Aragon 4004 channel dead,

While listeing at loud levels the amp loudly clicked like mechanical switching and sound obviously distorted then nothing from that R channel. All fuses are fine, fixable? Thanks!
Indy Audio Labs now owns the Aragon/ Acurus brands. They have a service company that they can direct you to through their website. This particular shop can repair and or service all of the legacy Aragon and Acurus products.
Thanks all, it is a MKII btw. Play It Again Sams in Cleveland area estimated $250 for repair, in 10 weeks.