Avalon

HI Vicweast,

I think you have reached the right decision.  The Ayon Audio Triton III should be a significant upgrade, and I certainly recommend you demo it if you have the opportunity (although you may need to run in pentode to really drive the Eidolons).  However, at that price (I believe the Ayon is $11k retail), there are three other options I would recommend you consider.  

First, for solid state, the Symphonic Line Kraftwerk and Kraftquelle integrated amps are exceptional pieces, will be dead quiet, and are very good pairings with the Avalons.  Second, also solid state, and reflecting your preference for Parasound, the JC-1 amps would also make a very good pairing with the Avalons, coupled with an appropriate preamp.  Finally, if you want a call it quits, "end of the line" system, get a used CAT amp and preamp (which you can get for ~$7-11k used), and you are done -  I have literally spent triple that price of that setup (i.e., Avalon and CATs) and not equaled the performance.

Best of luck.

@rzado The price of the Ayon Audio Triton III (pristine demo unit) was "too good to pass up"...

Vicweast - I hear you, and the Ayon is still a great choice; I am sure you will enjoy the combo.  Let us know how it works out; just watch out for your back when you pick it up - its pretty dang heavy.

Well, yesterday the FedEx truck came. The Ayon Triton III box weighed 133 pounds. I had help from the FedEx guy in getting the box into the front hall but from there...

It has been cold here and once I managed to lift the amp out of the box (when lifting it, its an ungainly monster that is back-side heavy) I let the electronics acclimate to the house for several hours. I also made a high-end zip-wire set of speaker cables and hooked it up to a set of nice but sacrificial Energy speakers. (I'm going to try to keep my Avalons from blowing up with new gear.) After the right amount of anticipation: The switch was flipped! 

I am quite happy with the initial results, so much that it only took another two hours to replace the Rogue amp with the Ayon!

OK, so now things sound great ...mids and highs are well articulated and in triode mode sound very well defined and airy. Bass is big, very big on big bass tracks.
I am running AntiCables Level 3 ref from the amp to the speakers. These cables are solid copper (shotgun approach w/2 12 AWG conductors for each + and - per side).
The Rogue amp did not produce this amount of bass, but with the exact same setup, the Ayon Triton III produces lots of bass. I have a limited ability to pull the speakers forward from the back wall (to reduce the bass) and when I do it alleviates the amount. ...But cables may help also.
What do you think about an approach using silver per the tempo electric/vinyl tourist "Big Twist" recipe? For my cable length that would mean two 12 AWG silver conductors per side, each in an oversized Teflon jacket, terminated bare on both ends. The price is great for this versus a Cardas circus or similar ilk "maintain the Mercedes for 3 years" cost.