NAMM '17 - Vertex Steel String Clean Drive, Ultra-Phonix Overdrive & T Drive Demos Shawn HammondJanuary 22, 2017VideoSee and hear how these three stompboxes can get you closer than ever to some mythological amps.whats-newvideosvertexnamm-2017distortionoverdriveeffectsgear-show-demoboostgearGearEffectsVideosNAMMReviews