How should I convert my single Fe103 based RS speaker to a portable sound device?

[Spasticteapot]

I snagged a FE103 based speaker on eBay for about 11$. I have yet to test it, as all my amplifiers would probbably make it go "foom", but I should have a new T-amp here soon enough anyway. The build quality is very good, though, and being made of wood, it also appears pretty durable.

What I would like to do is convert it to a portable speaker. Sure, it's only mono, but it's good quality mono vs. crappy stero which may as well be mono anyway.

What I'd be needing is a small, cheap amplifier that can be run off of 7.4v (if possible; I might be able to wire a larger LiIon pack if necessary) and a simple mixer to turn stereo into mono. Batteries are not a problem - I'll probbably use a 1.3-2.6 amp-hour lithium pack, which should allow me plenty of runtime.

[Scioneer]

what model RS speaker was it?

[Spasticteapot]

Originally posted by Scioneer
what model RS speaker was it?

A "Solo 103".

I'm thinking about ripping it open and adding a spare 6w/channel JBL amp I bought from ApexJR. Anyone know a good way to turn a stereo headphone jack output into mono? Perhaps a simple mixer?

I think it runs on 9-10v DC, so 3 LiIon cells would work in series if I had a protection circut.