First Look: Dr. Z Amplification Z-PLUS John BohlingerNovember 27, 2017VideoPG's Review Demo specialist John Bohlinger plays a pair of Les Pauls and a T-style to see how good this 6V6-combo co-designed by Joe Walsh truly sounds.featured-storieswhats-newvideostube-combo6v6first-lookjoe-walshspecial-featured-storiesampsreverbdr-zgearGearAmpsFirst LooksVideosReviews