best sounding integrated for under 2500.00

I would think a tube amp, most any tube amp, let alone a low powered one, would be a very bad match with the OP's speakers. His speaker likely needs at least 100 watts SS to drive them. SIM Audio is proabably a good match in terms of power and drive - not sure about sonic signature, but something of that wattage and ability to drive low and swinging impedances - not for a tube amp.

Go no further, if you can find a used Cary Audio SLI80 F-1, you can get it for that. The non-F1 version is great as well, and would be a little less if found used.

Great integrated, with plenty of power. Sorry I sold mine.

Yes, great integrated, but not for OPs speakers IMHO. 84db, 2.8 impedance dip in bass region and impedance swings all over the place based on 1997 Stereophile measurements, exactly what a tube amp does not want to see in a speaker.

I've owned a couple of integrateds recently. PS Audio GCC 250, Krell 400xi, TAD 60 tube integrated, the Rowland Concentra that I recently sold FAR outclasses them all. I moved on to more expensive separates and sometimes wonder how much more I'm getting. Plus the Rowland is a piece of art to look at.

Good Luck in your search

I would also say the "V2" model of the Cambridge Audio 840A, even though I'm getting ready to sell mine due to system consolidation. It's a fantastic integrated. I wasn't a big fan of the first version, but the V2 model is outstanding.

Another, that's actually a tad better than the 840A in my opinion, is the Vincent Audio SV-336MK. It's a hybrid integrated with a 12AX7 based preamp married to a 150w SS amplifier section. Outstanding build and sound quality.