My goal is to purchase the most transparent and detailed amp I can for under $1000. Some of the options I've compiled after doing a lot of lurking around here are Yulong A100, AMB M^3, Meier Audio Corda Concerto, Burson HA-160.
I'd like to hear some opinions between these amps and if you have any suggestions of amps I have not mentioned that would be great as well. I like the idea of the active ground because I would prefer not to re-cable my headphones. I'm using the HD 650 by the way.
Here's my thoughts on each so far:
Yulong A100 - Cost is attractive and it would look nice with my D100 but I'm afraid I might not notice as much of a difference from the D100 as some of the other options I am considering. Also there isn't too much talk about the A100.
AMB M^3 - I do have some experience with electronics and would feel totally comfortable with soldering everything up and doing measurements. The thing I am not comfortable with would be dealing with how to make the case look nice or where to buy the case....just anything case related. I have considered YBM Audio as a builder but I don't want to overpay.
Meier Concerto - This is currently the most attractive option to me, bad timing though because they just recently went out of stock forever. I e-mailed Jan and he replied that a successor to the Concerto is planned but he has no details yet and it's probably at least 6 months out. I dunno if I want to wait that long so I am in the market for a used Concerto.
Burson HA-160 - This sounds like a great amp. What concerns me is that some people are saying it's neutral and transparent while others are referring to it as having a warm, powerful sound. I like everything I've seen about the Burson otherwise but I would like more info on it's sound to get more opinions about it's transparency.
Sorry for the long post, but this is a big first decision for me. Any criticizem and opinions are appreciated!