Hey, I'm sure this issue has come up but i couldnt find it anywhere. I've had my speakers and sub for about a year and suddenly the sound from the two speakers have cut out completely. The sub is still working, but the two speakers are not. Any suggestions?
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you need to determine what impedance the amp is running at ,how many spekers ,most 2 channel amps will only run 2 4 ohm subs per channel and only 1 4 ohm speaker in bridge ,Basically if you have 2 4 ohm speakers bridged at the amp it will usually cut in and out .Some amps will not do this for a while and will work for a while at low impedance but once they get older and hot and cool off many times they will then only work for the intended ohm load ,Do you have 2 speakers ,if so make sure 1 is on left channel and 1 is on 2nd channel (should not cut off ) if it is a mono amp ,make sure you are only running 2 4 ohm subs and not dvc speakers (these will run 1 ohm and shut the amp down ) there are ways of wiring more speakers or dvc speakers ,I can explain but I need to know what product you have .
Have you tried changing the Auto Standby switch to ON?
You can prove if the sub amp will respond to a known good input by TURNING ITS VOLUME DOWN tp start and just feeding it ANY RCA output from the receiver while playing, say, FM (to keep it simple). That way you would known in which direction the problem actually lies (internal or external).
Mine did the same thing then I found the solution by accident. After reading a post about moving the sub to different positions and making sure connections were tight to the sub , I loosened the right speaker connection screws to the sub and noticed the humming stopped completely . I know it sounds crazy but it worked for me.
yes. A good idea. Kill power to the sub, then unplug and remove everything from the sub. go ahead and plug it in again and check for buzzzz.
That is test one. if you have buzz still, its the sub assembly. bad luck, but not impossible. If the buzz is gone its one of the signals to the sub. They can produce a buzzz without any signal coming from your stereo equipment. Replace the feed line, enjoy! BTW...Kef sure does sound clean. good choice.
1 cap, either .5, 1 or 1.5 farad will be fine. they make 5 10 and 20 farad that cost way more than u need to spend for 400 watts RMS. i like the rockford fosgates, you can get a low cost Tsunami, just make sure you follow the charging instructions.
To troubleshoot a speaker system where sound is not issuing from all speakers, please do the following:
Verify that all cables are plugged in correctly. Make sure the rear
and/or center/sub audio cable is plugged in to the correct port. On
most surround sound cards, the rear audio port is black, the front
audio port is green, and the center/sub audio port is orange. If you do
not have a surround sound card, make sure you obtain the proper adapter
(discussed in the next paragraph) or use surround sound emulation if
your speaker system offers it. If you are not sure if you have a
surround sound card, please check with the manufacturer of your sound
card for details.
Make sure your sound card supports the same amount of channels as
your speaker system contains. For 4.1 systems, it should have a front
and rear speaker jack on the card. For 5.1 systems, the card should
have a front, rear, and center/sub, output. The card should be properly
installed and configured. Please contact your sound card manufacturer
for details. If you do not have a surround sound capable sound card,
you can use the source selector switch or the M3D button on the controller unit (if available). You can also use an
adapter to split the signal for the front and rear speakers. This type
of adapter is a 3.5mm male to 2-3.5mm female jacks. You can purchase
this adapter at your local electronic store. Please refer to your
manual if you do not know if your speaker system can emulate surround
Try connecting the speakers to a portable sound device such as a
walkman or portable CD player. Plug the speakers into the headphone
jack, but make sure the volume is lowered so the speakers are not over
powered. You can do this for both the front, rear, center/sub speakers
to verify that they work. If the speaker system works on the walkman,
then you are experiencing a configuration issue with your sound card.
Please contact your sound card manufacturer.
Check the system Volume Control located in the System tray. Make
sure that the volumes are at a reasonable level and are not checked for
First of all you need to check if your amp can support this type of speaker setup? If you are simply going to wire 2 subs up to the amp (assuming a 2 channel amp) it's pretty simple. Just connect the + & - cables to one channel of the amp & the other ends of the cable to the sub, making sure that they are the correct polarity on both sides (ie speaker & on the amp). If on the other hand you want to 'daisy chain' the subs onto one channel of the amp (this effectively drops the load down to half that of the speakers (usually 2 Ohm)), then you do as the name suggests. Simple connect one speaker cable to the amps channel 1 + ve output to subs_1 +ve input. Then from sub_1 -ve connector to subs_2 +ve. This leaves you with only 1 more to connect sub_2 -ve back to amp channel 1 -ve.
NOTE: make sure that your amp can support this first! If it can't then it's will auto switch off in most cases but can also damage the amp if there is no fail safe circuit built in.