It's always been a trade-off for me between the sound of a great 2x12 cab and my love of 100 watt heads. Don't get me wrong, I've got at least one of my old 4x12 1960 Marshall cabs that I have kept around for what they do, but I kinda prefer 2x12 cab's because of the way they push air in both directions and get some cool resonances going on that the 4x12's have a harder time with in some applications. There are pleanty of times when I want to run a Marshall 100 watt head through a 2x12... It also seems that my favorite speakers are mainly the lower wattage Celestions (G12H30's, G12M's, Blues, etc) I've been playing for a long time (since the 60's) but I haven't found a speaker that sounds as good and still handles 50-60 watts per speaker to handle the power of the 100 watt head... I'm interested in what your favorite speaker alternatives are in a 2x12 cab that wouldn't blow up with my 100 watt heads?