Rips said:
The frequency range of the HD-25's tends to isolate those frequencies required for fast accurate beat matching, I believe that's a major reason for their popularity.
Heavy bass while sounding nice in your ear are generally not required for beat matching, use the monitors or the club system to judge this.
Yeah, I'm not that sold on this call. I like them to sound good while I'm in a club situation where there's lots of other noise around. The Technics do this very well to me. I even prefer them to the Sennheisers in that respect. At home or in a studio it probably wouldn't be the same tho.
The popularity of the HD25s is mostly to do with entrenched opinions, price-quality perception and, most importantly, durability and having easily replaceable parts. Not their actual match for DJing needs sound-wise. In fact, they weren't even initially designed with DJs in mind.
Rips said:
The other problem is that if the music sounds too good in your headphones, it will encourage you to keep them on all the time which can isolate you from the dance floor. The less time spent in your cans the better you will manage the sound club sound.
Again, this seems like an odd call. Are you saying that regardless that you're probably playing music you like, having nice sound will make you wear them more, perhaps too much, and therefore you'd be less connected with the floor? That makes no sense to me. It's all dependent on how you DJ which, to me, should have relatively little to do with your headphone choice (and how long too - on very long sets I often keep my headphones on with the volume down to make sure I hear the sound right when I chose to mix/monitor).