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Speaker troubleshooting guide

If you have a problem with your speaker, please consult this troubleshooting section for possible solutions. If,
after consulting this section, the problem remains unresolved, please contact your dealer for more 
information and/or help.

This troubleshooting section contains information on how to solve the most common speaker problems, but it
does not and cannot cover every eventuality. It is possible that you won't find your problem, cause and 
solution in this section due to differences between products.

Problem

Possible cause

Solution

No sound via one of the inputs

Cable not connected properly

Make sure that the cable is 
properly connected to both the 
speaker and the amplifier. 

Defective cable 

Try using another cable to 
determine whether the cable is the
problem. 

No sound

Volume control is not turned up

Turn up the volume control on the 
signal source and/or amplifier to a 
sufficient level.

Red Clip Limiter LED lights up 
often or continually

Volume is too high

Lower the volume of the input 
signal or the amplifier. Overloading
the subwoofer can cause 
permanent damage.

Distorted, clipping, crackling sound Source device is transferring a 

distorted signal

Check if any of the connected 
source devices is transferring a 
distorted signal and turn down the 
volume on the device if necessary.

Volume control is too loud

Turn the volume down

The tone controls for treble and/or 
bass are too high or too low.

Turn the tone control back to 12 
o'clock and listen to see clipping is
still audible. 

Woofer or tweeter is defective

If a speaker is exposed to a loud, 
distorted, or clipped signal for a 
longer period of time, this can 
cause permanent damage to its 
internal components. If you 
suspect that the woofer or tweeter 
is damaged, contact your local 
dealer for assistance.

Subwoofer sound fades or is very 
prominent in certain places

Incorrect positioning/acoustics

Try repositioning the subwoofer or 
using the phase button to see if 
that resolves the problem. If the 
problem is caused by the 
acoustics of the room or 
frequencies interfering with one 
another, these solutions should 
help. 

The information in this user manual is subject to change at any time without notice.

Version: 
1.0

Date of creation and author's initials:23-09-2017 RV

Revision date and author's initials: -

Summary of Contents for 9000-0044-0897

Page 1: ...18S Passive subwoofer User manual The information in this user manual is subject to change at any time without notice Version 1 0 Date of creation and author s initials 23 09 2017 RV Revision date an...

Page 2: ...hes Please inspect the device and the included accessories Should you discover that either the device or one or more of the included parts have been damaged or rendered defective while in transit plea...

Page 3: ...essary or if the device needs to be cleaned Do not pull on the cable to remove a connector as this could cause damage Do not use any cables other than the ones described in this manual Do not use defe...

Page 4: ...on the screws Every power and signal connector should be securely mounted Do not use the device if the connectors are not secure Avoid dust and dirt build up Clean the device once a month by disconnec...

Page 5: ...via 4 pin lockable speaker connector 3 handle varies per model 4 M20 screw thread flange for speaker pole 5 bass reflex ports 66 low tone speaker The information in this user manual is subject to chan...

Page 6: ...nother one for a maximum stack of 3 It s possible to use harnesses or tension straps when moving the subwoofer but please be aware that this may damage the finish on the handles Wheels The 15 inch and...

Page 7: ...ems Bear in mind that using external equipment may change the character of the speaker s sound Using together with a speaker The Onyx subwoofers are ideal for use with Onyx speakers For optimal result...

Page 8: ...ier Overloading the subwoofer can cause permanent damage Distorted clipping crackling sound Source device is transferring a distorted signal Check if any of the connected source devices is transferrin...

Page 9: ...er model Model Onyx 12S Onyx 15S Onyx 18S Frequency range 40 Hz 150 Hz 35 Hz 150 Hz 30 Hz 150 Hz Power capacity RMS Peak 450 W 1800 W 600 W 2400 W 600 W 2400 W Impedance 8 ohms maximum SPL 120 dB 126...

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