For that room size, I'd go with 1038. I have had both 1028 and 1038. 1038 is better in every way. Also do note, 1028 is back-ported (plus downward firing port) but 1038 only has downward firing port. Cross-over points are different and 1038 has bigger cabinet for midrange driver, of course not to mentioned approximately 70% more bass driver cone area (2x6.5 vs. 3x7) with bigger cabinet behind them.
