I've decided to forego the Eden WT400 (for financial reasons) and I have made my mind up to go with one of following three Hartke's. 4000 - 400 watts, wide parametric EQ with D-Bass (for very low end EQ-ing) and a tuner out with mute switch. 3500 - Classic Hartke Bass head, 350 watts, with 10 band graphic EQ. 5500 - The new Hartke head based on the 3500, but with 500 watts and it's own case with an extra one rack space for an additional one rack device. Has anyone tried the new 5500? If anyone has used any of these amps, any info or opinions on any, or all, of these three would be appreciated. I will be ordering it this week. I have done alot of research into these heads and I've played through the Hartke 3000 and 3500's in the past (but never owned them). I'm not relying on your opinions, but they are helpful. If you've had or played through them, please let me know, in detail, the sound you got (along with what cabs you've played them through) and your likes and/or dislikes. Thanks! GAS about to be relieved!!!