lowrider007
Licorice-flavoured booze?
D7000 are overkill, for sure.
to be honest, I think someone could get absolutely wonderful sound from headphones - like real topnotch - for under 600 bucks. even less if you wait around for used equipment
I would go for something like an HD600 or HD650. maybe a Grado 325i, AKG 701 or Hifiman HE300 and then get a simple, 150 to 200 dollar combo amp/dac unit like the hifiman EF2A or the Fiio E17 Alpen.
Depending on what sound sig you prefer (bass heavy, flat or treble pushed) one of those options will make you very happy.
The range of headphones over 600 bucks and up may sound real good but you get a big chunk of that performance on the slightly lower tier pairs I mentioned. And as of a few years ago, some of those were actually flagships (HD650, K701 specifically)
Your talking to a guy that says "I've become addicted to my old PX-100's", these are very cheap forgiving headphones with a lot of bass but not participially good quality bass, and remember he isn't a fan of his 595's, I know people like this, it takes a while for them to appreciate clean sounding high end cans which reveal mid ranges frequencies, they tend to find them 'flat' or harsh' sounding, I often find when people like this say they want good bass they are not referring to energy/timing/speed of the bass, but rather they want to just feel/hear the low frequencies, they don't mind if it's a little slow or loose, and they tend to prefer a little warmth, it's hard for high end audiophiles to understand that some people actually like that type of sound signature but many people out there do, I was very similar myself, I find it's best to ease them in, I've had my k240's for a year now and I've grown to appreciate better quality mids and now I'm thinking of moving up to the k702's with a proper amp/dac, but initially there was noway I would of appreciated what the k702's offered, I would of just said "sorry no bass/warmth, crap"
You have to remember that the most common eq setting for non audiophiles is the classic smiley face arc, high bass, low/warm mids and high treble, this is the sound signature that millions out there love, you give them a set of high end b&w speakers with no eq and many won't like what they hear initially, it's a learning curve, we've been kind of conditioned to like that compressed smiley eq'd sound signature, car stereos can take a lot of the blame for that because often pop music is eq'd to sound more forgiving (warm) and compressed because the producers know they are being played on cheap radios/stereos.