AC adapter for Altec Speaker dock

[StrangeDay]

Hi, I currently misplaced the AC adapter for my Altec Lansing speaker dock. But it'll probably be a rip-off to buy one through the manufacturer!
Do you know the milliamp power consumption on the adapter so that I can just buy one at radio shack?!!
Thanks a bunch!!

[Tomo_kun]

Look at the voltage and the MA output, if its compatable, I'd buy one from radio shack.

[PeterPumpkin]

9V 1600MA on the IM3. Could be different on the original verison though.