I have a Thunderfunk 420 I bought from Dave Funk about 6 months ago. He added all the extras and freshened her up for me twice. She is pretty much brand new in my opinion. I want to get the 550. So, I am selling this amp and its Gizmo case for $750 plus $15 shipping. Firm. Also selling MY RAEZER EDGE CABINETS--ALL MADE BY DECEASED RICH RAEZER, and they are certainly investments and collector cabinets. The Bass 12-400 is loud as hell and a monster. $800 plus shipping, only weighs 35 pounds! The Bass-10 coupled with the Bass 12 is incredible tone. $650 plus shipping. Both come with leather covers. Excellent condition. Never been pushed with the Thunderfunk, always set at a gain of 2 and volume of 5. Only weighs 30 pounds! I just want to get some serious cabinets for my rock band--maybe a 4x10, and these just won't be used.