Question about Onkyo TX-SR502 Receiver

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Connecting a passive subwoofer!

I have a passive panasonic subwoofer that only has a + - connection like a normal speaker. my receiver has only  pre-sub output (RCA) . my question is: is it possible to have an RCA Y splitter going out from my audio receiver to the panasonic dvd player's AUX L/R RCA input that is powering up my passive subwoofer?

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  • Onkyo Master
  • 2,402 Answers

I believe the sub output that uses a RCA plug is not amplified and wouldn't work in your case.

Posted on Nov 15, 2017


6 Suggested Answers

  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Subwoofer Connection: Speaker wire to Mono RCA

The easiest solution to use your subwoofer is to buy an amp for it. Any old stereo receiver from a garage sale will probably do just fine.

  1. Connect the mono RCA subwoofer output from your Sony with a 1xRCA-to-2xRCA splitter to both the left and right input of the cheap reciever's tape or aux input
  2. connect both speaker outputs of the cheap reciever to the speaker input on your subwoofer. make sure both black (-) outputs on the reciever connect to the black input on the sub, and the red outputs (+) on the reciever are both connected to the red input on the subwoofer.
  3. make sure the cheap receiver's volume is all the way down. turn your Sony up to about the loudest you'll listen to it. turn up the subwoofer amp until it's loud enough to sound good.
  4. leave the subwoofer amp alone, the Sony volume will all you ever need to touch from now on.

You can even now turn off your subwoofer / adjust the volume easily now!

Posted on Nov 11, 2007

  • 14 Answers

SOURCE: Onkyo Subwoofer Pre Out Problem

May not necessarily be the out put, discontect the sub from the receiver and see if it still makes a hum, Making sure that you turn auto on, off on the sub woffer.
If it still makes a hum, then you have a earthing problem, you can get a earth filter put on your internal wiring in your home, or you can remove the earth pin on your sub woffer

Posted on Dec 13, 2007

  • 14 Answers

SOURCE: Can't connect subwoofer to onkyo av receiver

you would need a y jack to connect those to the receiver

Posted on Mar 05, 2009

  • 1 Answer

SOURCE: Onkyo TX-SR606 getting no sound from HDMI sources

Not sure if this is your fix, but I had what I thought was the same problem. I played with my Onkyo quite a bit ensuring the correct assignments for HDMI, audio and all that stuff. Turns out I neglected to make sure the output devices were properly assigned. Many devices aren't default to output sound over HDMI. I changed the audio out settings on the cable box to HDMI and suddenly the Onkyo worked great. I know, I'm an idiot for not checking that in the first place, but maybe someone out there is having the same trouble as well.

Posted on Apr 05, 2009

  • 1 Answer

SOURCE: No Soound on Subwoofer from Yamaha RX-V363

I have the same setup. Are you going out of the subwoofer output of the reciever? (it's purple.) then into the LFE jack of the subwoofer (also purple.) That's the only connection you need besides power. If you have those right, try using your cable for something else to make sure the cable is good. Is the indicator of the subwoofer green? Mine comes on with the reciever. Good luck!

Posted on Apr 14, 2009

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How to connect panasonic sb-dk-10 subwoofer speakers to another reciever

Yes... and no...sort of. The blue/gray wires can connect to a normal front channel (or rear) just like any other speaker would. However, the red/black (low frequency) need to connect to a dedicated LF connection. Most receivers don't have this output. What you could do is order a Low Pass filter and install it in line with any channel of the receiver you're not using. If the receiver has A/B speakers selectable then you should use the B output to this channel using the low pass filter (I'd order a 200Hz low pass filter .. PartsExpress has many lowpass filter options plus you can call them.

Feb 27, 2016 | Panasonic Audio Players & Recorders

1 Answer

Connecting a passive subwoofer to a denon 2113

you need another reciever/amp to power that sub, because that denon reciever is designed for a powered sub,. if you have another old reciever/amp laying around, you can connect the sub out from the denon into an auxillary input of any old reciever/amp, (switched to that input) with speaker wires from old reciever/amp to the passive sub

Mar 05, 2013 | Denon Avr-2113ci 7.1-channel Home Theater...

1 Answer

Can i connect my bose acoustimass 800 with any other receiver?

Surly you can connect these speakers to any receiver. It has an active subwoofer and 5 passive cube speakers. It can handle power up to 150W.

Apr 28, 2011 | Bose Acoustimass 6 III System

1 Answer

Unable to receive optimum output. The bass is totally flat !

Hi, ok the Bose Acoustimass III system consists of two small cube speakers and one subwoofer unit called the Acoustimass bass module. If the subwoofer stops working, three points can be the cause of the failure. The Bose Acoustimass III is a passive system, meaning the speakers do not power themselves, but instead are connected to a receiver or amplifier. Thus, the amplifier, the speaker between the amplifier and the subwoofer, or the subwoofer itself could be the issue.

Things You'll Need:

* Amplifier
* Speaker cable
* Extra subwoofer


Disconnect the speaker cable from the back of the Bose Accoustimass bass module and connect it to a subwoofer that is known to be working. If the subwoofer works, the bass module needs to be replaced.

Disconnect the speaker cable from the back of the receiver or amplifier you are using and from the back of the subwoofer in Step 1.

