I thought I'd start a new thread since my last one wandered all over the place. Well, I took the SB amp to practice last night and it surprised me. Nothing like the Prodigy. It's clean and clear, and can be jangly like Scott said. But you can dial in the bass, set the mids and trebles at 12 o'clock and the presence and gain to a point it has that old timey warmth and slight bit of distortion I remember as a teen. The tone is so much more pleasing to my ear than the Mesa.
Other positives: no big delays in attack, it's right on, the way I like it; no woofing or mushiness; tons of power, nothing lacking there. It's not an easy amp to dial in. With separate presence and volume/gain controls, it's got a learning curve. This one was modded with a master volume on the back so you can jumper the first and second channels and then you plug your input into channel 1 and you can mix in the gains for both bright and normal channels at once. Kind of complicated for a simple bass dude like me, but I'm working on learning how to make it work. I could always have it put back to normal by my tech, but may not need to. It sounds most like my B-15 and I do like the sound a lot so far.
My band mates really liked the sound, that's always a plus too. So, it looks like I'll be experimenting with this and the Orange 1000 for the next few weeks.