread on the purple site comparing them favorably to some very high end speakers). $700 for a pair.

www.zenproaudio.com/sonodyne-srp-400

Supposedly the 400's, which have no DSP sound better than the 500's or 600's, which do.

We had a pair of B&W's at the old studio, and they are surely hi-fi, just not so good to do any kind of accurate mixing on, but we used them for mastering, worked pretty well for a big picture kind of sound. And they surely have a pretty top-end.

They just flatter IMO.... I tried mixing on them several times, but NS10's gave me a much better mix. That's just me, I mix better on cheaper monitors that are flat because I have ADD and when I'm admiring how incredible a speaker sounds it takes away my attention. My partner tried mixing on them several times too, but had a difficult time getting them to translate as well. Mastering is a different story though, I loved them for mastering and that's what we used them for. You can see them in this picture

That's just my opinion man.... For you it could totally different. The thing about B&W's is that if you get a set and it turns out you feel the same way you're not just limited to selling them to engineers, people in the hi-fi market love them too, so unloading them wouldn't be so hard if you had to. If you liked them and they worked really well for you then it's a big WIN.

For mastering they are great, really they are because you get a really nice big picture of what's going on. They are incredibly detailed on the top end, their bottom end is not what I'd really describe as being punchy or anything though, I always felt like they were a little sluggish, which for mastering was good for me. Honestly when it comes to monitors it's probably the one thing that all engineers have a flavor of the year on. I've had some expensive ones and I was enamored by them (PSI) but after a while I just didn't focus well. With the B&W's it was the same when I would attempt to mix on them.

I'm surprised no one mentioned the little speakers on top of the NS10's in that picture I mixed many a songs on those little speakers and when the mix was punchy on those you had it, I wish I could find some more of them, we bought them at Best Buy about 10 years ago. They are made by Yamaha, just can't remember what the hell they were called. See that's kinda what I'm talking about, for me, mixing on speakers that are not special yields a better mix for me. For some reason I have to have a lot of detail on the mid-range, the top end for me isn't so important when I mix, so my opinion on this could be skewed, maybe I shouldn't had commented because I would hate to be the reason you didn't pick something up that would work well for YOU. Just try them, you shouldn't have any problems unloading if you don't like them. Like I said, they are incredibly detailed on the top end, if that's what you're looking for then I can tell you they are surely that.

Man this....sooooo much this. I use the Dirac software, but my room is pretty good like it is, but just by flipping the Dirac on and flattening out what the speakers are sending out could equal I don't know how many thousands of dollars one might spend on searching for better translation. You should try the Demo of Dirac Jessie, just try it, if your room doesn't have any massive issues like the decay on a room mode, that software just blows you away. Not only does it fix issues in the low-end, but it also flattens out the high-end and for me no matter how expensive the speaker there's no way you can get that without either a.) perfect room b.) corrective software and a good room. If you have the ability to shoot your room and see what's going on in it you can figure out pretty quickly on whether investing thousands on speakers is going to get you anywhere. You've got PMC's, those are badass speakers dude, they should give you everything you want, and the Daytons are excellent to check on. 

IMHO put the money into the acoustics brother, it's not sexy, but it's incredibly important, more than anything else that has to do with listening and translation. If you can shoot your room and see the issues, put some money into treatment, shoot it again, see how much improvement, and then demo the Dirac and then shoot it, you'll be amazed, and you'll have a listening room that will benefit whatever speakers you want to put in it, and you won't be throwing money away.

I use a pair of B&Ws in my living room and they are amazing. Abbey Road has the big B&Ws and I found them phenomenal.