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Putting in a new subwoofer problems

post #1 of 10
Thread Starter 


Ok, so my sub looks somewhat like this. On the white and red composite low level input i can't get it to make any sound. It seems like my reciever just isn't sending out a signal through its coax sub output. The sub that came with the set and the reciever only have one set of speaker wires to the sub. Currently I got it to make sound with the sub wires plugged into just the R+ and R- inputs, but will that make it sounds weird? Thanks for any help.

EDIT: this is adding a new sub to a Home theater in a box system.
Edited by kingsnake2 - 5/22/08 at 7:49pm
    
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post #2 of 10
have you tryed setting it up as it should be then re-installing your sound drivers or even a restart. i know if i unplug any of my speaker wires i have to restart to get it to work again and have had to reintall the drivers once or twice due to it seeing a hardware change
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post #3 of 10
It seems the sub is designed to be a receiver in itself. maybe you should try connecting your left and right audio cables direct to ur sub just to make sure its working properly.
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post #4 of 10
Are you able to connect it exactly as the old sub was connected? If you can, try that. It would help to know the model of the receiver and subwoofer.
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post #5 of 10
what reciever are you hooking it to? can i please see a picture of the hookups on the back of it? also you are supposed to run your other speakers from the built in amp on the back of the sub. also try to turn the crossover to at least 80hz. and the gain up at least a 1/4.
    
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post #6 of 10
Thread Starter 
I dont have time to test anything right now but this is the back of my reciever:
    
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post #7 of 10
i have that same reciever it dosent look like it has the correct type of outputs to run that sub. but just for kicks try running the sub out(purple) to one of the high inputs then do what i said with the knobs. otherwise get a rca splitter to go from the sub out rca to both channels on the rca in on the sub. this reciever wasnt made by the looks of it to use with the sub you bought
    
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post #8 of 10
Both the amplifier and the subwoofer have the ability to use a passive sub. Try connecting the subwoofer amp output (the blue-looking +/- terminals to the right of "front speakers B") to one channel of the "Hi-level in" on the sub. Set the crossover frequency on the sub higher than the one on the amp. Set power on the sub to "off" and keep it in-phase.
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post #9 of 10
Thread Starter 
Rep to all of ya, thx. What I did is connected the sub with the high def in and then used the output right below that to go to my passive sub. One is down firing and makes the floor shake and the other feels like a punch to the stomach lol. Used your settings to make it sound right and now they sound like one nice sub.
    
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post #10 of 10
To use that sub with that receiver you would have to connect the front right/left output on the receiver to the hi lvl inputs on the sub. Then connect the front r/l speakers to the high lvl out on the sub.

You would have to set the receiver to no sub and run the front speakers as large or full range. Using the subs cross over, you would probably set it at or around 80hz.

This would result in the sub playing everything below 80hz and the r/l speakers playing everything above 80hz.
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