I must announce an excellent combo for up-and-coming headphone buyers!
I still think that the JVC HA-RX700 is budget KING when you can find it for a decent price in the $30-40 range. Hell maybe even more. Seeing as I just gave my 3yo modded set to my GF and was gonna buy a new set as a backup...the price hiked up and availability went nil.
But back to the story, I couldn't stand her onboard audio though it's actually much better than expected pushing the HX700's it was still disappointing to even just my Auzen Forte's front speaker output...and the HP output was lightyears better.
Well I got her an Asus Xonar DG for $30-ish shipped...it shoed up, I installed it, I naturally hooked up the HX700 to the Front Speaker/HP Amped output directly on the card and was BLOWN AWAY. Between the power of the HP output (set the channels to 2, set the output to Headphone, then choose between 3 gain settings, I chose exciter >64Ohms...even tho the 700's are rated for 48ohms..) and the very capable eq...these two items were meant to be. If you go to head-fi.org and you read about mixing headphones and amps to get the right synergy...if I've ever heard good synergy, I'd say the JVC HA-RX700 + Asus Xonar DG 5.1 have it nailed. And when caught at the right time, you can have both at your front door for $70 shipped or so. You'd have to spend SOOOOOOO much more in order to defeat what these two items are capable of it wouldn't be worth most peoples times or budgets.
I currently just purchased the FiiO E9 Desktop HP Amp to see how it compared with my Auzen Forte's integrated HP amp...with my Denon D2000's I was actually dissapointed...it was a tad louder, but didn't feel like it was driving any harder though in theory it was supposed to have up to 10X the output power at certain resistance levels...depending on what spec sheet your read. Well I decided for shits and giggles to hook up my JVC HA-DX3's which I paid too much for years ago, gave them a couple months to blossom, was never really impressed as I'm too much of a bass head...I respect their treble and accuracy, but the bass was just extending low, but you could never feel it. The E9...woke them up big time...to the point they come close to competing with the D2000's. Though the D2000's are more universal bassy and the DX3's are more certain frequency range bassy...they have the extension but to even feel them punching bass is truly amazing. The E9 may not master the D2000's if you have a card like the Forte already...but if you don't, it may be very well worth your time if it can be found for around $90.
Just a couple things I figured I would report. I am debating picking up a set of Sony MDR-XB500's in April when they ship again to see just how big the bass is...but I MUST find a spare pair of JVC HA-RX700's first...
Word of advice to gamers, new headphone buyers...ditch the gaming headsets...get the Asus Xonar DG sound card while it's cheap...wait for the RX700's to come back down or get something else recommended in the price-range and be happy. It'll cost way too much to get even a little better and yet that combo is amazing compared to every gaming headset I've ever tried...mic's are cheap too...zalman clip-on and go.
Another note on the Xonar DG...I wanted to hook her speakers up...well I thought the DG was like the forte where only the output on the card itself was amplified...not the case...the DG amplifies the front hp output and is literally just as good to my ears. Put your speakers on the back, do your output settings, then plug your HP into the front..do your settings, gain, etc...it'll switch automatically w/o any issues thus far. I can't recommend any other sound card in that price range or even double that price.