was it here people wanted an openheart OH2000 review (aka openheart grado clones)
I'm no massive audio expert but:
build: 10/10, all metal, adjustment mechanism is hard to adjust but stays very firmly unlike grados sliding all over the place
accessories: incredible 10/10 thicc braided cable with metal chin adjustment, metal splitter, metal 3.5mm
very high quality pleather/leather bag, makes the m40x's stock bag feel like crap in comparison, smaller accessory pouch seems? to be real leather maybe, also very nice
grado pads are decent quality, about average, misodiko I think was the store with the nicest, softest foams I've worn, I'm not even sure if yaxi pads could be softer and nicer.
sound: it's basically a cheap sr60e from what any opinions on the SR60e seem to suggest, it's bright (possibly not as much as an sr60e), it's got somewhat forward mids (maybe not as agressive as grados), nothing below 50hz at all I think from my dodgy phone mic measuremeants, so you don't get much bass at all, but the midbass is alright.
I however don't have an sr60e.
So comparisons:
better sounding than ksc75 in every way by a bit, bass perhaps doesn't go as low as a porta pro, ksc75 lovers will enjoy this one's sound
not as good in any way as grado allesandro ms1, which manage more bass and subbass quantity, a tad less brightness and amazing lucious forward mids, and substantially more detail.
SHP9500 are probably still better sounding overall, but this is the headphone for modders, I believe it houses 40mm drivers, and it's very easy to take apart, put a higher end driver in, the build quality is incredible, all metal and it would be far more sturdy than any unmodded grado, heavier than my ms1s though, but still fairly light, the headband is also padded.
Fidelio x1s make these sound like a joke, but they're currently for $150 on aliexpress, so a bit over double the price of these, a steal honestly.
Said shell usually costs ~$100, without cable, without driver, probably without any jacks too, and pads, and pouches.
so openheart is doing us all a huge favour if you want to do some very easy soldering and find a good driver.