Lifespan of a quality solid state amplifier?

Too many variables,.... room size, listening level, speaker efficency, speaker efficency, etc. Bryston is at least 20 yrs. Otbers vary. Pass is very good, bullet proof in fact, but with all ss equipment, one transistor failure, replacement is not cheap, sometimes more than used price of the piece. A friend had the krell mda 300 fail...try 2800.00 on for size. That is why I go for tubes, tubes are cheap. Sometimes though, only ss can do the job. Pick your poison....jallen

Many new electrolytic caps are + or - 10-20% and they are usually further out of spec after 10-15 years. They may still work, but they are cheap, why not just replace them. I like Spragues or F&T. If they will fit, I use v-Caps in coupling or input cap locations. They are soincally just superb. I have had a few Illinois electrolyics leak, the brown goo, and replaced those. But, they were 15 years old or more. Jallen