On a tighter budget, I would have a hard time not scouring Craigslist for a used AV receiver. There are so many TOP SHELF receivers that predate HDMI that were absolute beasts. I ended up giving away my Yamaha RX-Z1 because it just had no value to me anymore.
In my area, something like this would be a nice solid foundation to a full blown 5.1 system, but for the short term would give decent power to a nice pair of stereo speakers, and proper bass management for a subwoofer down the line...
Yamaha A/V Receiver HTR-5560, with Dolby Digital EX, DTS, and Dolby Pro Logic II. Tested in good working condition. Asking $40. Please call or text. Seven O'Three 486.8273.
washingtondc.craigslist.org
You could sell it later or give it away at some of these prices without blinking. Plus, the sound doesn't suck and the price is great. If you can get good speakers up front, then pair it with a receiver that is decent, you should get great results with a clear path that allows for upgrades in both the short term, like adding a subwoofer, or adding a center channel, as well as the long term with a new modern AVR with more power.