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Well lets see. I guess I'm fairly happy with the way my system sounds, and have been for quite some time.My speakers have gone through some DIY revisions, but were originally bought in 1994My SS Amp is about as old, but I have a newer tube amp I swap into.My preamp is perhaps 10 years old now.Turntable's about 7-8 (but the tonearm and cartridge are newer).My digital stuff is also way modded but the original manufacture date is about 2000.On the other hand I also have "old" stuff I'm using, like a mid 1980's vintage NAD 3155 integrated amp that I recapped this winter. It sounds marvelous again! And a Teac 4 track reel to reel (the top end rolloff is more due to the age of the tapes than the tape deck, but Oh!, how musical).So why shouldn't good equipment last a long time? I never really understood the need to change things just for the sake of changing, unless you're not satisfied with the overall synergy/sound. Hunting for grails is just expensive and wrought with unobtanium.Enjoy,Bob
If I pay $300 for a toothbrush, I expect it to last a long time. If I pay $300 for a car, yeah, probably something is going to go wrong. It's not a pure dollar amount - it's the cost vs the functionality and usability.
I think the warranty period suggests the longevity of a product. The length of the warranty is the manufacturer's assurance that the product should be trouble-free for at least the stated period of time.
To date there is no known time limit for decay on the actual transistors, or integrated circuits. Then again, as happens so often on consumer audio forums, someone with lesser experience and education will be happy to tell you different.
Quote from: Dan Banquer on 24 May 2007, 01:39 pmTo date there is no known time limit for decay on the actual transistors, or integrated circuits. Then again, as happens so often on consumer audio forums, someone with lesser experience and education will be happy to tell you different.Dan,I hate to disagree with you at the risk of being labeled inexperienced and uneducated, but there are very well known failure modes in integrated circuits and most manufacturers only guarantee their parts for a fixed period of time. Typically, commercial parts are rated for 100KPOH (100,000 power on hours) at 85C which translates to roughly 10 years of continuous operation.In fact the engineers know the tradeoffs between reliability and performance very well and push things just to this edge. Take a look at Electromigration in wikipedia http://en.wikipedia.org/wiki/Electromigration. Two other primary wear out mechanisms are hot electron degradation of the gate insulator and TDDB (time dependent dielectric breakdown) of the gate insulator.---Gary
When you pay $300 for something that has no equivalent for under $1000, then you're buying the bottom of the spectrum.