Auralex Great GRAMMA Isolation Riser

The great GRAMMA(Gig and Recording, Amp and Monitor, Modulation Attenuator) is an isolation platform riser designed to “float” an amplifier or speaker.

List Price: $93.99

ProSound Price: $84.99

You save $9.00 (10%)!

The great GRAMMA(Gig and Recording, Amp and Monitor, Modulation Attenuator) is an isolation platform riser designed to “float” an amplifier or speaker.
The Great GRAMMA is the bigger vesion of the GRAMMA isolation riser and is 30% bigger, recommended for Subs, 4×12 cabinets, 15” speaker cabinets, etc.
Intended to acoustically isolate the sound source from resonating surfaces so you only hear the “true” sound of your source.
The great GRAMMA is designed with carpet, a carrying handle and with StudioFoam Wedges and Platfoam both underneath.

Dimensions: 30” L x 19” W x 2.75” H
Weight Limit: 300 lbs

*Between our free shipping and double manufacturer's warranty, purchasing from ProSound, Inc. - the pro audio industry experts - is clearly your best value! Free shipping in the lower 48 states, for shipping elsewhere please contact us. Double manufacturer's warranty on products purchased from ProSound, Inc. up to five years max. Click here for more information!