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Receiver amp problem?

Recently (2 mos.), sound to the speakers is not clear. Not "crackly". Particularly with bass. It seems that the signal coming from the receiver is poor. It is the same for all outputs (CD, tuner, etc.). I have tested with other speakers and other speaker wire. Thoughts?

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Re: Receiver amp problem?

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Posted on Oct 04, 2007

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I have Denon AVR-2310...but lost operating manual ! In audio set up, more specifically speaker configuration, a choice is given between " FTE", and "FTE +main". What is the...

The manual...

I'm pretty sure you mean "LFE + Main".

You need to identify the speakers to the receiver as Large or Small regarding their bass-handling capacity more than their actual size.

"LFE" removes the possibly overloading bass in a given speaker channel containing 'small' speakers and sends it to the subwoofer.

"LFE + Main" is sort of explained on page 29 "Bass Setting". The intent of LFE+Main is to task your subwoofer with the bass that ALSO exists on all other speaker channels regardless of their ability to handle it all by themselves. As you can imagine, this might make the subwoofer respond to sonic events that are actually supposed to be directional from, say, the rear channel(s). In that case the event might seem to come from wherever the sub is located instead of the intended direction; or at the very least it might seem to come from both places which is probably not what the sound engineers intended when they recorded the piece.

Having full-range speakers 360-degrees around PLUS a subwoofer, I don't subscribe to the 'bass-is-non-directional' school of thought. If you've ever felt the concussion from and subconsciously glanced toward one of the speakers after, say, a huge explosion, the system is working.

Sep 03, 2011 | Denon Audio & Video Receivers

1 Answer

Htddw7600, brand new, sub amp is not working, only way to get any bass sound is to unplug the sub cable from back of main amp and touch it on side of sub out port.

You have a very good of the best of SONY..SUB does not get activated automatically especially on STEREO mode.DIRECT STEREO Notes • No sound will be output from the subwoofer.
.your system has Dedicated Power Amplifier for 2 Externally Driven Sub-Woofers (200W RMS x 2) order to activate the sub woofer amplifier you need to make a selection on the surround modes while you are switching the modes of the surround you will see the speaker position on the display of receiver as well..if you do not see the sub woofer it wont be activated..Sound Field Program (A.F.D) is a good example to test it..
Take care and please Remember to rate/vote and give me 4 Thumbs Up
for Helping out the Community :)

Hope this helps!

Additionally please follow the instruction on your user manual to activate the SUB ,as is follows..

Low-frequency (bass) signals can be directed to the
subwoofer and/or the front left and right speakers
according to the characteristics of your system. This
setting also determines the routing of the LFE (low-
frequency effect) signals found in Dolby Digital or DTS
Choices: SWFR (subwoofer), FRONT, BOTH
• Select SWFR if you connect a subwoofer. LFE and
low-frequency signals from other channels are directed
to the subwoofer according to the speaker settings.
• Select FRONT if you do not use a subwoofer. LFE and
low-frequency signals from other channels are directed
to the front speakers according to the speaker settings
(even if you have previously set the front speakers to
• Select BOTH if you connect a subwoofer and you want
to output low-frequency signals from front channels to
both the front speakers and subwoofer. LFE and low-
frequency signals from other channels are also directed
to the subwoofer according to the speaker settings. Use
this function to reinforce low-frequency signals using
the subwoofer when playing back sources such as CDs.

Jun 23, 2011 | Audio & Video Receivers

1 Answer

I have connected all speakers but not getting anything coming through the subwoofer? I have connected all of my existing Sony suround system speakers 4 corner and one middle and the sub woofer to the...

You need to use an amplified sub. The Yamaha receiver is only sending "Pre-Amp Signal" not amplified audio like the rest of your speakers. If your sub has a crossover built in, connect it's speaker level (wires) to the "B" side of the receiver which will send audio to your sub and it will cross it over internally. Not the best sounding, but it works. Amplified subs range in price from 200 and up. Hope this helps

Jun 14, 2010 | Yamaha Rx-v465/rxv465 Home Theater...

1 Answer

Can a car amp be hooked up to this recevier for more bass power

Amps don't 'make' bass. They amplify what comes into them as accurately as possible. Your source makes the bass and speakers recreate it to varying degrees of fidelity.

You might add a powered subwoofer to your speaker complement if you don't already have one.

Automotive audio is highly over-rated as far as performance specs are concerned. They basically get away with lying about everything because there doesn't seem to be a standard by which they are judged as home audio is.

What car amp are you contemplating and what speakers would it push?

May 20, 2010 | Pioneer VSX-403 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

1 Answer

Bare wire sub to single RCA jack receiver

Yes you can modify RCA cables to make bare wire tails.
If the unit has a sub o/p then you just connect up your sub bass unit to whatever the amp needs.

An RCA cable is 2 wire which is all you would normally need for sub bass speaker level signal.
It may be a good idea to eventually upgrade the wire size if you want really good sub bass as lower frequencies draw more current and so require more copper.

Please let me know if this any help, thanks for using FixYa.

Sep 20, 2009 | JVC RX-554V Receiver

1 Answer

Technics su z2 amp shuts off sound

hello. we cant help if we dont know what music source you are using.

Apr 13, 2009 | Technics SA-AX530 Receiver

1 Answer

Onkyo TX-SR606 bass treble settings seem to make no difference

I ran into the same issue and was stumped at first. Then I noticed somehow I had changed the sound processing to "Direct" which meant the signal coming from the source was bypassing all of the control in the receiver. All I had to do is select another option (press stereo for example on the remote) and kick it out of the direct mode.

Dec 21, 2008 | Onkyo TX-SR606 Receiver

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

1 Answer


check to see if the radio is clear. If it is it may be the signal going into the amplifier. if it is muffled as well, depending if you have an Equalizer hooked to the unit. This also could cause the problem. Finally check the bass, treble balance and volume knob but turn them back and forth while unit is on and see if signal clears up momentarily. if this is the case the control knobs need to be cleaned. Also spin the connection jacks {RCAs} in the rear and see if this clears it up. If not you may have to have the unit serviced by a professional.

Jul 13, 2006 | JVC RX-618V Receiver

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