Well it depends how high you prioritize ear vibrating bass over anything else. 

XB500: Biggest ear vibrating bass with huge impact, "slanting" slope frequency response, very warm, smooth, up-front / "in-your-face"/engaging sounding.

XB700: V-shaped frequency response, slow, deep bass focus, average impact, a bit more clearity from the very slightly exaggerated highs but mids sound a little bit recessed

DT770: Very V-shaped frequency response, recessed mids, thin sounding, somewhat metallic sounding highs. Very deep bass focused, below average impact. Great soundstage.

Pro900: Very V-shaped frequency response, bright highs, recessed mids, above average bass impact, somewhat midbassy. Quite good soundstage.

XB1000: V-shaped frequency response, more laid-back sounding than XB500/700, VERY deep bass focus, not so much impact (lack of midbass presence). Great soundstage.

You know, that when headphones get to the stage of vibrating on your head, most times everything apart from the bass doesn't sound that well anymore. Go and test a XB500/700 to know what the maximum is, if it's still not enough for you, then headphones apparently aren't the right choice for you :P

Heya,

Panasonic HTF600 over them all in my book, for the cost, if that matters to you. Otherwise, get the XB500 and equalize it with a Digizoid ZO (only if you already planned on having the Digizoid).

And I have all of them except the XB1000.

Very best,

For electronic and dubstep, Ultrasone Pro 900 reigns supreme.

Don't leave out the Denon D1100.  I am using that for my dance/trance/house music and I'm loving the bass output.  Very impactful bass and the treble isn't as hot/piercing as the ultrasones.  

Quote:

Originally Posted by crinacle 

For electronic and dubstep, Ultrasone Pro 900 reigns supreme.

I actually ended up preferring the D5000 over the PRO900 in all ways, especially for EDM, oddly enough.

I also found the HTF600 to be too similar in ability with EDM/dub for so much less that it made the PRO900 hard to justify.

Food for thought.

Very best,

Quote:

Originally Posted by MalVeauX 

I actually ended up preferring the D5000 over the PRO900 in all ways, especially for EDM, oddly enough.

I also found the HTF600 to be too similar in ability with EDM/dub for so much less that it made the PRO900 hard to justify.

 

Food for thought.

 

Very best,

D5000? Hm. I must try it out one of these days.

As for the HTF600, and this is all personal opinion might you, the detail lacks, the treble doesn't have the same sparkle as the Pro 900, not to mention that the Pro 900 rumbles deeper. The only thing I prefer in the HTF600 over the Pro 900 is the mids, and even then it's only because the Pro 900's are way too recessed for my liking.

Quote:

Originally Posted by sid12345678910 

well then it comes down to the xb500 vs the pansonic vs the pro 900 vs the denons 5000 (never heard of them)

 

what would be the best amp for them

For the money, the HTF600 and no amp.

If you have some money to spend, the D5000 with any basic amp (Fiio E7, E11, E9, ibasso Zero, udac, PA2V2, etc); but an amp is not really necessary.

Very best,

If you're considering the D5000's, you should also consider the D2000's.

Quote:

Originally Posted by nullstring 

If you're considering the D5000's, you should also consider the D2000's.

D5000's are a warmer woodback version of the D2000 with less recessed mids.

If you got the money, there's no reason to get the D2000 if you can get the D5000.

If money is a concern, the D2000 is the way to go.

And if money is a serious concern, the HTF600 will do the job.

Very best,

D2000s have little bass compared to the XB500, but it's still a very impactful bass.  I refer to the D2000's as the audiophile's basshead can because they extend low and with plenty of impact, but they keep the bass bleed to a minimum and clarity at forefront.  XB500s sound like a muddy mess in comparison.

It's up to you: the choice is between a decently articulate sound with very good bass, compared to something with as much bass as possible and sound quality put aside.