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ST-

4

00 REV A 1/4/17

ST

4

00 

CRUISER

 

EDITION WITH 

BLUETOOTH®

USB, 

AUX-IN | 

CHROME

ST

4

00

STEELHORSEAUDIO.COM

8

00

-

823

-

5310

  |  INFO@

STEELHORSEAUDIO

.COM

Steel Horse Audio #237 | 1540 Main St, Bldg 218 | Windsor, CO 80550

INSTALLATION INSTRUCTIONS

-CONTINUED-

THESE INSTALLATION INSTRUCTIONS CONTAIN IMPORTANT INFORMATION. ENSURE THE END USER RECEIVES THIS COPY AND IS AWARE 
OF ITS IMPORTANCE FOR FUTURE USE.

WHEN CONNECTING POWER AND GROUND WIRES ENSURE THAT THE RED POWER WIRE IS FUSED AT THE POINT WHERE IT IS 
CONNECTED TO THE VEHICLE’S BATTERY. FAILURE TO DO SO CAN RESULT IN DAMAGE TO THE VEHICLE IF A SHORT CIRCUIT DEVELOPS 
BETWEEN THE VEHICLE CONNECTION POINT AND THE PRODUCT.

THE END USER’S SAFETY DEPENDS UPON PROPER INSTALLATION OF THIS PRODUCT. IF A STEP IN THESE INSTRUCTIONS IS NOT 
WITHIN YOUR CAPABILITIES OR YOU DO NOT HAVE THE CORRECT TOOLS, HAVE YOUR DEALER PERFORM THE PROCEDURE. IMPROPER 
INSTALLATION OF THIS PRODUCT COULD RESULT IN DEATH OR SERIOUS INJURY.

ACCIDENTAL VEHICLE START-UP COULD CAUSE DEATH OR SERIOUS INJURY, REMOVE THE MAIN FUSE BEFORE PROCEEDING.

INTRODUCTION

Thank you for purchasing this Steel Horse Audio ST400 Motorcycle Speaker System with built in Bluetooth and USB MP3 playback, plus use any 

audio device with a headphone jack including iPhone® and Android® smartphones. This easy to install and use, all in one unit is capable of 

transforming any  music into an all in one motorcycle audio experience. Designed to mount on any motorcycle handle bars with a 1" or 1-1/4” 

diameter (other sizes available upon request for 7/8", 1-1/8" and 1-1/2"). Congratulations and enjoy the ultimate audio experience!

FEATURES

AMPLIFIER SPECS:

Bluetooth

®

, USB thumbdrive input and a 3.5mm AUX-IN connection

Easy to install with simple wiring to speakers and power

Waterproof h

andlebar mount controller

 with Bluetooth

®

 control

Universal strap mount for handlebar mounting of controller

Includes 

all wiring and installation accessories

4" 

KICKER 

SPEAKER SPECS:

Steel housings with triple plate chrome or satin black finish

Measures 4.75" Diameter by 3" depth mounting size for easy mounting, even behind a windshield

Includes two pair of bar mount brackets: 1” and 1-1/4” (1-1/2" available upon request)

4

00 Watts Peak RMS Power

 | ~10 amp power draw

INSTALLATION

STEP 1

The Steel Horse Audio ST

4

0

Cruiser 

Edition Motorcycle Speaker System can be used with any 

12-volt battery and can be mounted to a variety of bars using the included hardware. Mount the

speakers where they have sufficient clearance, position the speakers so the speakers are

directly 

pointed 

at the rider.

MOUNT BRACKETS TO HANDLEBAR FIRST, THEN INSTALL SPEAKERS

Determine the diameter of the handlebar and use either the 

1”

 Bracket or the 

1-1/4

” Bracket

Note: If you have a different diameter handlebar 

(

7/8", 1-1/8" or 1-1/2") you can request that 

bracket 

to be shipped 

separately.

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