I have the original ST-202 and had it modified shortly after buying it.The sound is totally different than the stock version whereas the forward biasing cleared out the grain or glazed sound that I could really live without.
I had listento the Adcom GFA-555's,I believe they were,and the thing that they exceled at was bass impact,but the mids and high's were to dry for my liking.
I also have an AV-2500II that I am using for 3 channels ,but am not as impressed with it's performance.That being said I will also have it modified and might try a vertical amp setup using modified B&K's.
I had listento the Adcom GFA-555's,I believe they were,and the thing that they exceled at was bass impact,but the mids and high's were to dry for my liking.
I also have an AV-2500II that I am using for 3 channels ,but am not as impressed with it's performance.That being said I will also have it modified and might try a vertical amp setup using modified B&K's.