Solid State to replace Audio Research REF110?

I suspect the Pass Labs XA30.5 Would be a good match with the 90 db sensitive Proac Speaker. It's 4 ohm nomlnal load shouldn't be a problem for this highly regarded SS amplifier. I don't believe that the Proac is considered to be a hard/difficult load and in fact many drive them successfully with tube amplifiers.
Charles,

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Djcxx, that was my experience also.
Tubes are a hassle!
They sound good, but I'm now happy with solid state now and have not looked back.
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I found a Pass Labs XA30.5 in the second hand market and bought it. After some setup with cabling I find it sounds really well, mid bass is characteristic of solid state, it remembers me the AR 100.2 I had some years ago. Mids are very good, maybe not as good as REF110, and highs are very clear without sounding hash or analitical at any time. Soundstage is terrifing, I would say in the same league than REF110.
I have to listen it and take conclusions if it is enought satisfactory to replace the REF110. Both amplifiers sound different but enjoyable, I think.

My other doubth is if a Pass Labs XP-10 preamp could sound better than my AR REF 3 with the XA30.5. Maybe I will open another post.

Many thanks for posting and give advice.

Ayre - can't think of another amp that would be comparable

I guess I would ask the OP if the blown tube was an ARC tube, or from a different seller. ARC stands by their tubes and offers a warranty for a time period to include repairs. I have owned five different ARC tube amps, VT100mk2 through my current Ref150. The only time I had an issue was when I bought tubes from another supplier to save some cash. That cost me plenty, so I recommend ARC tubes for ARC gear.
Also, ARC does not fuse the amps in this way for performance reasons. If you want a lower performing tube amp which will blow a fuse, those are available.
I will say that I am seeing these solid state amps recommended as alternatives and having owned many of them, well, they are not in the same ballpark as your Ref110. That said, I do own an Ayre VX-5 which is a great solid state amp. Note that this is NOT the V5xe.
Just my .02