well, it works fine w/any new battery ...internaly.
but I wonder about a sled of alkalines. that would certaily be easy to come up with..and cheap. I'm going to talk to Doug today. Maybe the wallwart outputs 6v. who knows. but I think he would.
after all...4 internals is going to be 6v. maybe its operating range is 4-6v, or maybe its stepping the voltage down internaly.
one thing about this deck that sort of sucks...the battery gauge only has two segments. so its either "full" or 1/2. and you have no idea how long that is from there.