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Page 4 • JL Audio, Inc., 2016

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S T E P 6

From the backside of the rear panel, position 

the Bracket around the frame.  Slide a 3/8” 

Serrated Spring Lock Washer and a 3/8” Flat 

Washer over each of the 3/8 - 16 x 1” Serrated 

Flange Bolts, thread the assemblies through 

the holes in the Bracket and rear panel, 

into the threaded inserts on the back of the 

Stealthbox®, and fully tighten.

S T E P 5

Connect speaker cable to the barrier strip on 

the enclosure.  Put the Stealthbox® back into 

position.

S T E P 4

Remove the Stealthbox® once more, leaving 

the Wax Squares in place.  Using a 3/8” drill bit, 

drill a hole through the rear panel on each of 

the impressions.

Before drilling, always make sure that you 

are not going to be drilling into any gas 

lines, brake lines, tires, transmission lines, 

electrical wiring, exhaust systems or any 

other critical system.

S T E P 3

Temporarily place the Stealthbox® on the floor 

behind the driver’s seat to determine where 

the 3/8 - 16 x 1” Serrated Flange Bolts meet the 

rear panel.

Remove the Stealthbox®, and position the Wax 

Squares on the panel at the bolt locations.  Put 

the Stealthbox® back in position, pressing

firmly against the enclosure to leave bolt 

impressions on the Wax Squares.

S T E P 2

Thread the supplied 3/8 - 16 x 1” Serrated 

Flange Bolts into the two threaded inserts on 

the back of the Stealthbox®, and hand tighten.

S T E P 1

Attach Foam Strips from one of the

included sheets to the rear and bottom of the 

Stealthbox®, evenly spaced, as shown.

SB-KW-TRX4/10TW3  INSTR_SKU# 011451

S T E P 7

Route speaker cable as necessary.

Note:  For optimum performance, we

recommend applying Foam Strips from the 

remaining sheet (or sound damping

material) to surrounding plastic panels to 

reduce unwanted vibrations.

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