Best 2channel amps for my speakers.

Conrad Johnson,
Don Sachs -Kootenay 120
Bob Latino - ST 125 Mono Blocks

I now have the Sachs Kootenay and it is very good. Dual regulated Power supplies, top grade parts throughout. But usually a 6-8 week wait list. When they come up on used market they are gone in 2 days

Bob Latino’s amps are best bang for buck. His ST-70 replaced a $4500 amp to my surprise. These don’t come up often either.

CJ, "it just sound right" is on target. Haven’t seen one of their amps on the used market in well over a year.

All these have very good customer service. These are all tube and I can recommend without reservation. Just comes down to budget.

One caveat is the 3 ohm dip in your speakers. I'd confer with the mfgs  to confirm their ability with this speaker before you purchase. BTW, those Rel subs like to be connected to the high input via Speakon which you may already know.

@ronboco

With your budget, you should have no trouble getting a proper amp/preamp or and very good Integrated amp. BTW an integrated amp has both preamp & amp. So, if you get a tube pre, you only need an amp. But as I said before, check with the mfg on the 3 ohm dip of your speakers
another mfg  to consider is Raven Audio. I believe their philosophy is high current vs instead of high wattage.  They have a 45 day $ back warranty. You might get a taste of tubes and see if you like it. Just a thought Enjoy. You will have a nice system when done