The subwoofer and front speaker is not working . i tried to auto calibrate, reset to factory setting and checked the wires. nothing helped

It seems like you've tried various connections and settings to get your JBL135 subwoofer working with your Kenwood receiver, but you're still facing issues. Let's break down the situation and provide some recommendations:

1. Subwoofer Connection:
   • Using the LFE/Subwoofer Out: This is the preferred method for connecting a subwoofer. Ensure that the cable is firmly connected to both the subwoofer's LFE input and the receiver's Subwoofer Out port. Make sure you have enabled the subwoofer output in the receiver's settings menu.
2. Subwoofer Settings:
   • Gain: Adjust the gain knob on the subwoofer to achieve the desired bass level. Experiment with different settings to find the right balance.
   • Crossover: Set the crossover frequency on the subwoofer to blend with your tower speakers. Start with a conservative setting, such as 80Hz, and adjust as needed.
3. Receiver Settings:
   • Speaker Configuration: Set your tower speakers to "Small" in the receiver's settings menu to redirect bass frequencies to the subwoofer. This ensures that the tower speakers are not trying to reproduce deep bass.
   • Bass Management: Enable the appropriate bass management settings in the receiver's menu, which typically includes crossover frequency and speaker size adjustments.
4. Check Subwoofer Cable and Port:
   • Ensure that the subwoofer cable is in good condition and securely connected to both the subwoofer and receiver.
   • Try using a different cable or testing the subwoofer with another receiver if possible to rule out cable or port issues.
5. Factory Reset:
   • If you've exhausted all troubleshooting steps, you may consider performing a factory reset on your Kenwood receiver. This will reset all settings to their default values, potentially resolving any configuration issues.

If none of the above suggestions work, it's advisable to consult the user manual for your specific Kenwood receiver model or contact Kenwood customer support for further assistance. They can provide more detailed guidance based on your equipment and setup.

I had a similar problem where the subwoofer was working during calibration but not on TV viewing. Here is what I found:

• That some listening/surround modes did not support the subwoofer.
• Some receivers only support subwoofer with digital inputs.
• Might also want to double check the speaker config and make sure it's has the subwoofer enabled.
• I assume you're using the sub-pre-out to drive the powered subwoofer.
• Have your tried a CD or FM radio station to see if you're getting the sub output from these sources?

Try differnt speakers, if they do not produce sound, amp channels may be blown and then you need to take it to a shop.

The amp inside the sub has failed. Basically a sub is a mono power amp with a speaker. Though it seems to be getting power it could be that the main semiconductor that does all the work has gone open circuit. If it went short-circuit it would have killed the fuse and power.

HI,
first of all select ur sub woofers auto mute (auto power off ) switch to off position.
then connect the mic and calibrate ur system one more time. after calibration select it to on position. u will surely get it work. if need any further assistance feel free to contact through fixya.
ok

check to see if there is a fuse on the back of the speaker.

Try doing an auto-calibration through your amp to check that all the speakers are correctly connected, if they are then try play around with the EQ. otherwise, chances are it's a manufacturing fault

try to spray contact cleaner into the speaker port itself.. Powered off of course.. let it dry and try again.. this will clean any connectivity issues due to bad contacts.. as far as replacing jacks.. try the suspected "bad" speaker and wiring in another port.. if it works then the speaker and wiring is good and you have to check actual jack in which you were asking and back to auto amplifier circuit or transistors.

hi can you try this it might work, take off all the connections to your receiver and the reset your receiver to the original factory settings then turn it off and disconnect it from the socket. connect all the the speakers and turn on and start auto set up. hope it works