I am promoting UM, for free: )
I am promoting UM's product! In fact, I am super disappointed with Null Audio.
I shot them an email a few months ago. I guess I am kinda anal, so I listed 10 questions, and they took a while to answered. I listed 10 questions, and they answered 2.
Then later after searching online in both Chinese and English sites, I came across a local Taiwanese forum that have the answers that I was looking for; ). I called a local retailer: hifi.com.tw and they took a really long time to answer my questions, so being as anxious as I was, I decided to send an email to UM directly.
I emailed Sam(UM), and I got his response the same nite. He added me to his MSN and explained a ton of questions that I had. Again,.. I am anal, and I was trying to find out the differences between the sound signature of es3, ue10 and if it's possible to upgrade my sf5p into ue11, what materials to use, and the different effects between the custom UE and Westone cables.
He answered everything in detail and he quoted me a very reasonable price. Much cheaper than Null Audio. So I guess I am thankful for Null Audio's lousy service. I think UM is getting very popular in various Chinese forums, and it's also gaining their recognition in this community. My advice is to be patient, and instead of ordering the UE and Westone custom cables, order some local custom cables. They sound very very nice: )
Finally,...I am not working for UM, nor am I a investor. I just want to share my experience here.Also the obvious YEMV applies here.