Test of a dual pre amp, all tube, capable of modulating one channel with the other. It can go from warm and clean to very intens distortions.
You hear a small guitar, voice, via this home made pre amp, into a Fender Champion 600 amp and a Studio 10 amp. All tube, all dirty, all nice.
No dogs were harmed during the making of this hardware or the movie. The volumes were kept very low.