What about the Ascend Acoustics Sierra Tower, has a similar number/compliment of drivers, 2 woofers, 1 mid, 1 tweeter, (compared to the M60) with the dome tweeter it does cost 25% more, both companies are ID businesses. Compared to the M80 the price is more similar but the M80 has double the Mids and Tweeters. The Ascend with the Ribbon Tweeter is similar in price to the M100 Just a suggestion. Jeff