The speakers work fine apart from the sub component has lost all volume u can hear it very faintly if u turn the volume to full and the bass control to max. I've taken the sub apart to some extent and cannot see any wiring faults. Tried different aux in cables and different inputs ie ipod or computer but still no luck any help would be much appreciated.

Yeah, you likely blew the sub. Could be the amp in the sub or the speaker driver.

If the sound is also dead on that channel on a pair of headphones. Then you have probably lost the main power amp for that channel. To be certain. With you headphones on, slide or turn the balance control so you can only hear the faulty channel. With some music playing turn up the volume. If you can hear "faintly" music playing then the pre-amp is OK and the power amp has gone.
The power amp will be located on a heat sink. It will consist of 4 transistors (2 for each channel) or one big device (or two) (an IC). If it is transistors you only need to replace the two for the right channel.

did you blow a fuse, or did you blow out your speakers.

if your computer came with a motherboard disc the sound drivers could be on it
you might have to uninstall then restart your computer then reinstall both the sound drivers and the sound card make sure you have both of these devices backed up to a disc before uninstalling
a yellow? question mark means you need to install/update driver to do this
right click to install driver also
click start control panel administrive tools computer management device manager scroll to sound,video and game controllers you might see a yellow question mark? Right click to reinstall drivers
click start control panel sounds and audio,volume,advanced,speakers select appropriate speakers also audio you will find 3 drop down lists make sure you have the correct settings there
also
click start control panel sounds and audio devices you can adjust the volume there also select speaker volume you can change your settings there you can also tick in the box place icon in taskbar
if his does not fix the problem

have you tried this control panel sounds and audio,volume,advanced,speakers select the appropriate speakers from the drop down list or navigate to the device manager scroll to system devices + to expand,system speaker right click properties then select use this device (enable)

hope this helps

One or more of the wires may have a break. If you can get similar wires from an electronic shop, you should try that first. It's also possible that the internal electronics in the sub-woofer (the volume,bass,treble controls and the related electronics) developed a fault. In that case, only a service technician can repair it.

Hope that helps,
Regards,
Raspal

some important steps 1)check speakers & components connected correctly 2)check that MASTER VOLUME control is not set to VOL MIN 3)check muting 4)may be protective device may be activated to prevent short circuit

Hello,

The level control controls the input level coming from your head unit (receiver) to the amp.

Your Sony users manual is a little vague on how to best adjust the level and other controls.

Here is one method that some installers use and works well with most amps.

Most 10" subs sound best between about 80-100hz and below, so start out by setting the LPF at about 80hz. The HPF will not be used. Next turn the bass boost and gain all the way down. Turn on the radio and set all tone controls, bass, midrange, treble to flat, usually "0" on most head units. Turn the volume up to approximately 3/4 volume level or just until you begin to hear distortion. Now, back the volume down until the distortion is gone. Next turn up the gain control on the amp until you hear the subs start to distort then back the gain down until the distortion disappears. Next turn the bass boost up again until the subs begin to distort, then either back the bass boost down or back the gain down until the distortion is gone. You may need to play around with the bass boost and gain controls to get exactly the sound you prefer.

Hope this helps.

for 1 never turn the gain all the way up. it is not there to control volume it is there to match gain impedance between other amps and components. 2 i dont know what amp you have so i cant say much about that. 3 test the rca inputs by using a dif set and test the speaker wires as well

You need to take apart tthe sub woofer and check the connection to bass speaker for continuity. It sounds like an internal broken connection to speaker on sub woofer unit.

in the back of head unit u might have 2 pre outs try swicthing them if u dont then on the amp u should have nobs turn them all the way up