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DO

GUIDE

DO

 Check the Box

QTY PRODUCT

PART NUM.

12

Screws

N/A

12

Plugs

N/A

4

Screws

N/A

1

O-ring

N/A

1

Gasket

N/A

5

Waterproof Wire Nuts

N/A

DO

 Prepare the Site

1. Dig a hole to bury the speaker. Refer to the illustration that follows for details. Choose a

location that will not fl ood with standing water and where the tube and cap assembly will 
not be affected by an in-ground sprinkler system. The installation must comply with all 
national and local codes.

NOTE:

 The hole must be deep enough to allow a 2 to 4 in (51 to 102 mm) layer of drainage 

material (sand and gravel mix or other material approved by local codes) and position the 
base of the speaker 13 to 17 in (330 to 432 mm) below ground level.

2. Run the cable from the audio source to a listed and acceptable junction box at the

speaker location while observing all local codes. If the cable is to be run underground, it is
advisable to run it through PVC pipe.

NOTE:

 The cable exiting the speaker is approximately 3 ft (1 m) long. Ensure that the

junction box is close enough for the speaker cable to reach inside.

AIR_IGS82T

Air

®

 Dual 8” In-Ground Subwoofer

DO

 Assemble the Speaker

Refer to the illustration of the Crestron

®

 Air

®

 Dual 8” In-Ground Subwoofer that follows these 

procedures for details on assembling the speaker:

1. Place the supplied O-ring in position on the top 

of the 

cover.

2. Using a Phillips screwdriver, attach the port tube and cap assembly to the top of the

cover with the four stainless steel screws (A) supplied. Apply even, hand-tight pressure to
compress the O-ring at the port tube base.

3. Ensure that the gasket is securely in position on the underside of the cover (the rounded

 

side 

toward the top 

of the 

cover). Place the cover on the speaker base assembly, and attach it

 

using the 12 screws (B) supplied. Torque the screws to a maximum of 19 ft-lbf (25.76 nm).

CAUTION:

 

If the screws are over-torqued, they may strip the threads of the plastic

housing, and the water-tight integrity of the unit may be compromised.

NOTE:

 Do not insert the plugs (C) at this time.

2 to 4 in (51 to 102 mm)
Sand and Gravel Mix Per 
Local Code for Drainage

13 to 17 in

(330 to 432 mm)

Ground Level

Local Soil

Stainless Steel
Screws (A)

Screws (B)

Plugs (C)

O-ring

Port Tube and Cap Assembly

Cover 

Base Assembly

Gasket

Audio Cable

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