Given how long ago they were originally built, would you consider the HeadRoom Max balanced amp is still a stellar piece of equipment, or is it outmoded and outgunned by more modern amps? What would the difference be, and are there comparable modern equivalents? Also, how would you say it stacks...

My Corda HA1 Mk II has ceased to power up. When I opened it up to check fuses, one was bad, the other was not. What confused me was that they were differently rated fuses (one was T50mAL 250v and the other was T125mAL 250v). Since I bought this amp pre-owned, it never occurred to me to open it...