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Auralex Great GRAMMA V2 Speaker/Amplifier Isolation

Discontinued, this product can no longer be ordered.

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Auralex Great GRAMMA V2 Speaker/Amplifier Isolation
Product no: 9000-0014-3459 Bax Music Warranty: This product comes with a manufacturing defects warranty.

General

The Great GRAMMA V2 is Auralex's high-end isolation panel for large speakers, monitors and amplifiers. At 30" by 19", the panel offers ample space for any 'oversized' speaker cabinet while the 1.75" thickness is more than enough to keep the surface below the panel from resonating along with your speaker or bass amp.

The Auralex Great GRAMMA V2: Superior Acoustic Isolation for Any Enormous Stack

The superior acoustic isolation this ISO GRAMMA Series isolation platform offers results in beautifully defined mids and clear bass - no matter how hefty your stack is. The GREAT GRAMMA V2 can support up to 136kg worth of gear and features a durable carpeted surface as well as a strong handle for easy, comfortable transport.

Specifications

Product features

Monitor isolation panel width	760 - 769 mm
Monitor isolation panel depth	480 - 489 mm
Sustainable product	not specified
For number of speakers	1
Max. speaker weight	135 - 139.9 kg
Max. bearing capacity (kg)	000
Monitor isolation type	guitar/bass amplifier isolation

Weight and dimensions including packaging

Weight (incl. packaging)	5,3 kg
Dimensions (incl. packaging)	79,0 x 51,0 x 5,0 cm

Product specifications

amplifier/speaker isolation
maximum weight capacity: 136kg
dimensions: 30" x 19" x 1,75" (W x D x H)

A review can no longer be written about this item

Barry Pearce January 28, 2025

Wrote the following about Auralex Great GRAMMA V2 Speaker/Amplifier Isolation

I play bass and noticed in rooms with suspended wooden floors and wooden stages there is a lot of boom - so much so the sound of the bass is completely different from solid floors. My stack is a 1x12 on the bottom with 2x10 on top of it. I placed the Gramma on the floor and the 1x12 on the back leaving an area of the Gramma in FRONT of the cab (this is important as reflective transmission is a factor as well as mechanical transmission).
The result is exactly what I wanted - a huge difference in bass sound - no the sound of my amp/cabs is clearly heard without the mud induced from reflective/mechanical transmission into the floor.
Very very happy - and so are the band who can clearly hear me now!

Reviews from other countries

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Pam White October 30, 2023

Wrote the following about Auralex Great GRAMMA V2 Speaker/Amplifier Isolation

Ik heb hem aangeschaft voor mijn basversterker. Qua trillingen in de ruimte waar de versterker staat maakt niet veel verschil uit. Het doorklinken van het geluid van de versterker is wel iets minder. Dat betekent dat men in de rest van de woning het geluid wel als iets gedempter ervaart. Het dreunt minder door.