will always provide the major difference in sound for better or worse. I would take my time and audition till I found magic. In your price range and room size I have a fondness for Monitor Audio Silver RX-6's. Just one of many...

Enjoy!

RG

Off-hand, the phono pre-amp might be the way to go. For that range there are some really superior ones out there, though I'd work with someone who knew your TT and cartridge setup to get some specific ideas. The guys at Needle Doctor were super helpful to me when I was ready for a separate phono stage, and steered me right IMO.