DUDE!!! just looking at the schematic for the 3600. Man are you gonna love this phono stage, the spec say it goes to 10 hz with 95db SNR. This is a good unit which should respond very well to some op-amp changes, elimination of ceramic caps and some audio grade electos . I am reall looking forward to putting this on the AP. You got a really good deal on a really good pre.........at least on paper, hope it soinds as good as it looks on paper...