One of the other experts would be more helpful in terms of age. They're in great shape, though. The shift in sound might be the earpads conforming better to your head, too. Every bit of difference really seems to matter with them. That's definitely a stereo jack, too.

Don't do it! For the DT48, the sound quality is tied directly to the seal and size of the air pocket between them and your head--any other pads, and you are going to lose any bass you have and destroy the sound. They are a bit clampy, and it does feel like it's trying to suck your brain through...

You probable want to aim for something that people describe as having lots of warmth, since that usually comes with a slight rolling off and avoiding of peaks at the top end. I'm not familiar with UK pricing, but I may be able to give you a few starting points for research. I would avoid...

I am going to say something that may be considered heresy on this thread, with no intention of offending anyone.   I've been wanting to check out the new series, as my modded T50RP have a loose wire somewhere and I haven't gotten around to fixing them. I opted for the T20RP this time around...

Okay, so they sent the TR-70 80 Ohms and I don't care enough to replace them with the 250s.   With the different reports that have been coming in on these, I wasn't sure what to expect from them.   I need more time to fully process these, but here are a few initial thoughts: The thick pads...

I'm intrigued by these, as they seem to be a barely disguised attempt to replicate the Beyerdynamic DT line.   I have an order in on the TR-70 250, since it's the closest to the DT990/600 that remain my main headphone. Since there's not much discussion of the most open ones (which seems odd...

Well, I found an ebay lot for 19 studio headphones and headsets (untested) for $100. I was pretty sure I could see a DT48 in there, so I nabbed it, figuring it would give me a project for the next while.   Turns out there are two pairs of functioning DT48 200 ohm models, though they were in...

Quote: My O2 has no trouble with the DT990/600, so you should be fine.

I wouldn't recommend any of the headphones you've listed without an amp. The V-moda M100 might suit your needs nicely, and I think it would be a nice sound upgrade from the Ultrasones.

None of the ones you've listed are noted for their bass response.   I would definitely consider looking at the Beyer 990 or 770 instead.  Both have excellent bass but also offer a good introduction to higher end sound.

You should be okay.  I'd put everything back (padding) then use contact cement (or some other glue) to reapply the grid.  You don't want stuff rattling around back there.   If you're new to headphones, you should also know that a pair of headphones with 600 ohm impedance is not going to play...

Welcome to head-fi.   My value headset advice: Keep an eye on ebay for used Beyerdynamic DT190 or DT290 headsets--they come with broadcast quality condenser mics and sound fantastic.  I use a Mackie 4 channel mixer to connect it to my computer, and it's the best voice chat option available...

They look pretty similar to the DT-220, perhaps a predecessor...  ostensibly, it's likely an ancestor of the DT770.   http://wiki.faust3d.com/wiki/index.php?title=Beyerdynamic_DT-220   Can we get a picture of the inside?  I can't really get enough from your description to know whether it...

I would definitely try a few things before tossing the QP-805. They shouldn't sound thin. Absolutely, try them in some newer amp to see how it compares. Even a fiio should give enough punch to get a better sense of the sound. Next, I would try to get new pads. The stock ones can be very hard to...

What you might be hearing for the first time is how much dynamic compression is in most popular music. The more resolving the headphones, the more it sounds that way. While it might not quite give you the sound you're looking for, you might want to give the Sony XB-700 a try. It has lots of...

The DT990 are great gaming headphones. They are ridiculously comfortable for long periods of time, and breathe very well.  The pro versions have coiled cables, and the premium ones are more expensive.  Whether it's worth the additional cost for the aesthetics and a straight cable is sort of up...

There aren't many options in that price range that fit all of the criteria.   If you have small ears, you might be able to find a pair of Phiaton MS400 in your price range, which actually do fit all of your criteria, assuming you can fit your ears in them right.  Very comfortable if you can...

If you liked the Crossfades aside from the bass bloat, the V-Moda M100 might give you the sound you want in a package that will be familiar.  They are solid sounding headphones for those genres, and don't require ridiculous amping.   I wouldn't recommend Ultrasones if you are looking for...

I can't speak for the E10, but I think the 990 pros are hugely underrated for their price point.  As long as you can handle the sharp highs, they respond well to any decent amp, and deliver lots of big, fun sound.  If you are uncertain about going with open headphones, though, don't.  They...

I own the Pro 900, and have listened to the V-Moda M100 as well.   It really depends what you listen to and the sound signature you prefer.  The Ultrasone has the most and best bass of any headphone I've heard--if you listen to predominantly electronic music and you want to smack your ears...

I think some of you may have had VERY different experiences than I did with the Pro 750.  I found they needed a good amp, and were much too harsh and tinny.   Do you have a good audio store near you where you can go and try out a few pairs?

Quote: The Pro 900 and the DT250 are worlds apart.  The Pro 900 are very bassy, have recessed mids, and a particularly wide soundstage.  The goal of the DT250 is to keep things fairly balanced.  

How much soldering do you do?  If it's not a lot, find someone who does and have them help you.  Keeping an iron that close to a driver for too long can melt the leads or damage the diaphragm.   Can we see a picture of your problem?  

www.lamusic.ca carries the Shure pads if you want to source them in Canada.  That's where I got mine.   Unfortunately, my Paxmate supply dried up--not aware of a way to get it in Canada now.

Not without finding a pair of the 16 ohm drivers through Beyerdynamic, but I don't see them on the North American site.  It's not like there are resistors in there that could just be removed.   My guess is that it might be cheaper just to buy an entry-level amp that would drive them.  ...