GOT to be a pair of HD25’s if you like D&B… They’re the clearest phones I’ve used by some margin, and was doing a bass rolloff in one track I was making the other day, can still clearly hear down to sub 30Hz on my HD25’s… Don’t think any others I’ve ever tried come close to that!
OK, you won’t get a pair for £100, but mine are 7 years old now, get used all the time, home, uni, DJing, producing etc. and they’re as good as new… Prices seem to be around £130-160 depending where you buy them from.
On a seperate note, if you don’t wanna stretch to the HD25’s, the HD25SP’s are in a similar vein. They’re not as good, bass extension isn’t quite as far, and they do feel cheaper in use, but again they’re better than pretty much anything else out there.
Both are fully rebuildable/repairable also, and both will still be worth almost what you paid for them if/when you sell them a few years down the line. Take note Sony/Pioneer/Technics etc etc…