Hey guys, still looking to find my dream tone. I bought two 15 inch mesa cabs with powerhouse speakers in them at 8 ohms that each can apparently handle 600 watts. So the cabs arnt an issue anymore hopefully. Im looking to buy either a 400+ or a M2000 id like to hear what you guys would recommend and maybe ur thoughts on the sound comparisons between the 2? im def into the all tube tone and got good advice on hear about the 400+ over the M6. I play prog rock music similar to tool mixed with mars volta (myspace.com/mindtheband) and the tone on the recording is my old amplifier (some type of hartke with a tube in the preamp). I like a very nice bassy sound with a boost in the low mids, almost no highs what so ever. Im looking for a better sound then this recording obviously and want to hear what you guys think! Thanks!