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Use the supplied Audio Cable to connect to mp3 players, 
smartphones, notebooks and tablets. (refer to the 

Setup

 

section)

Use Stereo RCA Cables (not included) to connect to TV or 
game console sets. (refer to the 

Setup

 section)

•  Turn on the speaker system.
•  Set the Main volume to the nine o’clock position to start. 
•  Set the Bass volume to the nine o’clock position to start.
•  Turn on audio source and launch media.
•  Adjust volume settings as needed.

2.1 Speaker System

Quick Installation 

Guide

VMCS21

VM Audio Tech Support

US / Canada
phone: (855) audio-99 / (855) 283-4699
email: [email protected]

© VM Audio All rights reserved. All trade names are registered trademarks of 
respective manufacturers listed.

System is not powering on? 
•  Switch power button on and verify if the LED indicator is 

illuminated. 

•  Confirm that the AC plug is plugged in and that there is power 

to that outlet. 

Speaker(s) does not produce sound? 
•  Verify the system is getting power and check above steps. 
•  Make sure the volume is turned up to an audible listening level 

and/or your PC is not in a mute status. 

•  Verify that all cables are plugged into the correct jacks. 
•  Try connecting your system to another audio source or device. 

If the system works correctly with the other device, then your 
first device is most likely the cause of the problem. 

Sound is distorted or is not clear? 
•  Low quality compressed music files will increase the distortion 

and noise that are easily noticed with amplified speakers. 
Recheck sound quality with a non-compressed music file. 

•  Check the audio source level and decrease if necessary. You 

should never have your source volume above 90% volume level 
to minimize distortion.

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Rev. 1

2.1 Speaker System

VMCS21

L

L

R

R

AUDIO OUTPUT

AUDIO INPUT

ON

OFF

AC IN

˜

POWER SWITCH

1.  Use a Stereo RCA Cable (not included) to plug into 
the audio output of a TV or game console.

2.  Plug the other end of the cable into the Input Section 
of the Subwoofer.

Setup 

(option 3)

5. Operation

6. Troubleshooting

Caution & Warning

CAUTION

RISK OF ELECTIC SHOCK

DO NOT OPEN

CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE 
COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. 
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

•  Avoid high temperatures. Allow for sufficient heat dispersion 

when installed in a rack.

•  Keep the bass module free from moisture, water, and dust.
•  Do not let foreign objects into the port opening of the subwoofer.
•  Handle the power cord carefully. Hold the plug when unplugging 

the cord.

•  Unplug the power cord when not using the unit for long period 

of  time.

•  Do not let flammable sprays come in contact with the unit.
•  Never disassemble or modify the unit in any way.

WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT 
EXPOSE THIS UNIT TO RAIN OR MOISTURE

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