The Professional's Source
800.606.6969 / 212.444.6615
Auralex GRAMMA Sound Isolation Riser for De-Coupling a Combo Amp, Speaker or Subwoofer
The GRAMMA Sound Isolation Riser (Gig & Recording Amplifier & Monitor Modulation Attenuator) is an incredibly effective device that's used to decouple a combo amp or 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 effect will be severely diminished.
GRAMMA comes complete with a carrying handle, road-ready carpet, Studiofoam Wedges (underneath) and PlatFoam (underneath.) One to two GRAMMAs will support most amps, speaker cabinets, theater subwoofers and monitors. An optional GRAMMA gigbag is available.
| Capacity | Weight Limit: 300 lb (136.1 kg) |
| Dimension L x W x H | 23 x 15 x 2.75" (58.42 x 38.1 x 7 cm) |
REVIEW SNAPSHOT®
by PowerReviews(based on 7 reviews)
Ratings Distribution
100%
of respondents would recommend this to a friend.
Pros
- Easy to use (4)
- Good audio (4)
- Lightweight (3)
Cons
Best Uses
- Professional recording (3)
- Reviewer Profile:
- Experienced (4)
REVIEWS
Reviewed by 7 customers
Sort by
Displaying reviews 1-7
Pros
- Clear Sound
- Compact
- Easy To Use
- Lightweight
- Tight accurate bass
Cons
- none
Best Uses
- Amateur Recording
- Events
- Home Studio
- Professional Recording
Comments about Auralex GRAMMA Sound Isolation Riser:
I have a High-End Boutique 1X12 combo that already sounded excellent sitting on the floor in my sound room on carpet! I knew that the carpet was working against the actual tone of my amp! The GRAMMA Sound Isolation Riser really smoothed out the overall frequency response of my amp but the most instantly noticeable improvement was how accurate and tight the bass response was with my combo amp sitting on it! WOWSER! The best $ I have ever spent in my 35 years of playing guitar!
Pros
- Clear Sound
Cons
Best Uses
Comments about Auralex GRAMMA Sound Isolation Riser:
Bought 3 for my theater system; Sub and left & right speakers (Martin Logans). My media room is upstairs and carpeted over wood so I had a lot of boominess. There was better clarity in my speakers but the main difference was with my sub. It was already a great sounding sub (Outlaw LFM-1 EX) but was a little loose and sometimes got boomy and muddy. The GRAMMA tightened up the bass and cleaned it up nicely. I am also a guitar player but haven't had a chance to test it with my Mesa Boogie but I have no doubt it will work great.
Pros
Cons
Best Uses
Comments about Auralex GRAMMA Sound Isolation Riser:
We purchased these for our church platform - for guitar amps and floor monitors. They have made sound improvement as anticipated! Thanks!
Pros
- Easy To Use
- Low Distortion
- Versatile
Cons
Best Uses
- Home Studio
- Performances
- Professional Recording
Comments about Auralex GRAMMA Sound Isolation Riser:
Those Isolation Riser by Auralex are the best ways to improve the sound of your subwoofer. You got the message, no need to say more.
Pros
- Easy To Use
- Lightweight
Cons
- none
Best Uses
- Home Theater
Comments about Auralex GRAMMA Sound Isolation Riser:
I would highly recommend this product. It definitely made the bass from my sub in my home theater sound a lot tighter and less muddled.
Pros
- Clear Sound
- Easy To Use
- Lightweight
- Versatile
Cons
- Cost
Best Uses
- Home Theater
Comments about Auralex GRAMMA Sound Isolation Riser:
I use the GRAMMA under my Velodyne DLS-4000R subwoofer in an apartment with paper thin walls and it significantly reduces the sub sounds from vibrating everything and annoying the neighbors easier. The subwoofer is now clearer and is useable in an apartment setting. It will definitely decouple your sub (or whatever you put it under), but it is a little pricey for a carpeted piece of wood sitting on some simple foam. I'd buy it again, but I think it's overpriced.
Pros
- Clear Sound
Cons
- Bulky/Heavy
Best Uses
- Professional Recording
Comments about Auralex GRAMMA Sound Isolation Riser:
Seems to work pretty well for my sub. When on the floor, the house "adds" extra sound to the bass. When on this pad, the bass is cleaner and more clear. Guess it works!
Displaying reviews 1-7
Cases & Protection
- Price: $29.99
Room Analysis & Correction
Show more >
- Price: $229.99
Books & Tutorials
Show more >
- Price: $21.95
WHY SHOP AT B&H
Make your online shopping trip personal with our online Live Chat representatives. You can easily reach an in-house expert while browsing our site for your shopping needs. We have the most highly-trained staff in the industry who are pros in their fields, and their professional expertise will help you get the most from your purchase.
Place your domestic order with us for shipment via any UPS, FedEx Economy, or FedEx Priority shipping methods by 4 PM ET Monday through Thursday or 11 AM ET Friday and your order will be shipped that day. Visit our Shipping Delivery Times page for further details. Delivery times are subject to payment verification.
We appreciate your purchase from us, and we understand that sometimes the products you buy don't turn out to be the right choice for you. We guarantee your peace of mind with our 30-day return policy. With no standard restocking fee and few restrictions, you'll enjoy a return process as easy as shopping with us. Please visit our Return Policy page for further details.
We've made iPhone and Android mobile apps available for your service and shopping convenience. Use filtered search to find and purchase almost any item we sell and ship worldwide. Download product manuals and guides for many popular items. See high-resolution product images in close-up detail. Manage wishlists and view order history. Visit our Mobile Apps page to download.
See sample Newsletter
Help
Company Information
B&H Resources
