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Silverado and Sierra Subwoofer Box

GMX120X Speaker Enclosure

GMX120

Speaker/Subwoofer Enclosure Specifications
♦Dual 10" or 12" Subwoofer Box
♦Down Firing Enclosure
♦Platinum Spring Loaded Terminal
♦100% American-made GREEN enclosure
Installation: Fits under rear seat, enclosure will protrude about 1 1/2" from under the seat. Removal of jack required.
Note: Mounting depth based on a 6.5” diameter magnet.

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Width
Depth
Front Height
Rear Height
55"
12 3/4"
10 1/4"
7"

 

 

Fits the Following Vehicles
♦89 to 98 and 99 Chevrolet/GMC Classic 1500/2500/3500 Silverado/Sierra Extended Cab
♦Will work on a 3rd door option.

Other Models Available
♦GMX120
♦GMX125
♦GMX190
♦GMX240
♦SGMX107
♦GMX200
♦SGMX70

♦Return to Chevrolet/GMC Enclosures

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Speaker Terminals

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Speaker Grate

Model
(Vb) - Air Volume
per Sub - cu. ft.
Mounting Depth
Hole Openings
Cut Out D
Box Type
Finishes
Dlr Price
GMX120C10
.6
6 13/16"
2-10"
9 1/8" for 10"
Chevy Truck Ext-Cab Sealed
Carpeted
Login
GMX120C12 .6 6 13/16" 2-12" 11 1/8" for 12" Chevy Truck Ext-Cab Sealed Carpeted Login
GMX120R10 .6 6 13/16" 2-10" 9 1/8" for 10"
Chevy Truck Ext-Cab Sealed Raw Login
GMX120R12 .6 6 13/16" 2-12" 11 1/8" for 12" Chevy Truck Ext-Cab Sealed Raw Login
GMX120X10 .6 6 13/16" 2-10" 9 1/8" for 10"
Chevy Truck Ext-Cab Sealed XKote Login
GMX120X12 .6
6 13/16"
2-12"
11 1/8" for 12"
Chevy Truck Ext-Cab Sealed XKote Login