The PressuRizer compressor/ boost pedal provides sustain without compression using its special Bloom control. Sustain without compression a common suggestion Amptweaker receives meaning “don’t 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-blended approach that adds compression after a short delay. The PressuRizer is designed to work for both guitar and bass. The Bloom switch (Fast/Off/Slow) rewires the side-chain detector so the signal compresses and then grows when blended with dry, the result sounds normal at first, and then blooms like a great Les Paul. The Tone only affects the compressed signal and boosts highs to cut through, or cuts midrange to help match the ‘blooming’ tone to the dry. The Limiter switch adds a FET booster after the blend, and can be set Soft for barely limiting, Hard for a slightly broken-up sound, or Off for no limiting. This FET limiter has a very rounded breakup, similar to output tubes.