Built on the success of the GRAMMA, the GreatGRAMMA v2 acoustic isolation platform is almost 30% bigger to float large speaker cabinets. Now 4x12s, 15" or 18" speaker cabinets will benefit from the awesome GreatGRAMMA. Only GreatGRAMMA v2 can handle the big rigs!

Features:

- 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