Connect a speaker cable that is known to be working between the back of the receiver or amplifier and the back of the Accoustimass module. If the module starts working, then the cable was the issue.

Disconnect the speaker cable from Step 3 from the back of the amplifier or receiver, then connect the cable to the subwoofer port on the back of an amplifier or receiver that is known to be working. If the subwoofer works, the receiver was the issue. If the subwoofer still does not work, verify that the speaker cable is in the subwoofer port of the receiver/amplifier and that the cable is connected securely to the subwoofer.

If you think you did the connection properly,Fine... If not you can use the manual from the below link and know how to connect it properly..

Have a nice day..

Feb 19, 2011 | Bose Acoustimass 5 III System

1 Answer

How to connect subwoofer

This manual discusses it somewhat.

Basically, feed the self-powered (active) subwoofer from the Subwoofer Out. There does not seem to be a way to adjust the subwoofer output to match the rest of the speakers because the sub out is muted during the adjustment procedure.

Another way would be to refer to page 15. The note at the bottom right suggests your subwoofer might accept full range speaker level inputs. Refer to the manual for your sub. I believe they mis-printed it and meant "active" subwoofer, as simply wiring a passive (unpowered) sub across the front speaker outputs might cause some amplifier overload issues and you would have no way of balancing it anyway.

Jan 17, 2011 | Technics SA-AX530 Receiver

2 Answers

Hi, I have the Kenwood Subwoofer KS-201-HT, my question is how do I connect it to my receiver?

usually subs have outputs 4 ur monitors however if ur sub is active @ ur monitors are passive then you need 2 connect sub 2 ur tape loop with rca connections,usually you use the send signal from ur reciever which would norm connect to ur tape input , if the sub is passive then u connect direct to speaker output on amp then monitors to the sat connections on sub

Oct 12, 2010 | Kenwood SW36HT Subwoofer

1 Answer

My redceiver gives me a message saying "protect" when i turn the volume up. this started after i hooked up a subwoofer, why is this happening?

You should consult the manuals for the receiver and the subwoofer to make sure you haven't connected the sub improperly. If the amp was working normally before you connected the sub, I would look at the sub hookup first. If the sub is a passive type, and you have connected it in parallel with your main speakers, the amp may not be able to handle the extra load. You may have to get another amp to drive the passive sub. If you have an active sub, you may not be using the right input/output connections between the amp and the sub inputs. Or, you may have hooked the sub up in a way that causes the amp to become unstable. Check the manuals. If you can't resolve it, come mback here with a lot more detail about your gear.

Oct 07, 2010 | Harman Kardon AVR 310 Receiver

1 Answer

Receiver cannot recognize subwoofer

As I implied earlier, take a clue from the physical style of connectors for both parts of the subwoofer function in the old and new receivers:

RCA connections are for Line Level signal between components only.

The input (bare wire) at the speaker is for AMPLIFIED signal.

You can't just modify one to fit the other and expect magic to happen. Be glad you didn't do it the other way around and modify an amplified (speaker level) outout into a Line Level input. You likely would have smoked that component.

Your subwoofer is a passive speaker, that is, like any other speaker it needs an amplifier. Many subs are self-powered (amp built-in) and they would mate well with the RCA sub output of the receiver.

Get yourself an Active (self-amplified) Subwoofer and run UN-MODIFIED RCA cables to it, according to its instructions, from the Sub Out of the receiver. Or get an amplifier between your receiver and the sub you have.

Feb 21, 2010 | Pioneer VSX-D607S Receiver

1 Answer

About technice sa-dx930

The one plug on the back of the receiver is an rca-type plug and is designed to be connected to a powered sub, which would also have an rca-type input. Even if you connected it, this output carries a line level signal and is not powerful enough to drive a speaker. If your sub has 2 connectors (same as a normal speaker) then you have an unpowered or passive subwoofer. You would either need a powered sub, or to use an external amplifier of some sort...then the sub output from your current receiver would go into the external amp...and the amp connected to the passive sub.
Hope this helps.

Mar 30, 2008 | Technics SA-DX930 Receiver

2 Answers

Lost instructions

The 'Subwoofer' output on your receiver is used to connect to a powered subwoofer with a built in amplifier. Your KLH speakers use what is called a 'passive' subwoofer, it gets its power from the receiver and then passes the higher frequencies to the left and right front speakers after taking out the low frequencies for the subwoofer. A speaker system with a passive subwoofer is good for casual listening, but a powered subwoofer is required for really hearing low frequencies and rumble in movies. The KLH speakers you have were highly rated in their time for their price. The four satellite speakers and center channel speaker have very good sound compared to the little 'midget' surround sound speakers most people buy today.

Here's how you hook them up:

- The left and right front channels from your receiver terminals should go to the terminals on the subwoofer marked 'From Amplifier'
- Your left and right front speakers are then connected to the subwoofer terminals marked 'To Speakers', they do not connect directly to your receiver.
- Your center speaker is connected to your receiver terminals marked 'Center'
- Your rear speakers are connected to your receiver terminals marked 'Surround'

That should get you up and running. If the bass isn't good enough with the passive subwoofer, you can get a decent powered subwoofer like the Velodyne VX-10 for about $150 and 'kick it up a notch'. Good luck and enjoy....

Jan 07, 2008 | KLH HT-9900 System

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