Rehashing the Playstation 1 topic - higher voltage possible?

I'm playing around with the original PS 1 and although I like the sound the voltage out is a bit low. Has anyone found a decent line driver of sorts to bump the voltage to CD standards (2v IIRC)?

This isn't a critical listening application, more like something fun to work on :) I'm not the type to solder so suggestions with something pre-built is welcome. This system is the Sony PS1 > AQ Water-series RCA's > Audio Research DSi-200.