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Subwoofer thumping when changing channels

When I use any of the digital audio inputs on my receiver it is causing a thumping noise from the sub woofer. Example 1: When the dish reciever is connected with the optical cable I'm getting the noise whenever I change channels. Example 2: When the DVD is connected with the coaxil cable the noise occurs whenever I start/stop/pause or select anything from the DVD menu. Example 3: The noise is also caused by changing the input selections on the reciever.

None of these problems occur when components are connected with regular audio cables.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 4234 Answers

SOURCE: Connecting Denon receiver to DVD player

Normally the optical inputs are disabled unless specifically turned on. I dono't know your specific model. I'll research the model and update this with more specifics.
Dan

Posted on Jun 17, 2008

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mlapres
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SOURCE: Audio cuts out on my reciever

Try selecting any option for decoding priority from "auto" to "pcm."

Posted on May 09, 2009

  • 11 Answers

SOURCE: Which optical inputs should I use for (1) audio output

Hi, the Optical and Coaxial inputs are assignable to whichever input you need them on. Plug the Optical cables from your DVD and HD cable box into any of the OPTICAL INPUTS (1 and 2 is fine, but write down your connections on paper)

You will then need to go into the setup of the AVR on the screen and assign the OPTICAL connections to the correct inputs (Probably TV/CAB and DVD.

Use the SYSTEM SETUP button on the factory remote, and you should see the on-screen menu appear on your TV. Go to INPUT ASSIGNMENT and choose the input for the DVD and assign OPTICAL 1 or 2...

Reply here if you need more help.

Posted on Jul 08, 2009

  • 163 Answers

SOURCE: Input signals Marantz SR4003

There are four digital connectors on the back of the unit: 2 optical and 2 coaxial. They are marked a s 1 2 3 4. 1 and 2 are optical, 3 and 4 - coaxial. Also you have front optical connector marked as F.
You can connect 5 digital sources to your receiver. For example, connect your DVD to input 2 (optical) by optical cable and connect your DSS to input 3 by coaxial cable. Assign DVD to digital 2 and DSS to digital 3 in input setup menu.

Posted on Aug 15, 2009

Rifaa
  • 99 Answers

SOURCE: Kenwood KRF 7775D not working with Digital Inputs

First of all my nick is Rifaa.
Secondly do you still have the amp

Posted on Sep 08, 2009

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1 Answer

Subwoofer channel no longer has output


Is your sub powered (amplifier built-in)? If so, connect your MP3 player directly to the sub input and see if you hear audio. If you do hear audio, check for cable problems from Panasonic to sub input. If the sub is unpowered then it's either the speaker wiring, an intermittent sub and/or your Panasonic at fault.

Mar 22, 2015 | Panasonic Sa-ht70 Home Theater Receiver 5...

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JBL PB12 will have loud thump or pop!


First try to find the source of your problem. The easiest way would be to try your sub with a different audio source to see if the problem still occurs but is sounds more like there's a problem with the receiver.

Oct 18, 2012 | JBL PB12 Subwoofer

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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

Would like to hook up two recievers to push all my speakers comfortably. I have a pioneer vsx d490 and a sherwood rd 6500. How wud i accomplish this?


I think you mean Pioneer VSX-D409.

Since the two receivers are similar and capable of driving everything else in the room, I guess you want to treat one receiver like a basic amp, like for a passive subwoofer, right?

However, still guessing your intent...

The VSX is a basic 5-channel amp (5 x 100w) but only has digital multichannel inputs. It has optical and coaxial digital inputs and an optical digital output.

The Sherwood has coaxial and optical digital inputs and no digital output, but it has analog inputs, so it would be easier to selectively use any or all of its amplifiers, which are about the same as the Pioneer's (gotta read the fine print - Sherwood uses a 6-ohm load instead of 8-ohm to get the numbers).

Choose the one you like to use for the control (master). Run its Sub Out to the other receiver's AUX input using an RCA splitter to feed both input channels. Attach the sub to one set of front speaker terminals. Configure theat receiver for NO SUB so it won't steal LFE from theis channel. Designate the FRONT speakers as Large.

Setup would be tricky because you have to choose a volume setting on the slave amp and stick with it. It might get changed after you set the levels and negate the setup efforts. OTOH, you would have the flexibility to change it independently if desired.

My $.02... If subwoofer power is all you need, why not just get a nice Carver 2-channel amp on eBay (2x100w would suffice), bridge it to 200 watts and blow the house up, figuratively? Then you could redeploy or sell the unused receiver.

Jan 18, 2010 | Sherwood RD-6500 Receiver

1 Answer

I am trying to hook up a powered sub woofer to a yamaha rx-v461 and i dont know what cables go where on the back of the sub there are two speaker ports and there are two plug ins but each speaker port has...


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.

Sep 28, 2009 | Yamaha RX-V461 AV 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

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.

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1 Answer

Sub thumps repeatedly


since it still thumps i suspect the speaker is ok, but i suspect you have an electronic problem in the amp. since it is a powered sup & has the ability to auto turn on it has electronic circuits inside, take it to a service center for an estimate

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Ive seen this problem in alot of audio setups in vehicles but most peeps dont know this is not a good thing and will cause damage to your woofers or amp. 99% of the time it turns out to be as you said that bad boy muting circuit. alot of these curcuits do use separate transitors or diodes as mute switches but most of them are directly from the Microproccessor. Only way to trouble shoot this is with a schematic and a good car stereo tech. Good luck

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