Well, i love my merlins and the ars is bobby's choice for a good match at a good price. never heard the amp, but i do know that my Cary 2A3 pp amp (about 15 wpc, i think) seemed to have enough power in a room of similar size (14.5 x 20), but i don't listen much to full orchestra or hard rock so my power demads are not great. You will get an honest 30 hz and the new super bam is a real improvement. if you buy used, you may be a little over the $3k and the superbam upgrade would set you back another $4-500, depending on shipping costs, but well worth it.