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How do I attach the Subwoofer to the Receiver and what Subwoofer settings do I use?

I have a pair of KEF IQ9?s; a KEF 3500 Subwoofer My receiver is a JVC RX 5000VBK (has a Subwoofer Out jack but no internal speaker settings.) Question: How do I attach the Subwoofer to the Receiver and what Subwoofer settings do I use? If I use the Subwoofer Out from the Receiver and the LFE setting on the subwoofer I am feeding signals of 250 hz flat and the Crossover Frequency control doesn?t work so that I?m duplicating many of the bass frequencies. I?ve been advised that attaching the Subwoofer to the same terminals as my loudspeakers could create an overload. The only other Receiver outputs I have is Tape Out, and that?s a fixed volume signal. I am at a loss. How else can I attach the Subwoofer?

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SOURCE: no signal on subwoofer out in Onkyo TX-SR703(E) - similar to TX-SR803

Hey Tad, I have the same problem and perhaps a solution. I just moved to the other SW "pre-out" and it seems to be working..the green light is on . Whatever works i guess.

Posted on May 14, 2008

  • 319 Answers

SOURCE: treble is non existant anymore

Your speakers may have blown tweeters and/or crossover components. Have serviced

Posted on Aug 14, 2008

  • 80 Answers

SOURCE: No test tone from subwoofer during balance testing Yamaha RX-V430

there's no test tone under normal use for the sub. It only shoud test the three front and two rear. ther' are disc you can use to test all the speakers. ( If you are into Pink Folyd, the movie The Wall has what you need to help balance the speakers

Posted on Jan 19, 2010

  • 4234 Answers


First of all the KEF is a powered sub which means that it wants a line level signal NOT a speaker level. Send the signal from a tape output or pre-amp output to the sub input. The overload is because the impedence load for the speaker output is too low and looks like a short to the amp. Continued attempts to connect the system as described will result in damage to the output section of the amp.

Please let me know if you need more info.


Posted on Feb 03, 2010

  • 8546 Answers

SOURCE: Is it totaly ok to just connect one pair of JBL

The only relevant speaker spec is the impedance. As you probably realize the Pioneer SX-255R recommends 8 - 16 ohm speakers.

Four ohms is on the hairy edge of too low. You could certainly try it but if any strain or excessive volume is used you could see something go poof!

The low end of 120Hz says don't push the bass to them.

Posted on Jul 14, 2011

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I am unable to find the owners manual for the Teac MC-DV100 SuybWoofer

For almost any set-top box, there isn't a sub-woofer output. Without that output (it would be labeled on the STB), you can't hook up a subwoofer directly to it.

HOWEVER, the model number you give isn't just a subwoofer: it's a whole sound system with a subwoofer attached to it. If you have the whole sound system, you just hook the STB's audio output to the amplifier's "Aux Input" (it might also be called "line input").

If your model doesn't have that (can't tell from the web), you'd have to buy an "AV Receiver" that has at least a 5.1 set of outputs. These start at maybe $150 new, $50 on eBay. MAKE SURE YOU BUY A RECEIVER WITH A "powered" SUBWOOFER OUTPUT!! You connect the receiver to the STB, and the subwoofer to the receiver.

Jul 15, 2015 | Teac Audio & Video Receivers

1 Answer

I have a Sony STR-DE597 FM/AM Receiver .It has audio out plug and i have a Jensen js650 100 watt Subwoofer. how can i hook them up? Thanks.

The Jensen JS650 does not accept line level input so you need to use the Front B speaker output from your Sony receiver and not the RCA subwoofer output. Even though your subwoofer is active, it does not support line level (RCA) signals.

Just connect the subwoofer as you would a pair of speakers. Once connected, you make sure the front panel speaker switch on the Sony is set to A+B so you get sound from your existing speakers (A) and subwoofer (B).

I hope that works for you.

Feb 15, 2015 | Sony STR-DE597 Receiver

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I have a Yamaha HTR 3063 reciever and I just got a PSW 2000 Kef sub and I can't get the sub to WORK NO MATTER WHAT I DO PLEASE HELP

That is a potentially great combination. I have a Yamaha receiver but I am not familiar enough with Kef to know but is it possible your receiver expects to be connected to a powered sub. Are you sure the Kef works by itself? Have you checked to see whether the receiver subwoofer output works with another speaker? Could receiver mode selection be a factor? My Yamaha switches various functions on and off depending upon your preference.

For what it's worth, the troubleshooting section of my Yamaha manual says a subwoofer no sound problem can be caused by selecting MAIN LFE/BASS OUT on the SET MENU when Dolby or DTS material is being played or selecting SWFR when a 2-channel source is being played. Something has to work!

Sep 10, 2012 | Audio & Video Receivers

1 Answer

I have the following equipment and am going crazy trying to figure out how they get connected together. I also have the Carver Multi CD player and Carver Cassette Deck which I was able to connect to the...

Get a separate amp for the 901's and the rest falls into place.

1,2, 5) Place the 901 Active EQ between the pre/main front OUT of the receiver and the TFM-55X. Attach the 901's. Keep track of the jumpers you remove from the receiver. Or replace the jumpers with RCA splitter cables so you still have pre/main connection but can share the output with the TFM.

3) Pinnacle subwoofer (self-powered?) to the subwoofer out of the receiver.

4) Bose (AMS???) 5. As surrounds on the receiver. Place the sub module toward the rear so it mates sonically and directionally with them.

