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INSTRUCTION SHEET

Part Number

Application:

Tools Needed

2900 North Third Street, Effingham, IL 62401 
800.500.1500 • Worldwide: 217.540.4200 • FAX: 217.540.4800 
w w w.mamotor works.com • generalmail@mamotor works.com

 

©Mid America Motorworks, Inc. All rights reserved.

119-202

RetroSound

®

  

SUB-8100 Active Bass Subwoofer

Any 12 Volt System

To ensure proper operation of this Retrosound produce, please read these 
instructions carefully before using and installing this powered subwoofer.

This Owner’s manual does not cover all possible installation scenarios. If you 
feel you can’t install this product yourself, please take it to a local car audio 
professional, or contact us via at [email protected] or  
call 909-364-1372 | 888-325-1555.

IMPORTANT! 

This device is a high-power audio amplifier intended for  

installation in vehicles with a 12-Volt negative ground electrical system.  
Connecting or operating the amplifier with another type of electrical system 
may cause damage to the amplifier or electrical system.

IMPORTANT!

 Disconnect the negative (-) battery cable before beginning  

installation. Verify the battery ground by checking that one wire is connected 
to the starter mounting bolt or engine block and another to the vehicle  
chassis using at least a #8 gauge wire. Also make sure the alternator  
connections are secure and free from corrosion, rust or dirt.

WARNING!

 The amplifier must not be enclosed or covered, as it may overheat.  

Do not cover with carpets or enclose it behind trim panels. Do not mount the  
amplifier in an inverted or upside down position. Select a mounting  
location where drilling of pilot holes will not damage any wires, control  
cables, fuel lines, fuel tanks, hydraulic lines or other vehicle systems or  
components.

Part Includes 

1 - SUB-8100 subwoofer
4 - Mounting Brackets
1 - Wire & Wire Harness
1 - Remote Bass Control
18 - Installation Hardware
Adhesive tape  
(for alternate installations where 
mounting brackets can’t be used)

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