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Amptweaker PressuRizer Compressor & Boost Pedal


A little of what you want

Despite only being around since 2011, Amptweaker has decades of experience in always focusing on what the player wants, you can even give them suggestions on their website. And apparently what the modern musician really wants is Sustain without compression.

The PressuRizer is the latest pedal from Amptweaker which is rising to the occasion.

Take Control

There are more knobs and switches on this tiny pedal than you’ll see on the Starship Enterprise, including Boost, Bloom and limit. All designed to give you control over wet/dry blending, boost and even side-chain compression options.

Blooming Marvellous

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.

Push it to the Limit

Push the Limiter on the PressuRizer and let your tone break up something like an output tube.


A really nice touch is the 2-step footswitch; switch it off and the PressuRizer gives you true bypass. But, press and hold the switch to lock the compressor in, then, when you need it, kick your boost in with an extra tap. This lets you keep your compressor on all the time, or not – the choice is up to you.

The Pressure’s on

There’s so much packed in to this pedal, you can take control of your Attack, Compression and Boost all squeezed in to this retro pressure boiler of a unit.

Here's what Amptweaker say about the PressuRizer

Sustain without compression…..a common suggestion Amptweaker™ receives that means “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.

Since many always leave their compressor on, the PressuRizer has a cool 2-Step footswitch….normally it’s a true bypass on/off switch, but if you press & hold the switch, it locks the compressor on, and then tapping kicks in another boost knob on the side of the pedal.  So you can get a 1–2 punch with a single button pedal!


  • Sustain, Tone, Master Volume controls
  • Tone boosts highs or cuts mids of the compression
  • Bloom switch sets compression swell to Fast/Off/Slow
  • Wet/Dry Blend control to help preserve attack
  • FET output Limiter/booster with Soft/Off/Hard settings
  • Press & Hold footswitch to access extra Boost knob
  • True Bypass switching
  • Runs on 9V to 18V batteries or supplies–9V provides harder FET limiting, while 18V is more open and less distorted, and provides more dramatic compression.
  • Thumbscrew removable bottom with holes for tie-wrap or screw-in pedalboard attachment methods
  • Current:  13mA with at 9V, 15mA at 18V
  • DC Adapter jack, standard 2.1mm X 5.5mm, center ground(-)
  • Weight: 9 ounces, Dimensions: 2.7"W X 4.65"D X 2"H
  • Made in the USA
  • 5 Year Limited Warranty
Inc. VAT

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