What? No center speaker? I'd get something more robust with bass capabilities, like a pair Bose 301 series 1's because the tweeters face in one direction only.

Except for the amps and the cube stuff that is essentially what I have. 6.1 with full-range speakers everywhere.

Aug 31, 2010 | Onkyo TX-SR803 Receiver

1 Answer

Is this receiver capable of speaker signal output to "A pair" AND "B pair" AND subwoofer AND center channel simultaneously? How do I program that? Can this receiver be used as a pre-amp for switching...

According to the manual, which you should have:

1st question: No "A" and "B" choice, just one set of Front speakers. Center speaker, yes. It requires a self-amplified subwoofer.

2nd question: In the manual. Select Speaker Sizes, presence, distances and other parameters. Run Test Tone for relative volume of each.

3rd question: Yes, for stereo material only. It has no multichannel Line Level pre-outs.

Aug 08, 2010 | Sony STR-DE475 Receiver

1 Answer


First of all the KEF is a powered sub which means that it wants a line level signal NOT a speaker level. Send the signal from a tape output or pre-amp output to the sub input. The overload is because the impedence load for the speaker output is too low and looks like a short to the amp. Continued attempts to connect the system as described will result in damage to the output section of the amp.

Please let me know if you need more info.


Feb 03, 2010 | Technics SA-DX750 Receiver

2 Answers

I have a Technics SA-G90 AV Receiver. I have all the original speakers and they still sound great. I was wondering if there was any way to buy a subwoofer and hook it up to this receiver. I know this...

Sight unseen, any powered subwoofer can be hooked to any older gear. Just run a pair from an unused Tape Output to the Sub (you might have to get a Y-cable to make it a mono input). You might not be able to match levels, though, so you sub amp should have some kind of volume control.

Nov 05, 2009 | Audio & Video Receivers

2 Answers

Kube 2 subwoofer hum

The Kube Sub-woofer is earthed via its 3 pin plug. The Onkyo and other components I have in my system are not (they are double insulated). During normal operation, a difference in electrical potential can exist between these components in the system. I found that this potential was finding a path to earth via the audio cable and on through the subwoofer's earth. The path was via the earth portion of the audio cable and so gave the hum irrespective of volume levels set either on the Onkyo or the sub.

The fix is to ground the Onkyo to the sub. I used a length of electrical cable between a panel mounting screw on the back of the sub and a screw on the casing at the rear of the Onkyo. Try it out with a piece of cable manually touching screws with the bare ends of the cable until you find ones that give continuity( the hum will go immediately). I then crimped a small fork end electrical fitting onto each end of the cable which can be slid under the slighly loosened screw head and resecured. All I hear now is the fan on the Blu-Ray player!

Jan 31, 2009 | Onkyo TX-SR606 Receiver

2 Answers

Onkyo TX-SV525 Receiver subwoofer pre out no sound

Yes turing on the "A" speaker is required for the Onkyo, but that only turns on the 2 front speakers in the "A" speaker jacks.

You may also need to check and see if the Onkyo has a menu selection in the setup menu that will turn on the sub woofer output on the back of the receiver.

I have seen on countless occasions where people just have a hard time finding that sub woofer option on their receiver.

I do not have the manuals for this Onkyo, so I can not tell you the exact way to find it.

I have been repairing surround receivers since they have been on the market and beleive me, you are not alone in this situation.

Sometimes it seems like you need a Phd. in programming or something similar just to firgure out how to set one of these up.

The solution should be in your owners manual, with the problem then being, just where in the manual. Go slowly thru it paying the closest attention to anything about set up procedures.

I have also seen at times where the setup for the sub-woofer is not listed as sub-woofer, but as "LFE" (low frequency effect) . So keep your eyes open for that.

something else, your sub woofer may have an auto turn on. That means it will only turn on if it detects an input signal. Make sure yo uhave the volume up enough on the receiver to trigger that auto turn on if yours has one.

I would like to have been more help, but without the manuals I can only give you general type thngs to look for. These type of receivers are all so different and all so complicated to operate. The days of just turning on a stereo, selecting your source and turning up the volume seem to be over.

Let me know if you need any more assistance from me.


p.s. Very nice system you have, when you get the Kef working I think you are going to just love this system. and Onkyo has the best quality receivers in their price range.

Jun 27, 2008 | Onkyo TX-SV525 Receiver

1 Answer

Insignia NS-R2000 receiver

Check the impedance ratings of your speakers. Sherwood, the actual manufacturer of the NS-R2000 receiver, suggests that you use speakers with an eight ohm impedance if you have only one pair attached. If you have two pairs of speakers attached, the impedance rating of each pair should be sixteen ohms.

This is because Sherwood wired the receiver such that an additional pair of speakers is placed in a parallel circuit to the first set. When this is done, the impedance (resistance) of the load seen by the amplifier drops. As resistance drops, you get closer to a short circuit (no appreciable resistance).

Many other receivers wire the speakers in series, which causes the impedance to go up.

Personal experience seems to suggest that the amplifier is OK with a four ohm load on it. It does run warmer with a four ohm load, which is what you'd expect. It's when you have multiple sets of four ohm rated speakers that you will get into trouble, as this means the receiver only sees a two ohm load. This will cause overheating and shutdown.

At this point the power transistors in the amplifier may have been damaged. It may require repair. Fortunately, replacement parts are readily available (though not from Sherwood or Insignia). If it continues to shut down, stop using it. You could end up burning out your speakers.

Jan 09, 2008 | Yamaha RX-V2400 Receiver

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