Do you mean that you have the RE-600?   If you want a similar neutral sound, then the new Etymotics are worth a look, the ER4-SR and ER4-XR. The XR has a little bit of extra low frequency presence, but not too much. They are incredibly detailed, so if you're listening to ropey recordings or...

What you call passive noise cancelling is more usually referred to as isolation - I was thinking of the Etymotic HF5 which is great for this, plus it's fairly neutral with perhaps a bit more presence in the midrange. However, depending on your ears, these may lose points with the comfort.  ...

I really like the T20, but I haven't laid my hands on the IE80 recently so can't comment on that so much. One thing to consider is that the IE80 has a replaceable cable, and you can use the IE8i cable if you wanted a mic/buttons.   Another one I'd mention is the Fidue A83 which may suit you too.

We went down the road to visit B&W and spoke to the chaps who work the magic there. Take a look!  

If you've enjoyed the HD465 for so long, you might find the DT880 a bit of a shock - it's noticeably brighter-sounding and may stray into fatiguing territory for some people. The HD598 is the safer choice, although you can of course tame the highs on the DT880 using the mixer EQ.

I'm wondering why your current earphones fall out, are they earbuds (non-sealing)?   Whatever may be the case, perhaps look at something with a cable which goes over the back of the ear which will help keep them in place.   The Shure SE215 is a good one for EDM, plenty of bass and quite...

These are advertised as being suitable for ages 4 and up, have volume limiting, and they're pink! Isolation should be good too, although this is down to the girl's ears of course!   http://www.hifiheadphones.co.uk/etymotic-ety-kids-5-safe-listening-in-ear-isolating-earphones-pink.html

  Their earphones are decent, the tuning is a fairly standard consumer sound with maybe a little bit extra treble coming through.

I've enjoyed a bit of rock with an E10 in my time, the bass on them gives those heavy chords a nice weight. You might consider the E50 as well, these have a bit more midrange presence so might be more suitable if you're wanting more pronounced guitar/amp distortion, harmonics or vocals.  ...

There's a few current reviews for these (there's two on the front page at this time) so have a look - the Meze 99.   These have a powerful bass, but midrange isn't affected - they're heavy hitters and should just be within your budget -  ...

I'm assuming that you're easy about the headphones being open or closed backed, so with comfort in mind, the HD600 might be your cup of tea, or the HD650. Given your thoughts on the DT990, the new DT1770 might be worth a look too, although this might squeeze you budget if you require a DAC/amp...

I assumed it would have been mentioned in this thread, but Canjam London is your best bet, if you can wait until mid-August. There will be a whole selection there - take your Mojo and player and you're all set.

And not forgetting the week leading up to Canjam London, where there's a 5 day strike if talks don't help things. I'm glad of my motorbike!   We can't help that, but we're otherwise an easy ride down from Victoria - by the way you'll need Lancing for us, but you may as well do Brighton too.

It is likely that the tubes on the J69 are not in the audio path, they are there to look good while the audio just gets amplified using solid state components. If you have a spare half an hour, it gets a close inspection here -   https://www.youtube.com/watch?v=coSt5HWRvv4   Edit - it seems...

The Fiio amp will be OK with the M2, HD600 probably not.   Is there any reason you're looking at a closed-back headphone? I find a closed-back works well with electronic genres so that's no bad thing, but we have visitors here who may not be aware of the design differences between the two...

We still have the Amperior here, although Sennheiser has stopped those it seems.   http://www.hifiheadphones.co.uk/catalogsearch/result/?q=amperior   However the HD25 is still going strong - it's still listed on Sennheiser's sites for instance -  ...

We all have different ideas where it comes to what bass level is ideal - all I can suggest is that you look at a range of reviews for the SE112 and see what the average opinion is.

OK - KEF M500 (one of my colleagues here has these, and wears them on the way in to work). Really nice sound, not sibilant, great midrange -   http://www.hifiheadphones.co.uk/kef-m500-closed-back-headphones-with-detachable-cable-and-apple-controls-mic-classic-silver.html   There's also the...

You can buy the eartips that Shure does easily enough, they're sold all over the place. These particular ones are the 'olive style' ones (they do foam tips as well). They stretch a bit, so might be OK for nozzles up to about 3mm-4mm in diameter. In other words, the same earphones which a Comply...

Do you want a change from the Momentum in terms of the sound - more treble, or more midrange for example? Also do you want a portable pair, or something for staying at home?

The Shure SE112 is one of the most isolating earphones I've tried. Rather than having boosted bass, the SE112 is quite smooth at the top/treble end which gives the impression of a bassier sound.   http://www.hifiheadphones.co.uk/shure-se112-in-ear-sound-isolating-earphones.html   I've seen...

I can't answer fully as I'm at work (albeit doing my job!) but the PM-3 is a pretty good one to try. I certainly like them but they aren't to others' tastes on occasion. We've sold loads from here with a tiny return rate, so that's probably as good an answer as any. I'd take issue with the...

Nice review! I definitely agree that these headphones seem to sound better straight out of a phone. I plugged them in there and was dancing around like a teenage girl, singing into a hairbrush (well, almost). Taciturn commuters, take note.

If you're thinking of looking at other outlets (other than costco) then the Fostex T-20RP might be a good one - these are built for studio use primarily so they're quite rugged. The T-20RP is an open headphone and it has two brothers, the closed T-40RP and semi-open T-50RP. Ensure that you're...

Yep, that's unusual - I've not seen that but like you, can't draw any firm conclusions. See what Shure says.