Soundblox Type Q Unit
Soundblox Type Q Unit
Soundblox Type A-1 Unit
Soundblox Type A-1 Unit
Soundblox Type A-1 RF Unit
Soundblox Type A-1 RF Unit

Soundblox® - Low Frequency

Soundblox Low Frequency Acoustical Masonry Units have been specifically designed for low frequency absorption.

See Masonry FAQs


low frequency acmu

Soundblox Type Q

Soundblox type Q units have flared slots which are the same width as the A1 units on the outer face. Metal septa is place in unfilled cavities. They are specially designed for low frequency absorption, optimum sound absorption is achieved at 125 hz.

Left-Hand and Right-Hand Units
For situations requiring a full core for vertical reinforcement, Soundblox units with open cavities on either the left- or right-hand side are available. When used in conjunction with standard Soundblox units, reinforcing bars and grout can be incorporated easily and efficiently. Soundblox left-hand and right-hand units have been approved for use in reinforced masonry construction and are allowed 90% of the shear value of ordinary hollow concrete block.

8"Q Data Sheet

low frequency acmu

Soundblox Type A-1

Soundblox type A1 units have narrow slots and unified cavities. These block are used without any fillers or septa. They are specially designed for low frequency absorption, optimum sound absorption is achieved at 125 hz.

Left-Hand and Right-Hand Units
For situations requiring a full core for vertical reinforcement, Soundblox units with open cavities on either the left- or right-hand side are available. When used in conjunction with standard Soundblox units, reinforcing bars and grout can be incorporated easily and efficiently. Left-hand and right-hand units have been approved for use in reinforced masonry construction and are allowed 90% of the shear value of ordinary hollow concrete block.

4-A-1 Data Sheet
6-A-1 Data Sheet
8-A-1 Data Sheet
6 A1/DBL Data Sheet

low frequency acmu

Soundblox Type A-1-RF

A re-enforceable acoustical masonry unit for low frequency applications.

The new type A-1/RF ACMU makes re-enforcement possible in low frequency (250Hz) applications without using left and right hand units. With an NRC of .50, narrow slots and unfilled sequential cavities, this unit provides excellent low frequency response and a low cost alternative in commercial and industrial projects.

8A-1-RF Data Sheet
8A-1-RF structural properties

10A-1-RF Data Sheet
10A-1-RF structural properties

12A-1-RF Data Sheet
12A-1-RF structural properties

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