I have an Ashdown Superfly 500 amp that I'm trying to repair. The Superfly has 2x250w power amps onboard. One of mine has blown. Ashdown UK can't supply components to repair, and unfortunately, Ashdown try to diguise the discrete components on the board. I've managed to identify the power amps ic's, marked ADU27, as a TDA8927. I still need to identify the chip ADU29, if anyone can help. The amp boards are marked HB01050 D300W VER050426. Does anyone know where I could get a replacement board? Or, does anyone out there have a Superfly with a busted channel that I could buy off them?