i tested out a gk today, and i wasnt really impressed with tone, but i was impressed with the power and weight issues. its only 650 at riks music. but then ive read about the tonal capabilities of the iamp800 (i like to tweak). its a lot more money, but is it worth it. and ihave played the eden wt-550, i like the warmth, but is 500 watts a diff. from 800 and 700 watts. mind you ill be using 2 aggie gs-112's. im looking for a warm dub tone to a modern and classic rock tone. plus headroom is a good thing, so thats what gets me about the eden.. so yeah, any of these should be a step up from my hartke 3000. what are your opinions?