Used the American on my practice amp (Roland Bass Cube 30) and my new bass rig and while it sounded good, I didn't quite get where I wanted to go. Yesterday, I pulled it out of the mix and used the Rigel instead and >BOOM< waaaaay better sound for what I'm after. Not only did the Rigel sound killer with the Roland, it gave my new bass rig that "massive wall of sound" vibe.
After band practice I came home and set the American for return (Amazon) and tried to buy another Rigel, but they're still out of stock...