Amptweaker PressurizerSustain without compression.. a common suggestion Amptweaker receives that means dont mess with my attack. The Amptweaker PressuRizer compressor accomplishes this in several unique ways, and includes a built in output FET limiter booster, making this a powerful clean tone tweaker. Using parallel studio grade compression with wet dry blend, and some unusual side chain variations, it varies from smooth compression that limits the initial whack to a dry