I've had this deck for about a year, everything has worked well. I have subs hooked up to the RCA sub output connectors to an amp and 2 10 inch subwoofers.
I removed my subs to put somthing in my car, put the subs back and now I hardly get anything out of the subs. I took the subs and amp into a shop and verified they are working perfectly. I even hooked my ipod up to the amp and it worked fine. The amp powers up and everything, and only a little bass comes out.
The shop said it is probably the deck that is the issue, has anyone ever had this issue? Everything works find except for that! It sux!
Thanks for any help!
I recently changed the head units in my pathfinder and the subs were working before. I have two Kicker 12'' CVR and a performance teknique 1200 watt 2 channel amp. I had a kenwood head unit but then purchased the Eclipse head unit. I switched RCA cables and my amp isnt blown because i checked with another amp. I can hear the subs when i switch the amp from LPF to HPF, but the subs wont play. there is a amp turn on wire and a amplifier ground wire,...i dont have them hooked anymore, but could that be why? and now i dont have them connected and its still the same results.
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117 Answers
Re:
First check that the subwoofer function on the actual head unit is turned up,second check that the gain on the amp is at bout half way then check that it is on a lp (low pass setting)
then check that the boost on the amp is turned up.
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For powered sub :If your receiver has a sub woofer output on female RCA plug, that is the way to go. If no output you will have to get a speaker line to line output converter to then connect to your subwoofer amp input.
Unpowered sub - just hook up across the speaker terminals for each channel making sure that you hook it up in phase.
The speaker level input option is designed for receivers that don't have digital output for the sub, used this way when you set to digital the speaker outputs only get the higher range outputs so won't reproduce much bass. To get the sub to work in digital mode you need to use the digital output (single RCA) from the amp to the sub
You can prove the sub pre-output works by running an RCA cable from it to the input of a tape deck, TV or any other device that accepts Line In and will either display it or play it. Test it on VERY LOW volume at the receiving device.
Does the sub work at all? How is it hooked up? The sub needs to be fed by an RCA cable from the Subwoofer Output jack for the receiver to control its output.
Your subwoofer probably has both high-power inputs and "normal"low inputs. The first are for receivers, which don't have link-level output for sub, so they are able to take already amplified signal as input. You need to use link-level input of your sub and connect it to subwoofer-output of your receiver. The output is marked as OUTPUT - Subwoofer and is black-color RCA plug (don't confuse with subwoofer INPUT under MULTI CH INPUT). Receiver has only mono output for subwoofer. If your sub has stereo input (white/red RCA plugs), connect just the left channel to the receiver, it will still work. Don't connect anything to the speaker output on the sub, you don't need that.
No. I would recomend running front and rear to the crossover. Use the sub out on the deck so you have total control of subwoofer output at your fingertips. Your deck should have at LEAST an 80hz crossover built in. Any further fine tuning can be done at the sub amp.
THIS UNIT HAS NO SUB WOOFER AMP IN IT. THE ONLY WAY TO OVER COME THIS IS TO HOOK THE LEFT AND RIGHT FRONT SPEAKERS STRAIGHT TO THE SUB WOOFER AND THEN GO FROM THE SUB WOOFER BACK TO THE INPUTS ON THE BACK OF THE UNIT FOR THE FRONT SPEAKERS. THE SUB WOOFER THIS WAY WILL EXTRACT THE BASS AND THE FRONT WILL RECEIVE THEIR PART. THIS SOUNDS CRAZY AS HELL I KNOW BUT THAT'S HOW I GOT MINE TO WORK. THE OUTPUT FOR THE SUBWOOFER IS USELESS AND PUT THERE FOR YOU TO HOOK UP AN AMP FOR A SUB WOOFER. EVERYTHING HAS SHORT COMINGS, AND THAT'S THE ONE FOR THE AX-720.
In general, there are two ways to hook up your sub-woofer. First using the high level outputs from your receiver ( speaker output from the front R & L speaker terminals ) run a set of wires from the outputs to the speaker inputs on the sub-woofer, you do this in concert with the speaker wires going to the front R & L speakers which you then attach to the R & L speaker outputs on the sub woofer amp. Note that the sub woofer doesn't power your front speakers, the connections from the sub amp are just a pass through connection where the signal needed by the sub is parasitically taken from the inputs. Second is via a low level output from your receiver / amp to the low level input on your sub amp. This is normally done via a RCA type of patch cable and connected to the sub woofer RCA jack on the rear of the source receiver or amp, Next run the patch cord to the sub amp an into the RCA jack input. IF you have a right and left input, use the Right input.
The first thing to try is disconnecting ONE of the two subs. See if you get more bass with a single sub than with both. If you do, re-connect the second subwoofer, but reverse the (+) and (-) wires.
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