That unit is 200 watts at 4 ohms. I don't want to buy two 8-ohm speakers like I had with my GK rig. Finding a 4-ohm used speaker is a bit harder too I think, at least in my area. I had two Backline speakers and I thought they were dreadful, especially the 15-incher.May I suggest a GK400RB as an amp, which you should be able to get for $200-250 and almost any decent used 112 or 115 cab?