I want to be able to play my bass through the stero in my office but I do not want to leave my headphone amp there or carry it back and forth from home. I also don't want to spend $60 on another Pocket Rocket. Can anyone suggest an inexpensive, over-the-counter Radio Shack solution. i basically need something to emulate a headphone amp-- give the signal enough of a boost so I can play through RCA auxiliary inputs but not fry my stero speakers. Would aprpeciate some ideas. Thanks.