I have found inmy cases that GK 400RB and 800RB beat the hell out of any eden head. I tried a GK 400RB on Friday night and then a Eden WT-400 on Saturday. The eden head did not sound near as good and had clip lights coming on all night. The GK was 200w less had no clip lights coming on and sounded better to my ears. I was using a 75 Jazz and two Bag End S-15D cabs. with the heads. I think I am going to return my eden 400 for a GK 800RB. Is this a wise decision?