amplifier longevity

I’m a die hard Mac guy, but Luxman is a super nice all in one unit. Tubes Vs SS it’s alway maintenance. More on a valve unit, but not much more. I was raised on valves, SS was added not the other way around. I like everything pretty much.

Class A, A/B. SS or valve. Class Ds with buffer boards and rollable OpAmps, without buffer boards, ZERO feed back, a ton of feed back, adjustable feed back.

Just make it work. I’ll make my part work.. I won’t hook it up backwards. :-)

Merry Christmas

Regards

Comes down to design, parts quality, and heat.  Many amplifiers that we have repaired just were not that well designed and or did not have the proper design to remove the heat.  Think Counterpoint - mosfets back then were not that great and they were covered with a cap.  Against all understanding of how to remove the heat so they failed.  Also lasing long and producing good sound have nothing to do with each other.

Much has to do with the quality of the gear, the capacitors are the ones to fail first .

the better ones usually last much  longer as well as the coupling caps sound far better when name brand but cost much more $$ .

I had Metaxis monos one of which literally went up in flames and also one of the first Musical Fidelity Nu Vista preamps which went incendiary, less spectacularly, because of the dumb double decker design, in a small cabinet with no heat sinks. The designer should have been shot.

blackdoghifi, true.