Unusable due to poor craftmanship. Right-side IEM literally electrocuting my ear.
I initially wrote the below review, but have to update after realizing this major flaw with one of the two IEMs. The right-side housing is electrified (left is not) and is causing great pain to the inside of the ear making the set unusable. This is unforgivable. The issue wasn't immediately apparent as I ran it through my phone and through iFi HipDac on battery power (less current), but upon hooking the HipDac up to the PC (thus running through USB power, more current) I am now being f****ing electrified. I thought about updating my review about the housing having maybe too sharp edges as it was causing pain on the inside of my right ear where the metal connected with skin, but it's now obvious why that pain came along...
Adding sloppy craftmanship to the review of the set puts them at a solid "DO NOT BUY".
Sound
The Tin HiFi T4 IEMs suffers from a distinct white-noise hiss accompanying all highs. This is almost completely toned out in heavier soundscapes like rock, pop, or funk - but the result is still a muddy soundscape that ends up quite flat in sound. When listening to minimalistic soundscapes, like those of progressive jazz or electronica, art-rock or the likes, the hiss becomes a much greater nuisance.
The bass carries a significant boom at it's lowest - which tones out most of the white-noise (when listening to trance, trap, and other genres with a more constant low bass output), but this is quite circumstantial.
These earphones do not provide a significantly clear sound and the HiFi label is a great stretch (to a point of mislabelling, in my opinion). If you're looking for an audiophile-pleasing pair of IEMs then these probably won't do the job - at least they haven't for me. That said, these still hold their own considering their pricepoint and I definitely will continue to use them for now (until getting my hands on a pair of proper HiFi IEMs).
*Also, the significant touch-sound from the "standard" 3.5mm cable doesn't exactly improve the sound-picture when moving around! Supposedly the thicker 4.4mm cable is much better in this regard, but I haven't one for comparison.Housing and CableThe housing is sturdy as hell. You won't smash these any time soon. With the metal casing and a robust form there's no chance, unless maybe if you run them over with your car...and I'm honestly stressing that "maybe".
The cable (3.5mm jack) is a very thin, twisted cable with a transparent plastic coat. Approx. 10cm of the cable - right at the connector to the IEMs - is reinforced with an extra layer of plastic coating. The cable has an extremely annoying curl underneath this extra coating on both left and right side, causing the cable to curl up and either rub against your cheeks or curl around your ears, producing a significant amount of unavoidable touching-sound. The curl is very rigid, and I've tried for quite a while to un-curl the cable, but to no effect at all. Hopefully this will stretch out over time, but for now it doesn't seem to give even the slightest. The touching-sound of the cable is not as bad as could be but is quite noticeable. Of course more so with minimalistic soundscapes than noisier ones.
At the jack-side of the cable we have a basic rubber reinforcement of seemingly no better quality than what you'll find on a pair of headphones at your local supermarket. I'm honestly quite worried how long the cable will last. The quality here stands out compared to the rest of the product and appears as the "weak link of the chain". This, as well as the hiss, was something that I immediately found dissapointing about this set of earphones.
VerdictI'd probably recommend going for a better pair of IEMs for an Audiophile friend. But for someone who isn't already used to HiFi quality audio, and want something better than your standard consumer-level earphones, I could see myself recommending a pair of these.
The Tin HiFi T4 is definitely a step-up from the common earphones that you'll find in your local store, while still falling way below the price of both studio IEMs from your local music shop or genuine HiFi earphones from common Western brands.
This, however, makes the Tin HiFi T4 fall into kind of a weird spot; if you don't want to spend too much on your in-ears you should still just buy a mid-range pair of Sennheiser's - but if you want audiophile HiFi quality, you should still buy something better (and significantly more expensive) than these.
All-in-all; I'll use this set until I can afford better.
SkafsgaardI have the exact same problem… 3 years down the line I’m now having to switch because the left MMCX connector is failing and I was also getting electrocuted. I wanted to buy something that would last me longer than 3 years. Overall I wouldn’t recommend you to buy these