Audio-Technica ATH-M20x

Bought this unit for my home studio setup. Didn't want to spend a lot, because I usually use my speakers, and only need headphones for vocal tracking, and occasional online calls.

The price/performance is hardly beatable. M20X's are cheap and of reasonable quality. No issues with the physical build, and the frequency response is comparable with much more expensive sets.
Also, I use SoundID Reference by Sonarworks to calibrate the sound, so I have no issues with the sound whatsoever.

The plastic is sturdy. This isn't the first pair of M20X's that I've used, and they have not broken while I'm using them.

The noise isolation isn't amazing, and helps more with isolating the sound from inside the headphones bleeding into the mics than the other way around. However, I don't particularly need this unit for high noise isolation.

The headphones are comfy enough for sessions, although they feel a bit stiff on my head. Hopefully I'll break them in.

In conclusion - one of the best options within this price range.

i have owned the m40x and m50 for years and bought this as a spare, but wow! it sounds much flatter and a lot less artificially "hyped" than its more expensive brethren. a little harsh around the high mids extending to the low treble range (slightly harsh S's), but that's about it. it sounds more neutral overall and a lot better for mixing, in my opinion. i guess its less exciting sound and cheaper make is a little off putting for most people, but it sounds great to me. i can listen for hours on end without fatigue. quite surprised and impressed. tight bass (super deep with sonarworks!), great sound isolation and comfortable to wear (uncomfortable at first but it stretched to accommodate my big head). i definitely recommend these puppies!

When compared to most low-cost headphone offerings, it's great to be able to get something like this from a reputable manufacturer which you know stems from a design made for studio use.

As a cousin of the M50 X variant, these are the cheapest in the range and after reading a few reviews I felt confident enough to buy 2 pairs for when I have musicians tracking in my home studio.

I intend to buy more in the future as its very nice to have all headphones with the same EQ fingerprint so that headphone preamp levels can be set the same and I can EQ the mixes all the same way, knowing that a 5db increase for one person will be the same for all.

An added bonus is that's I can carry these headphones around shoved in my laptop bag for a less critical listening - they're very enjoyable to listen to music on generally and despite a little bit too much warmth are smooth enough to be used for everything except surgical EQ.

They sound a little towards the home hifi end of tone, a little warmer and slightly loudness-character to them, but really smooth and pleasant all the same.

Compared to other studio closed cans for tracking, I really don't know why everybody isn't using these!

So good for the money - but they are nonetheless a plastic headphone and I suspect would survive being trodden on, but who cares, they are cheap to replace.