Typical lifespan for a 5 channel power amp?

I actually reached out to Simaudio and they replied right away. They said since this unit came out in 2001, every single one of them is still "active". They only see about 1 a year for servicing (and he said it's usually because someone shorted a binding post or defective startup). He recommended if I have an opportunity to be without the amp for a few weeks I send it to them for cleaning and calibration...WHAT??? I can't go without this thing for 1 day, LOL!!!

@perkadinI  Thank you for the kind words and info...What Danes do you have? 20+ years ago when I started out in this hobby I went through all the usual's (DefTech/Paradigm/PSB/B&W) and someone recommended Dynaudio. Literally the minute I listened to the Audience 82's it was game over. I remember thinking I didn't even know speakers/sound could get this good. I still miss my Audience speaks, but the Evokes have filled that hole more than adequately :)...

 @jl35 I honestly LOVED the 1095 more for music than HT actually, lol...There was something just pure magical about the Dynaudio/Rotel combo for me back then. I loved that amp!

I have the Contour 1.8's, 1.1's and center. Like the Sim gear, Dynaudio overbuilds their speakers and are built to last.  At one point I had them set up in a HT configuration but now they are in two separate rooms after moving. So I have a 3ch HT setup and use the 1.1's with a tube amp in the bedroom.  It's nice having a secondary system, and I was pleasantly surprised how well the 1.1's work with tubes in triode. I think their relatively flat impedance curve really helps.  People make a huge fuss over sensitivity and tubes but there much more to it then spl levels.  

20 years or more for a solid state amp is not unreasonable.

The biggest issue I can think of for multi-channel amps is ventilation.  Shoving 3 additional channels in the width of a traditional 2 channel amp is a challenge for space and air flow. If they are put in a tight rack with little air flow they probably won’t do as well as an open shelf.

@perkadin the Contour's are my next step after I win the lottery, LOL! I've never even listened to them and I don't want to because they're outta my league and I love my Evokes so all that will do is mess with my head:)

Thanks @erik_squires  I have the ventilation piece covered (uncovered actually:) as the amp is on its own stand beside my entertain ctr...so it's got plenty of breathing room...

Hello,

I believe I have some good insight for you,  I'm a SimAudio Dealer and not too long ago acquired a pair of the SimAudio Moon Rocks.  They worked well when I got them , but not perfect. I ended up sending them to the factory to  have them completely gone through.  They cleaned up the insides, went though the amps and had to recalibrate both amps as they were well out of spec after 15-18 years of age. They now sound much better and also got rid of some small background hiss.  I would say do it as long as figure a proper shipping container.

 Now the big decision is do I keep them or put them up for sale. They would surely be a nice addition to the system I'm building.