Stick with the Hafler. Have IXYS Freds installed, they run less that $25 each from Percy Audio, and they will remove the switching noise the factory installed bridge rectifiers impose on the mid range. With that little tweak, the Hafler will kick ars on many a high end amp. Any TV repair shop should be able to do it, though they will have to drill new holes in the bottom of the chassis, and get the right nuts, screws, and washers to mount it, but they may well have them floating around the shop.