The other day I was looking for a set of replacement mains for a friend's band and stumbled across a couple of winners from Carvin. 3-way, with superior internal volume and crossover, light and built with the same methods and materials the expensive lightweight cabs have - but so much cheaper it's ridiculous. Great midrange cone driver, superior neodymium tweeter/horn... Even after replacing the decent lead-sled woofers with lighter and higher-spec Em Kappalite 3015LF these babies would come in cheaper and have top-notch bass guitar performance.
Here's the 115. It seemed suspicious that it was only 24" tall. I checked with Carvin and it turned out that it's 28.75" tall, 15.5" deep, 18.75" wide.
http://www.carvin.com/products/single.php?ItemNumber=LS1503&CID=LS