I recently purchased a set of Peachtree Audio 24T Wireless speakers for use at my small cabin in the mountains. Not a great system, but much better than the little Bose iPod player that was there. Since it has a built-in DAC I just carry a clone of my Roon drive along and go in USB from my Macbook. Sound is very good but I was thinking that a small sub would be a nice supplement. I only paid $300 for the speakers so I wouldn't want to go much higher than that for a sub. There is just one RCA out from the Peachtrees so no real crossover. Just looking for suggestions. Thanks in advance.