I tried all 3 house amps. There is a background hissing sound thats very loud. When I plug it into my laptop, iPhone, or iPod I don't here it. How are you hooking your house amp to the headphones??? I did it with an RCA (white, red, yellow cord) from the TV to my house amp then I plug my cans into the house amp.
I only really listen to RnB/Hiphop/dubstep. I was comparing the DT770's to my Atrio MG7's. The Dt's really can't keep up. But to be fair I did just get the DT770's like 2 days ago and there's been only a few hours of burn in so the sound should get better. It's just that its the 250 OHMS ones and I have nothing to really drive them..
i wont speak of burn in, no need opening that up... lets just say i didnt need any..............
about not having anything to drive them with, these are pretty efficient cans, your phone will drive them fine, just not to their fullest potential.
anyway, i have 2 portable amps, fiio e11 and jds labs cmoy. when using these i plug them into the computer headphone jack with a regular audio cable. for the (ancient, really bad) speaker amp i use an rca cable, it has black and yellow on one end, and a 1/8 inch jack on the other end, which also goes into my computer headphone jack and none of the above give me any hiss whatsoever.
i was also disappointed with the bass at the beginning, but then i started to notice the sub bass, and the detail in the bass range and it dawned on me that im getting alot more bass than the monotone thump i got with my cheapy iems until then, i was getting more range. then i downloaded foobar 2k and an equalizer and found that i can easily bump up to 10db of bass, sub bass or both using the equalizer and the dt770s carry on without any effort, while assaulting my ears with tremendous bass. thats when i grew to love them. quantity is easy to attain, its quality your after. with time i learned its actually sub bass which does it for me, and really, no more than 4 db boost is needed for my preferences...
i dont mean to be presumptuous, but perhaps your like me? perhaps youv only been using cheapy iems until now, and you bought the dt 770s as your first "entrance level" headphones, and you read reviews about how bassy they are and were expecting to get kicked in the head with a massive mid bass thump, only to put on the headphones at long last and realize, these really arent that bassy? the 770s are bassyer than neutral (this is from what other people say, i havnt heard anything but the 770s), but they are not bass monsters. however, as iv mentioned before, they are very bass capable. try getting a different amp maybe? one that doesnt hiss. try downloading a parametric equalizer and play around with it and youll see that these headphones can become just as much a bass monster as you want them to.
i hope i was helpful