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M T X . C O M

5

Step 7 - Open hood.

Step 8 - 

Drill a hole through the fire wall. Locate a spot low on the fire wall on 

the passenger side. You 

should always look to find a clear path. Drill a hole from inside of the vehicle into engine compartment 

and insert grommet. You may also find a pre-existing, unused rubber grommet in this location that you 

can pass the wire through. 

Note:

 To avoid any damage to parts inside engine compartment, drill from 

inside of vehicle using a short bit. 

Step 9 - Route 10ga red power wire through grommet into the engine compartment.

Step 10 - Route 10ga red power wire through engine compartment safely away from any moving or 
hot parts that could damage the wire.

Step 11 - Cut 10ga red power wire to length, connect the supplied fuse holder from the wire kit to the 
end of the wire.

Step 12 - Remove 20 amp fuse from MTX fuse holder. Connect furnished ring terminal to positive side 
of battery. Remove 

5

16

" bolt from factory battery terminal. Place ring terminal on battery post and 

retighten nut. 

Note:

 Always turn the ignition OFF when connecting or disconnecting battery cables. 

Failing to do so may damage electronic components.

Step 13 - 

Ground amplifier to chassis of vehicle; connect the terminal provided to the 10ga black wire 

from furnished wiring harness. A good ground is as important as the power connection. The ground 
should be as short as possible and the contact point should be free of paint and debris. 

Firewall

Drill Hole for 

Grommet

Battery

Summary of Contents for THUNDER FORM F250X00BK20A-TN

Page 1: ...M T X C O M F250X00BK20A TN F250X00C20A TN FORD F 250 F 350 SUPER CAB VEHICLE SPECIFIC SUBWOOFER ENCLOSURE OWNER S MANUAL ...

Page 2: ... installation or technical support Visit mtx com to chat call 1 800 225 5689 to speak with an MTX Technical Support representative or visit youtube com user MTXAudioUSA to view product videos DON T FORGET TO REGISTER YOUR PRODUCT Don t forget to register your new MTX Audio product Visit mtx com productregistration or scan the QR code to the right Model Serial Dealer s Name Date of Purchase IMPORTA...

Page 3: ... Included SPECIFICATIONS Dual 10 Amplified Subwoofer Enclosure RMS Power Handling 200 Watts Peak Power Handling 400 Watts Signal to Noise Ratio 1 Watt 75dB Frequency Response 10Hz 78Hz Impedance 4Ω FIT GUIDE F 250 Super Cab 2000 2014 F 350 Super Cab 2000 2014 REQUIRED TOOLS Powered Screwdriver 2 Phillips Head Bit Wire Cutters 5 16 Wrench 6 Bit Holder Extension IN THE BOX F250X00BK20A TN or F250X00...

Page 4: ...nd the front seats with the woofers facing up Step 4 If externally amplified make speaker connections to the enclosure from the amplifier Connect speaker wires from amplifier to enclosure positive to red terminal and negative to black terminal Amplified ThunderForm Note When routing power wire we recommend a connection directly to the battery Step 5 Remove driver side and passenger side threshold ...

Page 5: ...ny moving or hot parts that could damage the wire Step 11 Cut 10ga red power wire to length connect the supplied fuse holder from the wire kit to the end of the wire Step 12 Remove 20 amp fuse from MTX fuse holder Connect furnished ring terminal to positive side of battery Remove 5 16 bolt from factory battery terminal Place ring terminal on battery post and retighten nut Note Always turn the igni...

Page 6: ...re Connect to the supplied High Level input harness wires and plug into the matching port on the pre amp Although MTX has made every effort to assure proper wiring colors MTX is not responsible for any changes made by the vehicle manufacturer which sometime occur If wiring colors do not match then physical verification is required Connection to Enclosure Conventional Wiring of Factory Radio Conven...

Page 7: ...rce unit to maximum listening level You should know that some source units will produce distortion or clip before the unit reaches maximum volume Reduce volume to the loudest listening level before distortion Turn the gain knob on the ThunderForm pre amp clockwise until the speaker starts to distort and reduce gain to loudest listening level before distortion Optional The EBC or Electronic Bass Co...

Page 8: ...e Step 21 Place the driver side of enclosure in first so it fits into the seat bracket Then slide the passenger side so the enclosure is tight against the seat bottom Step 22 Using the supplied hardware secure the enclosure to floor of vehicle as shown below Step 23 Slide jack tools into center compartment under enclosure ...

Page 9: ... to make sure you will not damage any wires or hoses or cause damage to the vehicle Warning Batteries normally produce explosive gases which can cause personal injury Therefore do not allow flames sparks or lighted substances to come near the battery When charging or working near a battery always shield your face and protect your eyes Always provide ventilation ...

Page 10: ...M T X C O M 10 NOTES ...

Page 11: ...of MITEK WARRANTY MiTek Mobile products including but not limited to MTX Coustic Streetwires Xtant BassSlammer and Thunder Marine purchased in the USA from an AUTHORIZED MITEK DEALER are guaranteed against defects in material and workmanship for the period of time specified The warranty period begins the day the product is purchased by the end user and this warranty is limited to the original reta...

Page 12: ...rks are property of their respective owners Designed and Engineered in the U S A Due to continual product development all specifications are subject to change without notice MTX Audio 4545 East Baseline Rd Phoenix AZ 85042 U S A 1 800 225 5689 MTX006400 RevA 2 21 1 10531 Let sGet Social mtx com Like Follow Subscribe ...

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