Question about Alpine CDE-7856 CD Player

1 Answer

No Subwoofer output

I've hooked up my subs and turned the sub channel "on" and set setting up to +15 (highest level it will go) and with radio jacked all the way up (35), it barely has any signal coming to the amp. Got any ideas? Any help would be appreciated.

Posted by on

  • Anonymous Aug 30, 2008

    i'm missing my sub channel

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 158 Answers

The connections to the amp seem to be all wrong .check the wiring again.Does your deck have a seperate sub woofer output ?If it does , just connect one sub, i repeat, just one sub,and see the output.
OR
check the GAIN control on the amp.it should be 2/3rds of the max volume of the cd player.check it is not zero!
AND
Set the amp to the L.P.F. position.
bye .happy listening.

Posted on May 26, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How to hook up the subwoffer


There are several methods, depending on the the types of 1)inputs on the subwoofer and 2) outputs on the amplifier (aka receiver). You can only use the type that is on BOTH.

Most sub woofers have "line level" inputs (they are the RCA phono style jacks or other style jack) that are marked "In" or "Input" and may have speaker level input & output terminal that accept speaker wires.

Amplifiers or "amp" all have speaker level outputs and many also have jacks that are labeled "Subwoofer" or "LFE" (low frequency effects) Output. If both your sub and amp have the "line level" jacks, then all you need to do is get a cable that is long enough to connect the two together, and then enable the low frequencies to be sent to the sub instead of the normal speakers in the receiver's set up menu. Done!

If you have only a speaker level connections common to both the sub and amp, you'll most likely need to disconnect the Main front L and R speakers from the amp and connect to the sub's Speaker Output terminals - and connect a couple of new speaker cables between the sub's Speaker Input terminals and the amp's Main front L and R terminals.

If you don't understand completely, provide the make and model of the amp and the sub, and I'll be able to clear up anything that isn't clear.

25517777-ejolmyc2yfkogaqnuhzuddw3-1-0.jpeg

Mar 05, 2015 | Audio Players & Recorders

5 Answers

Broken connector in subwoofer connection on receiver


The only thing you do is to open your receivers,then locate the output connector if you see the female RCA jack ,then push it out the broken piece ,that's it

Jul 27, 2008 | Audio Players & Recorders

1 Answer

Conncet a sony sub to a denon reciver


Depending on the model, there are two ways to connect a subwoofer to an amplifier, receiver or processor. The best way is to connect the subwoofer to the SUB OUT or LFE output of a receiver, but some subwoofers can be connected to the speaker level outputs of the receiver or amplifier.


1. How to Connect a Subwoofer to the Subwoofer Output


The preferred method of connecting a subwoofer is through the LFE or Subwoofer output (SUB OUT) of a receiver. Almost all home theater receivers (or processors) and some stereo receivers have a subwoofer output. The LFE (Low Frequency Effects) is a special output for subwoofers and is often labeled 'SUBWOOFER' not LFE. 5.1 channel programs on DVD discs have a dedicated .1 channel output with bass-only content that is best reproduced by a subwoofer. Connect the output of the LFE or Subwoofer jack to the Line In jacks of the subwoofer using a single RCA cable (the two jacks on the left in the photo). A 'Y-Cable' may be necessary to connect the LFE output to both the left and right channels of the subwoofer.

2. How to Connect a Subwoofer to Speaker Level Outputs
Some receivers and amplifiers do not have an LFE or Subwoofer output. In this case you can use the speaker outputs of the receiver to connect the subwoofer. Using speaker wire, connect the left and right channel speaker outputs of the receiver to the left and right channel speaker level inputs on the subwoofer (the speaker inputs on the right side of the photo). Using speaker wire, connect the left and right channel speaker outputs on the back of the subwoofer to the left and right channel front speakers.

Hope it helped..

Apr 20, 2011 | Denon Audio Players & Recorders

1 Answer

I have a Kenwood kdc-mp342u car cd player installed in my truck. I have subs hooked up to it and everything was working fine until i had to reset my radio and when i reset it the "sub Level...


Subwoofer output: Hold the (AM-) button down for at least two seconds. You can do this function when "SWPRE" in is set to . The SWPRE (Switching Preout) Switches the preout between rear output ("R") and subwoofer output ("SW").

Nov 10, 2010 | Kenwood KDC-MP342U Car CD Player

1 Answer

SUBWOOFER VOLUME PROBLEM


Make sure you have the sub connected to the proper output on the receiver and no connections are damaged.
Then check the gain/level control for the sub. on the receiver...turn it up if it's down.
Make sure that in speaker setup, that you have the selection for a sub turned on.

Jun 14, 2009 | Onkyo TX-SR304 Receiver

2 Answers

Which jacks to wire the subwoofer to?


Your receiver should have an RCA connector on the back panel that will be marked "sub woofer" or "LFE out". That connects to your sub woofer with a standard RCA type cable. Also, some powered subs have left and right speaker level inputs and outputs in which you would indeed run the sub woofer through the speaker outputs. The down side of that type of connection is that the line level converter inside the sub woofer will take a slight amount of your receiver's output power, although that is rarely detectable. Also, if you have a Dolby Digital receiver, using this connection method will take away systems ability to accurately control the low frequency effects of a soundtrack.

Good Luck,
BB

May 16, 2009 | Kenwood Audio Players & Recorders

1 Answer

Sony XM-1652Z


What head unit do you have?
Is there a dedicated subwoofer output?
If not, have you switched the rear output to sub output?
Is the amplifier set to LPF (low pass filter), and the gain turned up?
Many things can be wrong, but the fact that there is anything coming out of the subs is a good thing.
Start at the beginning - Head unit, then check amplifier gain/crossover setting.
If you are using a hi level adapter on factory radio, is the Bass on the radio up? is the output gain on the convertor up?

Jan 13, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

2 Answers

Connect powered subwoofer


  • If your receiver has a dedicated subwoofer line level output, we recommend connecting your subwoofer to this jack. Most receivers will have just one (mono) subwoofer output, while quite a few subs require two inputs. You can use an RCA "Y" adapter cord , which is a cable with one female RCA jack at one end, and two male RCA plugs at the other. Some receivers require menu settings (such as "sub-on" or "front speakers-small") that must be made before the sub output will be active.

  • Nov 22, 2008 | Audio Players & Recorders

    1 Answer

    Subwoofer to receiver hookup


    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.

    john

    Aug 18, 2008 | Audio Players & Recorders

    2 Answers

    Very low ouput from subwoofer preout


    The problem was that some subwoofers (inluding my velodyne model) cannot process the LFE signals through the line level inputs on its amps, so the other way to run your subwoofer is to run the front left and right speaker outputs from your receiver to the speaker-level inputs on your sub, and then plug your front and left speakers into the soeaker level outputs on the sub. you have to set the onkyo receiver to "Subwoofer: No". that way the LFE signals are sent through the front speaker channels and you will get the same BASS output as if using the line-level input. O So yes it does require a bit more speaker cable, but it works fine now.

    Mar 18, 2008 | Onkyo TX-SR304 Receiver

    Not finding what you are looking for?
    Alpine CDE-7856 CD Player Logo

    Related Topics:

    177 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Alpine Car Audio & Video Experts

    xxxxxx xxx

    Level 3 Expert

    4807 Answers

    Tygh Duval
    Tygh Duval

    Level 2 Expert

    290 Answers

    Jaime Hernandez

    Level 3 Expert

    2296 Answers

    Are you an Alpine Car Audio and Video Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides

    Loading...