Gateway Mastering

US mastering studio in Portland, Maine, founded by Bob Ludwig in 1993, with adam ayan as mastering engineer. Also appears as: - Gateway Mastering Studios - Gateway Mastering Studios, Portland, ME - Gateway Mastering Studios, Portland, Maine - Gateway Masterdisc, Portland, ME - Gateway Mastering, Maine - Gateway Studios - Gateway Studios, Maine - Gateway Studios, Portland, Maine - Gateway Sound - Gateway Gateway Mastering Studios operated under the name Gateway Mastering & DVD from July 2002 to June 2016. If the release credits Gateway Mastering & DVD and name variations, please use Gateway Mastering & DVD. If the release credits the parent company Gateway Mastering Studios, Inc. and name variations, please use Gateway Mastering Studios, Inc.. For Authoring credits please use the artist Gateway Mastering.