amp question

[ItchyD]

I'm rebuilding an old arcade machine with an xbox and I'm trying to get audio out of it. Basically I need a cheap little amp with a volume knob that can go from the red and white audio plugs on the xbox to my speakers which are a pair of bose model 21s. The speakers are 10-60 watts, 4-8 ohms. It would be really great if I could cut the audio to the speakers by plugging in headphones too. Many thanks for any help!