Auralex GRAMMA II Acoustic Isolation Platform for Amplifiers

Float your amp or speaker cab on the GRAMMA II platform to ensure a clear signal free from unwanted resonance. It's a great tool for studios and stages!

The GRAMMA v2 (Gig and Recording, Amp and Monitor, Modulation Attenuator) is an incredibly effective patented device that's used to float an amp or loudspeaker. This highly effective isolation platform features an Ozite covering over an inert structural layer that floats on a 1.75" pad of acclaimed Auralex Platfoam. This carefully engineered studio and live performance solution allows the true sound of your amp or loudspeaker to come through by negating resonance artifacts that can muddy up the tone of your amp.

GRAMMA yields nearly total acoustic isolation, resulting in a purity of tone that has to be heard to be believed!


- A tighter, more focused low-end
- Hear the true sound of your amp, loudspeaker or subwoofer
- Instantly improve your sound on-stage or in the studio
WARNING: Cancer and Reproductive Harm -

- Dimensions: (L x W x H) 23" x 15" x 1.75"
- Weight Limit: 300 lbs.
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 6.25 lbs
Shipping Dimensions: 25 x 16 x 2 in
Manufacturer Part Number (MPN): GRAMMA-II

For support or warranty questions, please contact the manufacturer:
Phone: 317-842-2600

Reviewers gave this product an overall rating of 5 out of 5 stars. (1 ratings)
Submitted August 3, 2015 by Michel B in Stamford, CT
"Must Have for Serious Musicians"
Overall: 5 out of 5 stars
Verified Customer zZounds has verified that this reviewer made a purchase from us.
Very useful in studio environment as it takes away possible vibrations coming from the floor. Also, useful for live settings. Have you ever played on a stage made of 1/4" plywood? The rattle from the plywood goes away if you put your cab on top of a GRAMMA mat. Try it! After trying it, you will not go back.
Musical Background:
25 years plus bass player
Musical Style:
Classic Rock, Blues, Pop
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