Class A Solid State Sound

Concerning Boulder, I would not say that it's a direct competitor to  Pass Labs.  I heard Boulder at RMAF and it is a pretty neutral amp with only a touch of that bipolar Class A lush/liquidy effect.  The Pass Labs is a FET "warm and fuzzy" type of sound, but with high resolution that is very controlled.

Oh, mijostyn, the Gryphon gear is durable and engineered to high standards. I expect to be running my class A amp for decades. It sounds great, too. 

The Gryphon Colosseum is one of the most beautiful amps I've ever seen and it does not take up a lot of floor space because it is laid out vertically. Believe it or not, the savings in floor space is what sold my wife on the unit. I live in a small apartment and don't have the room for the massive amps from Boulder. Plus, Boulder's prices are insane, as you pointed out. 

George, before the Gryphon I was running James Bongiorno's statement Class A amp from the 1970s, the Sumo Gold. I had it completely rebuilt. It was a 125w Class A amp and gave me eight years of trouble free service. The Gryphon sounds a lot better, as it should, with improvements in various technologies over that time. I sold the Gold for $1k to someone who was glad to get it. 
I've just never liked the sound of MOSFET amps. To each his own.  

 I would never even look at a Gryphon.

Shame, but your entitled to that opinion.
 

A pill! I love that old expression, my mom used it a lot.

Yep, the shoe fits in his case.

Cheers George

It may sound great and be very durable but it still looks silly. 

Cheers Mike

Oh, I would never run anything but a class A amp but I am not sure there is a huge difference between Mosfets and Bipolars having had both. I also run ESLs which are a totally different animal when it comes to drive so my opinion really does not apply to dynamic speakers. The systems I set up are all Planars except for the sub woofers another specialized animal.