YAMAHA BBT500H - INFO, Please

[Lowbrow]

I've come across one of these heads and I'm intrigued by the fact that the user can custom set each tone knob with a center frequency of his or her choice - what a concept - a tone stack tailored to the desires of the player! The fact that it does 2 ohms is a plus for me, too, giving the cabs I currently own.

Anybody out there ever use one of these or have any informed info to share? I've found a few mentions here on TB, but the best would be a 2-years-down-the-road assessment from an owner. That aside, I also welcome rumors and speculation.

Thanks!