1 1-3/4 in. x 19 x 30 Great GRAMMA v2 Isolation Platforms Built on the success of the GRAMMA v2, theGreatGRAMMA v2acoustic isolation platform is almost 30% bigger to float large speaker cabinets. Now 4x12s, 15 in. speaker cabinets will benefit from the awesome GreatGRAMMA v2.Only GreatGRAMMA v2 can handle the big rigs! or 18 in.
Personal Protective Equipment (PPE),Hearing Protection,Sound Control and Acoustical Absorption
GreatGRAMMA
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