Numark Micro Stereo Booster Amplifier

This is a portable amplifier with a pair of speakers, intended to be used with a Walkman or other line source. The model number is BA-2200, but in the instruction manual it says XL100, so maybe they re-named it for some reason. Anyway, it was made in Japan for Numark Electronics Corp (Edison NJ). It has a nice, all-metal case with a brushed aluminum front. Power is provided by two Rohm BA514 amplifier chips, each protected by a 0.75 amp fuse. You can use 6 D-cell batteries, or a 9V 800mA adaptor.