In my email today I got a specials list from MCM and there was a 8" high excursion (55-2421) located http://www.i-mcm.com/Search/sku5.jhtml?SKU=55-2421 It looks very similar to the W8 from nuera http://www.tb-speaker.com/detail/w8-740c.htm. I'm thinking the mcm is made by nuera. It seems the mcm woofer has a higher xmax, lower Fs, and higher sensitivity. Wouldn't it be a better woofer? It's cheaper too.