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Ace by Shattered Glass Audio is a Virtual Effect Audio Plugin for macOS and Windows. It functions as a VST Plugin and an Audio Units Plugin.
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Ace is a faithful digital emulation of a legendary 1950s, American, all tube, tweed, 5W amp. We have added to the model two of the most common amplifier mods: adjustment of the amount of feedback and addition of grid stopper resistors, both of which can be turned off for the original amp sound.

Simple controls and a conservative CPU usage make ACE easy to use in live settings as well as for re-amping.


  • Accurate modeling of the whole circuit to capture dynamic interactions between amp stages.
  • Authentic 12AX7 and 6V6GT vacuum tube models.
  • Models of the two most common amp mods.
  • Adjustable strength of the input signal with up to 12 dB boost.
  • Cabinet simulation that can be switched on or off.
  • Selectable 2x, 4x, or 8x oversampling.

Latest User Reviews

Average user rating of 5.00 from 1 review

Reviewed By Mark Wilkins [all]
August 11th, 2021
Version reviewed: 1.0 on Windows

Nice little Tweed amp in a world filled with High Gain monsters, Have used this on a few Americana tracks and they turned out great. I also am using it with my new Lap steel which I am teaching myself to play. Generally I slap the Devil Spring Reverb by Lost in 70s to give it just that little extra push, .

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Comments & Discussion for Shattered Glass Audio Ace

Discussion: Active
22 December 2015 at 7:59am

this is a GREAT plugin. Pretty much dead on to my peavey classic 50 recorded with a condenser. Only problem is that it doesn't correctly report latency in Live 9. I have to set my track to around -22.7 ms to compensate (at 2X setting).

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