For less than 200 dollars, there's not a lot to complain about here. The MX1's amp sounds quite good and powers K702s without trouble, and the DAC does a respectable job and sounds even better when hooked up to a separate amp.   One problem I have with the MX1 is the gain is a little too high. With most of my headphones, I can barely turn the volume control past the 8 o'clock level, which causes some channel imbalance. As a preamp, though, I don't have this problem, probably because my headphone amp allows me to further adjust the volume.   I...

I have had this amp for a few months, and I really enjoy it.   The Caliente (and the KICAS as well, I suppose)  feels like a quality product, which it is. It's true that the amp looks quite bland, but I think it's a nice, "no BS" design that just sits there and does its job. The volume knob turns nice and smooth, and the power switch "clicks" nicely. The housing has a very unified appearance, and feels bulletproof. The amp is powerful enough to drive any conventional headphone.   The sound is what really sets this amp apart, though. The...

Fit and finish The PS200 fits well in my ear canals, although the body is on the large side. Because of this, they constantly push against my antitragus, making it sore after a while. However, I doubt this will happen to other users. Isolation is quite good; they isolate about as well as my ER6s, despite using single-flange tips. However, the tips are quite thick, and don't squish down quite as easily as the ones supplied with my other earphones. I haven't tried Sony's 'hybrid' earpieces, but I would assume those are softer and thinner. The...