TEST SERIES Pittsburgh Modular Eurorack Generator GenXpander with Mantic Flex Pro by Outsider Sound Design December 03, 2018 Pittsburgh Modular Eurorack Generator GenXpander with Mantic Flex Pro. For Eurorack, Modular Synthesizers, Effects Pedals, and Noise Makers please visit this affiliate link to our friends at Perfect Circuit Audio. Share Share on Facebook Tweet Tweet on Twitter Pin it Pin on Pinterest