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Auralex Great GRAMMA - 30" x 19" x 2 3/4" Sound Isolation Riser for De-Coupling a Large Speakers or Subwoofer - 4 Pieces

B&H # AUGG4 MFR # GREAT GRAMMA 4
Auralex Great GRAMMA Sound Isolation Riser - 4 Pieces

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The Great GRAMMA Sound Isolation Riser (Gig & Recording Amplifier & Monitor Modulation Attenuator) is an incredibly effective device that's used to decouple a large loudspeaker from the floor, yielding nearly total acoustic sound isolation.

The result in purity of tone is significant. An additional benefit is that the sound source, particularly a subwoofer, will no longer resonate through the floor to any space below. While it may still be heard, its sound will be significantly diminished.

The Great GRAMMA comes complete with a carrying handle, road-ready carpet, Studiofoam Wedges (underneath) and PlatFoam (underneath.) One to two GRAMMAs will support 4 x 12", 15" or 18" speaker cabinets.

Auralex Great GRAMMA - 30" x 19" x 2 3/4" Sound Isolation Riser for De-Coupling a Large Speakers or Subwoofer - 4 Pieces
  • Each Shipping Carton Contains Four 30" x 19" x 2 3/4" Charcoal Risers
  • Ninety (90) Day Warranty - Cosmetically Defective Products that are Uninstalled and As-New May Be Returned for Replacement of Like Products Within Ninety (90) Days of Purchase
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    This is a Special order item. Est. arrival at B&H is 7-14 business days (subject to availability). Your order will be charged at time of shipment. Item is non-cancelable and non-returnable.
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