Pros: Sound Quality, Customisation, Build Quality, Isolation
Cons: Quite Expensive but Priced Appropriately, Sound Signature may not be for you.
Pros: Very accurate and revealing, insane bass ability
Cons: will amplify any bad sources to the point of insanity
Pros: Astounding performance
Cons: Expensive
Pros: detailing; bass quality and impact; 3D imaging; accuracy of instruments in presentation; and an all round of good fun.
Cons: price; ergonomics of the cable; and microphonics.
“ http://www.head-fi.org/forum/thread/524282/review-unique-melody-miracle-6-driver-custom-iem That's my full review. In summary: These are simply the best customs, and possibly the best headphones of any type, that I have ever heard. I prefer it to my JH13pro due to it's better deep bass response and more natural tone. These sound great paired with a simple portable...” --project86
“ I wonder why UERM is often disregarded while picking from $1000 range. I'm guessing that it's due to "only" having 3 drivers, versus having 8 drivers per side. I can say with confidence that driver number does not equal sound quality. Another reason I see why UERM might not be picked is its sound sig. It's perfectly flat. Personally, I love this. Here is my break down: UERM is...” --kimvictor
“ I posted a few pictures elsewhere, but now I’m making a dedicated thread about it. The topic is Heir Audio: a newly launched, high-end custom IEM company. Some of you may recall HeadFi user FullCircle, aka The Wizard, posting pictures of his beautiful custom creations a while back. His real name is Dr. John Moulton and he’s a Doctor of Audiology. His...” --project86
“ (caution: this is a long review (I know this because I just typed it out in Word and it spanned 7 pages!) I think this is a long awaited review of the 1Plus2s. I've had the stock cable for some time, but of late, I've had the new upgrade cable. I've had them for little over a week now (two weeks now since I've finished this), and the demo period is almost up. So in that sense, I...” --cravenz
“ Paid about US$1200, including custom fit, and am overseas. A very highly detailed and balanced IEM. I have an iPod only filled with audiophile grade music. Put in anything else, and you hear warts and all of lesser recordings. I use this with my portable set up, which is played through the CypherLabs DAC and the Go-Vibe Porta Tube amplifier. Cables are ALO but I really did not...” --Stephen L
“ The JH13 Pro was my first purchase of high-end personal audio equipment so it's difficult for me to provide a fair comparison (prior to purchasing them, I was listening to iPhone earbuds), but I can safely say that I couldn't possibly be happier with my purchase. The process of getting the impressions made was painless (albeit a bit expensive in the San Francisco Bay Area), and...” --WKHarmon
“ The price paid is because I had to do rushed-rush processing. 1964 delivered, with the best customer service imaginable. The Q has great lows, very good mids, but lack a little in the highs. I like heavily colored headphones and I knew the Q was a reference monitor going in...but that didn't keep me from being a bit disappointed by the lack of excitement to their...” --benzoylmethyl
“ Well this is my first (second I have the 8.A and I wrote this same review for the 8.A since I compared them both) review ever and I am doing it because it would be unfair of my part not to talk about this two excellent pieces of audio after THE EXCELLENT customer service I received from John, and I know some of you might get mad about this review since I am not going to focus just...” --Gorillaz
“ This is my very first pair of custom IEMs after trying almost all of the high end universal IEMs -- SE530, UE Super Fi 10, Etymotics etc. The sound of these UE11 Pros is superior in every way to all of the universal ones I had, but even more important they stay in my ear and provide a proper seal. Since my ear canals get very narrow, I found it very difficult to get any of my universals to...” --alyanm
“ I've taken down my review of the Merlins and will repost it once I get them back. By now it's been 4 months and I've had them in my posession for no more than two weeks out of those 4 months. Two weeks into the 3-5 week estimated turnaround time for my remolds/fixing and UM have gone back to maintaining radio silence. Not a word, not a single peep, no replies to emails....” --Sorensiim
