Tube vs solid state (with all apologies)

@pauly - you definitely are the exception. Everyone I hear from talks about replacing tubes after some cycle time depending on the amp, environment, usage, volume, etc. You must have some super tubes!  Or maybe they are replacing them because of sound degradation and that doesn't bother you.

Not sure since I never owned tubes and don't plan to. SS can deliver just as good SQ, depending on the amp.

@tvad - then why do tubes claim certain life expectancy? 

then why do tubes claim certain life expectancy?



Those are usually just an average, it can be less or more depending on how the circuit is designed. I have a preamp that uses two 866a rectifier tubes that will last decades until the filament burns out.