Speakers compatible with DENON DRA550

Nice receiver. Good design and build quality.

At 50 wpc, it will drive many speakers depending on how loud you like it. If you like it loud and very clean, whatever current model Klipsch dual 8" woofer with tractrix horn would be ideal. These are amazing speakers. I normally spec the reference series and use them in my bedroom (the same ones I am suggesting to you). I think I just installed RP-8000F for a very discerning person. They were blown away. Your Denon is clean enough. These speakers will definitely expose issues with your electronics.

I used to be authorized warranty for Denon, and I rebuild and enhance audio electronics professionally. I was also authorized warranty for many (actual, real) high end brands of audio equipment and recording equipment.

-Chris