any info would be greatly appreciated.it has sigma drive,(neg. feedback to the speakers through seperate wires). does this preclude this amp from bridging? i`ve owned my amp since new (20 years) and it`s blown up twice in that time,so now i`m really committed to hanging on to it as it`s cost me. i have to say though , that i love it and i really appreciate being able to buy new parts(ex japan) for it. if it`s bridgeable i may consider purchasing a second,for my home theatre system, since they`re not so highly sought after,(i`m either avant garde or a naive dickhead). My ears tell me that it`s a great amp, however and i don`t care what other`s think. i`m sure there are other amps that are possibly cheaper that sound cheaper,(should read better.........freudian slip i think) but i don`t own them(or care). If you have some web site or useful information, email me with your email address if applicable or a www. address.
with much appreciation
paul in victoria australia (a great place to live)xoxoxo