Just got HFI-580s...defective???

Hey all.  First time poster, short time lurker.  I'm hoping I can draw on the experience of some of you to figure out what I have going on.  First a back story:

I'm into HT and all types of music, and I love a good rumble (low-end Velodyne sub in a small room).  My wife, however, doesn't.  Also, we have two young boys, and it seems like the only time I have to watch movies or listen to music is when they're sleeping.  So you see the problem.

I've been wanting a decent set of closed headphones to solve this problem for a while, and the wife delivered for Christmas this year.  Problem is, she bought wireless Sonys (can't recall the model), and they were nothing but static.  Not blaming the phones per se...I do have a lot of wireless crap going on in here.  Just didn't work out.

I returned them and hopped over to Costco to pick up the V-Moda Crossfire LPs they had on sale for $80.  They looked awesome and were pretty comfy, but the bass was really overpowering and sloppy.  My bass tastes have always leaned toward the sealed-box, controlled, tight flavors, and these weren't it.  I read a bunch of opinions here that seemed congruent with what I was hearing.  So back to Costco they went.

I poked around here a little more and kept seeing the Ultrasone HFI-580s mentioned favorably.  A quick Google search led me to B&H Photo where they had them for $119 shipped, which is the top of my budget, so I ordered them.  They arrived today, and I was psyched to try them, but let down when I did.  The bass is just not there.  With the V-Modas I had to lower the bass to -2 (range is -6 to +6) just to listen.  With the 580s, +6 still isn't enough.  It's there, but anemic.  Tight, and controlled, but just lacking in a major way.  Eminem was completely unimpressive.  I hoped Maroon Five's Moves Like Jagger would rattle my head.  Nothing.  Zac Brown is good for some upright bass - another letdown.  Also, the high mids seem shrill and annoying - Sugarland's Stuck on You sounded ok at first, but when Nettles gets into her power vocals, it was like someone was stabbing my eardrums.  

They're plugged into a Pioneer VSX-517 HT receiver, and I'm listening to CDs played by a Panny BD-85 blu-ray player.  To reiterate - The V-Modas had to be dialed WAY down on the bass to make them listenable, but when they were they sounded decent (with sloppy bass), so it's not a receiver / player setting or lack of driving ability, it would seem.  

I've requested a replacement pair from B&H.  I can only hope that I got a defect / dud.  Most people call these basshead phones, but I have read a couple people say they thought the 580s had no bass, so maybe a few bad eggs make it out...?  Any thoughts?

A few hundred hours?  Damn...seems like a pretty big commitment. I don't think B&H would take them back after a couple weeks. Maybe I'll try it if the replacement set sounds the same...or maybe I'll just give up on these and try something else. So many rave reviews right out of the box, and mine sounded terrible. I just don't see it being anything other than a bad set. 

Thanks for the input. I did try them with my desktop (CSB x-fi card) with the same result. Even googled some dubstep expecting to be deafened. Nope. 

Something I thought of this morning - could ambient temperature have caused te problem?  They were shipped from NY to CT, and it's cold here. They were inside for a few hours...probably six hours at my last check. Might they need longer to warm up?  They didn't feel cold on my head...

I'm planning to go thru with the exchange and cross my fingers. If the replacement sounds the same I'll give them a couple days on repeat, and if they still don't perform I'll be looking for something else. 

It was probably in the mid 20s yesterday afternoon...I'm definitely swapping them. Fingers crossed for the second pair.