Pros: materials, audio fidelity
Cons: quality assurance, finished product, comfort, customer service
I purchased this cable with the connection type to fit my Westone UM Pro 50 IEMs. My UM Pro 50 IEMs already delivered great sound with the stock cable, but I wondered if it could be improved even more. With the promise of good reviews here and elsewhere I also purchased this cable. When it arrived I attached this new cable, but I noticed a few things in doing so. The connectors on the cable that plug into the IEMs are made of metal and there are some rough edges still left on the surface from the casting of them. These rough edges affect the comfort level of using these cables, since the rough edges rub against your ears. These cables are also heavy, which is to be expected of this kind of cable. However this added weight combined with the rough cast metal connectors makes long term use of these cables fatiguing to the ears. With the stock cable of my Westone UM Pro 50 IEMs, I could use my IEMs all day long with no fatigue or discomfort. With the Silver Dragons I could only use them for several hours at most. I realize that most people will not be inconvenienced by this, but for professionals who use these for longer intervals this is an issue.
The other thing I noticed when installing this replacement cable was that the left and right channel connectors did not have the same fit. The connector for the right channel has a very tight fit and does not wiggle at all or even swivel. The fit was so tight that I did not notice any snap to confirm a proper connection, so I wondered if it was connected. The connector for the left channel though is quite loose and wiggles significantly, to the point to where it felt like it would fall off. It plugged in with so little pressure that I wondered if it was really connected even though it snapped into place. When it swivels and moves I can hear static and audio distortions in the audio in my left ear. I tried reversing the channel cables with the left and right IEMs to see whether this was due to the cable or the IEMs themselves and this showed that it was because of the connectors on the cables, not because of the IEMs. Thus even though I did appreciate the improved audio fidelity from these cables, the static and distortions resulting from poor quality assurance ruined my experience. In the end I decided to use the stock cables for their superior comfort and lack of static and distortion. About a week after I purchased my cable they sent me an email requesting feedback and positive reviews. By then I had enough listening experience to respond and I politely inquired if these issues I mentioned were customary for their cables, to which (now two months later) I still have received no reply. Now I can boast that I have the most expensive spare cable collecting dust in my spare cable drawer. Until Moon Audio improves their quality assurance and customer service I cannot recommend this cable to anyone.