Jen Majura, Gretchen Menn, Tina Guo: set for ENGL amps NAMM 2017! on January 12, 2017 Get link Facebook Twitter Pinterest Email Other Apps Engl Amps Don't miss the signing session of these gorgeous ladies! ENGL endorser Jen Majura Official /Evanescence, Gretchen Menn and Tina Guo! Saturday, January 21st at NAMM 2017! Booth #5824