I've been using the Yamaha YST MS50 speakers and subwoffer for over a month now and getting good clear results. I use the system in hall that hold up to 125 people with no problems. The clarity is great and bass response more than adequate. I bought them from buy.com for $82.53 and will receive a $20.00 rebate. I purchased a sports bag from Walmart and carry all three speakers in that plus my mic and cable, plus a four outlet extension cord. If i do a larger i connect them along with my Roland 60 watt amp and that fills a much larger hall with good results.. Bob