Switching to solid state amp?

Ralph I had my current amps worked on recently and one of them came back dead. So not reliable. I will need to replace.

'Dead' is usually something simple! If the amp was just serviced and was dead upon arrival, it could also be something simple from shipping. If I were you, if these amps have given you reliable service in the past, I would simply get the amp fixed. If you sell them and one isn't running, you're going to take a beating on it anyway.

How old are the amps?

Wooolfie - You one hard man ta troll.

I had a pair of QuickSilver M135 monoblock tube amps for 24 years.  No repairs other than 4 full sets of tubes (& a few fuses blown by over exuberance or an EL34 tube failure).  
I bought a pair of McIntosh MC501 monoblocks, and on the same speakers side by side it was VERY hard to tell the MC501's (SS) from the M135's (tube).  I really think its those crazy output transformers in the McIntosh.  Only other SS amps I've liked Bryston 28B monoblocks. (I've heard several other Bryston amps, but they sounded terrible!)
Now, the MC501's were bought used from a dealer who bought them back from his customer who bought them to replace his VTL tube mono's.  After 6 months he wanted his tubes back.

Ralph the amps are about 15 years old.  These are George Wright Sugnature amps.  Very nice when they work. QS 135 thanks for you info.  QS are quite nice.

I tried to switch back to SS amps for a while, didn't work.  I got tired to the heat and maintenance issues.  At the time, I was using VTL 300 Deluxe MB's. I tried 3 or 4 brands of amps  Bryston and Classe and a few others.  This search went on for a years.  In the end, I purchased another VTL but this one needs very little maintenance. It Fault Protection and Auto Biasing features but it still gets hot.  Then again before the I went with tube amps, I had Krell and they were just as hot.  Years ago there was a thread here titled "Cooking With Krell"  pretty funny posts,