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I just received this kenwood 100 watt powered sub w/10'' sub from a friend... he says it just won't turn on, i checked the fuses and they seem ok to me just won't turn on like he said... can someone help here i'd hate to through away since really need one...
i do not have the proper tools to ensure your info works but i also think it's transformer. only tool i have is a soldering gun therefore, i solder out the transformer and took pics sent them off in an email to "chia ban" http://www.chiaban.com) the made it. waiting for response... thanks for your inputi do not have the proper tools to ensure your info works but i also think it's transformer. only tool i have is a soldering gun therefore, i solder out the transformer and took pics sent them off in an email to "chia ban" (http://www.chiaban.com) the made it. waiting for response...
thanks for your input
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Re: I just received this kenwood 100 watt powered sub...
Check the transformer has ac around 50 vac. then check the dc power supply at +_ 45 vdc if all that is ok,check the output ic has +- 45 vdc at 2 of the pins,if it does,the output ic is probably no good
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Link for the service manual: http://elektrotanya.com/pioneer_vsx-305_405.pdf/download.html On page 50 of the manual (36 of the pdf) it says for the "Sub woofer pre-out jack (Not available on the VSX-305 model) If you want to boost the low frequencies, connect to a subwoofer power amplifier" Your model will not drive a sub-woofer with out another amp. His sub may be a powered sub?
when i was running my sub off bridge mode this kept happening to me. I ended up just running two subs and for some reason the fuse stopped blowing. i think there is something wrong with these amps.
Have you checked to see if the sub amp is turning on. Check to make sure you have at least 12 volts on your power as well as your remote turn on (Blue/White on radio harness). If everything is hooked up correctly, it is possible that the preout is turned off. Some headunits have selectable preouts. If so you should be able to turn the sub on and off in the menu. Hope this helps VOTE
the problem sounds like your new sub is drawing to much power and your amp can not handle it. bridging the amp is a good way to get the full power out of your amp. But it isnt always suggested, my solution is to get a bigger amp. I install stereo systems for a living, and i tell my customers that it is smart to get an amp about 100 more watts then the rms rating of your subwoofer.
The Kenwood KAC-6202 2-channel is only rated for 60 watts RMS per channel into a 4 ohm load. That just isn't much power for a pair of 12" subs. Even the bridged output is only 200 watts into 4 ohms, still at the low end for a sub, much less to share between a pair of subs.
Assuming that your subs are 4 ohm, you could probably get more sound by driving just one of them on the bridged terminals. But to get the best power with what you have, connect one sub to each channel, set the filter switch to the far right (LPF), set the operation switch to stereo (both channels driven), set the filter frequency (Hz) to 100 or lower, and adjust the input sensitivity as far clockwise as possible without causing distortion.
But, to do the subs justice, you really need at least 300-400 watts to share between them.
You first need to determine what is causing the "no sound" problem. (1) Try the sub(s) on a different amp (a friends maybe, or a local audio shop) and make sure that it/they work properly. (2) Test the outputs from the receiver. (3) Try a different pair of RCA cables. (4) Check the speaker wiring. (5) Check your head unit settings. (6) Check the amp gain. Once you have isolated it, repair or replace the defective wiring or part.
Your KAC-5204 amp is only rated to put out 60 watts per channel and really cannot push very hard. If your subs are the KFC-W110S, they are 8ohm subs and you will get better power from the amp by using the bridged connections, positive (+) on the left channel and negative (-) on the right channel. Wire both positives and both negatives from both subs to the bridged connections and the output will be 150 watts into 4ohms. Giving each sub 75 watts should make them push a little harder.
You need:
1) 2 4-ohm subs
2) Appropriate enclosure
3) Amp wiring kit with RCA's
Connect each sub to a separate channel and set both mode switches to "MONO" (center position). In 2-channel mode, this amp is only rated at 80 Watts RMS, so you need relatively small and efficient subs. I'd say nothing bigger than 8" or perhaps 10". Rockford-Fosgate P1S48 (8") and R1S410 (10") will work OK with 50-150 watts RMS. Some others will also.
i do not have the proper tools to ensure your info works but i also think it's transformer. only tool i have is a soldering gun therefore, i solder out the transformer and took pics sent them off in an email to "chia ban" http://www.chiaban.com) the made it. waiting for response...
thanks for your input
Just for future references should anyone choose to visit this "chia ban" web page here's the correct url- www.chiaban.com.tw/emain.htm
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