SNAMM '18 - Greer Amplification Supa Cobra & Alliance 20 Demos Shawn HammondJuly 6, 2018VideoNick Greer shows us his new high-gain overdrive with three clipping modes, as well as a swell 2-channel amp that combines tweed Champ-style and Brit-combo topologies.el84gearvideossnamm-2018gear-show-demotube-combooverdriveeffectsampsspecial-featured-storiesgreer-ampswhats-newGearEffectsAmpsVideosNAMMReviews