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Assuming the radio has an output for rear speakers and it is connected to them and you have selected the front/rear fader and attempted to adjust it to the rear, you can't do much more without removing the radio and checking the connections and the wiring to the rear speakers.
When I am faced with this problem I disconnect the speaker wiring from the radio and using a 9 volt battery and two lengths of wire I test the speakers and the wiring by connecting to each speaker in turn. A good speaker with good wiring will produce noise when the 9 volt battery is touched to the terminals. If there is no noise the speaker or the wiring is defective.
If all tests ok then the radio is probably faulty. This can further be tested by connecting temporarily to alternative speakers.
What you're looking for is called a "crossover". A crossover is an electronic filter for an audio or speaker circuit. In an audio circuit, a crossover is used to prevent or pass certain frequencies or a range of frequencies from passing through it. Since your sub will reproduce the bass or low frequencies, you don't want other speakers to reproduce them. A band pass filter on your door speakers will do this for you. A band pass filter passes only a range or "band" of frequencies and blocks those that are above and below the range or band of frequencies selected. Installing a band pass filter will prevent the very high & very low frequencies from getting to the door /dash speakers. Likewise, you should consider connecting a low pass filter to your subs, too. The low pass filters work a little differently from of the way band pass filters work - they only allow low frequencies to get to the sub - blocking all the other higher frequencies (your other speakers are better suited to reproduce those). Lastly, you would install a high pass filters on tweeters. Tweeters are designed to reproduce only the high frequencies - sending mid and low frequencies to them is wasting power and can cause damage to them.
You purchase the filters for specific crossover points (the block / unblocked point) as determined by the individual speakers. If a sub has a frequency response of 20Hz - 100Hz, a low pass filter of 100Hz would be ideal. Remaining filters would need to begin at 100Hz - assuming the mid-range speakers have a frequency response beginning at 100Hz. A band pass filter of 100Hz - 3KHz would fit the bill nicely if the mid-range speakers go up to 3Khz Match the high end of the band pass to the high end of the frequency response of the mid-range speakers. Next, a high pass filter at 3KHz would allow only the high frequencies to your tweeters. Basically, you want to have the entire audible range 20Hz - 20KHz covered by the speakers and have the crossover points that match the frequency response ranges of the speakers.
The speaker wire is supposed to be connected to a mono right angle 1/8" male plug. It resembles the same plugs at the end of headphones used for all sorts of walkmans, cd players, mp3 players... But the plug on your speakers is mono so instead of there being two bands on the plug for stereo, you need the mono variety, the one with one band. They plug into two small female holes located on the bottom rear of the boombox. You might see some small black plastic clips along the bottom of the boombox held in place by one screw. These things are meant to keep the speaker wire from hanging out from the bottom of the boombox.
double check you didnt cross the connections behind radio the yellow is for video output so mabye u got one of the colors wrong if that fails check that adapter plug (the headphone jack thingy) is it seated properly? remove it and seat it again and check how many bands the silver piece has if its only 1 u gonna get sound from only 2 speakers if u got 2 bands u get surround and 3 bands u get video also
All four of the small speakers are identical, the original speaker wires are color coded. the very ends are all black and red, corresponding to the black and red connections on the back of the receiver and on the speaker, and there is another color band lower on the wire, which corresponds to the color on the receiver speaker connectors that details front right, front left, rear right, rear left, center, subwoofer.
If you are using standard speaker wire, it has two colors. Pick one for the red, and one for the black.
Just be consistent and connect all speakers the same at both ends (Copper color to plus-red / silver color to minus-black)
ok single band is mono... double band is stereo... if you have headphones that are mono try them on the pc... then stereo are next. let me know which one works
red - power Black - Ground Blue/Black - rear Left Speaker Positive Blue - Rear Left Speaker Neg White/ Black - Front Left Speaker Positive White - Front Left Speaker Neg Brown/Black - Rear Right Speaker Positive Brown - Rear Right Speaker Neg Yellow/Black - Front Right Speaker Positive Yellow - Front Right Speaker neg Green - Left Input Positive Green/White Left input Neg Gray Right Input Positive Gray/White - Right input Neg
so what you want to do is have both the parts play on both the speakers on the same time, am i correct?? was there a utility or program that came with your speakers that may have proporties to change this setting??
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