Hello AustinValentine, thanks for responding. Does the GO1000 make the DT 250-250 any more bassy than the GO450? Mine feel somewhat bass light so I was wondering if I wasn't giving them enough power and considering possibly the GO1000/GO450.
The DT250-250's have a low bass roll off and a high treble roll off. Kinda rolled off equally on both sides. The roll off in the high treble contributes to the closed in sound and lack of air. The low bass roll off (starting at 40hz) makes them feel less extended and guts any sort of sub-bass presence. Not a lot of rumble, not a lot of slam.
The GO1000 shouldn't provide much of a bass boost. The DT250's are never going to be bass monsters or even great bass headphones. They are more or less solid generalist headphones, and do most everything well without doing anything terribly poorly. That's their niche.
Well, it seems the pair I got have mismatched drivers... The left side has noticeably more low bass than the right.
Also, after listening more these sound NOTHING like HD600's. They have a different tonality in the treble, totally different peaks, and the timbre of cymbals and percussion is different. Bass is also different and more emphasized (especially sub bass) and the smaller soundstage compared to the HD600's makes instrument separation not as good. They do seem to have a bit more emphasized lower treble.
Also, they are really more like on ear headphones. I don't see how anyone would have ears small enough to not make significant contact with the foam covering the driver.
This sounds like you got "Chocolate-Box Beyered" - when you open certain models of Beyer headphones, it's like a blind reach into a Whitman's Sampler. Will you pull a caramel, a truffle, a cherry cordial, or some type of disgusting overly-sweet nougat? You don't know until you plug in the headphones, and there isn't any box-top guide to help.
If you search on the web, you can find measurements just how much absurd product variance there is between certain models of Beyer headphones. Just look for Beyer Inconstancies, and you'll find tons. The DT250-250ohm and the DT1350 seem particularly prone to this type of variance. (Check my sig and see just how many tries on each it took for me to find decent pairs >.< 5 on the DT1350 and 4 on the DT250-250.) A good pair of DT250-250's sounds like a rolled-off, more closed in, less resolving, more grainy/gritty HD600. The tonality really matches up well. A bad pair, and there are a lot of them out there, can sound mismatched and confused (the most common problem - one you've encountered), shrill, or mid-bass heavy.
I've actually stopped recommending that anyone purchase these unless they get them from somewhere with a very good return policy. The sad part is that these and the DT1350's are
proline headphones designed for
audio professionals. That's pretty well unforgivable.