NAMM '17 - ISP Technologies Michael Sweet Signature Theta Pro DSP Demo Jason ShadrickFebruary 21, 2017VideoThe Stryper frontman demos his signature version of the company's programmable preamp.whats-newvideosmulti-effectnamm-2017gear-show-demoeffectsisp-technologiesgearGearEffectsVideosNAMMReviews