[BobbyChicken]

I have a pair of edition 9's i need to get amped. Here's the thing: I'd like to get the sq of a desktop amp in a portable package. I don't need small. They amp could be just as big as any desktop amp; it just has to run off a battery so i can take it outside with me, on car rides, and that sort of thing. Would I be able to run a high-quality amp, such as the beta-22 off a battery?

 

[MrSlim]

I would say, probably not. The Beta-22 boards need a 24 v(+ and - ), so has a swing of 48 volts with a 200Ma draw per board. You would need a lot of batteries. I was going to suggest the CTH that is being prototyped right now, but even it needs 24V AC to run it..
You might be able to find someone to design a supply that would take 12V DC in from a car battery and use a voltage doubler and some kind of switcher to convert it to AC, but it seems like a lot of work..

You are probably better off getting something like a Mini3, which is very well regarded..

 

[FallenAngel]

PPAv2 with battery board.

 

[compuryan]

You can easily buy a power inverter for your car to run any AC device from your car's DC outlet. But if you actually want to go mobile (like walking around) listening to a beta 22, that'd be tricky. Plus you'd get crap from people in the DIY forum wanting you to move the power supply section of the amp into a separate suitcase to eliminate hum

.

 

[MrSlim]

one of these: http://www.head-fi.org/forums/5500884-post4525.html

 

[Kees]

The Amphora is battery powered and transportable in size.