Question about Marantz SR-7200 Receiver

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Sr7200 LFE (sub woofer) output stopped working

I have a powered sub woofer hooked up ( 12" Polkaudio) and suddenly it stopped working ? The sub seems to work fine (with other souces).

What happened ?

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Re: sr7200 LFE (sub woofer) output stopped working

Chances are if The Receiver only has sound in Stereo Direct Mode and all surround modes and Sub out are Inop the DSP (Digital Signal Processing) Card is most likey defective. These boards are not available from marantz (D&M Holdings) and must be Component level repaired which usually is not cheap. If Only the Sub out is not working check setup to be sure sub woofer is set for on. Also If On Screen setup menu does not appear on video monitor Unit may need to be Reset manually which entails discharging a Capaitor on main P.C.B Contact for details

Posted on Jan 10, 2008

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My powered subwoofer no longer works through the receiver

if you have your front and centers set to 'small' you want your Bass out to be subwoofer only, and the rca jack labeled 'sub out' is the only place to connect your sub to if you want to control the frequencies with your reciever. I dont know the brand of your sub, or the inputs on the back of it to advise you where to connect, but it sounds like it worked for you at one time, but suddenly it does not

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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..
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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

Cant get klipsch sub woofer to work. do is there a menu setting through receiver to do this?

What model is the sub? Is your Klipsch sub powered? If it's already plugged in and powered on make sure you have the RCA cable going to the correct LFE output on the Denon and have it set to 5.1.

Jan 03, 2011 | Denon AVR-1601 Receiver

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I been having a problem with my JBL TLX CSS-SUB1, I don't have the manual. Connecting speaker wires from the JBL TLX CSS-SUB1 to the a Digital Audio/Video Control Center ( it's a reciever) I confused,...

The connection on the receiver would be the sub woofer out. Not a sub woofer out LFE, a sub woofer out with speaker wire connection. From there you plug it in to the top section of the available terminals on the sub you are referring to (speaker level input). One in positive and the other in negative matching what you did on the receiver with correct ends. The speaker connections underneath the top connections is for additional speakers like surrounds to be able to be connected directly to the sub woofer speaker level out for sound. This of course would be for an older receiver connection. I do not think it is possible to convert this connection to an LFE and have it work properly. If the receiver does not have sub woofer speaker connection and only a RCA out then you can try to connect both rear speaker connections from the receiver to the speaker level inputs on the sub and then connect your rear speakers to the speaker level output on the sub to power them. This is an active sub woofer but for some reason they made it connect as if it was passive. I am not sure if this sub is designed for really low frequencies required for movie or if it is better for music.

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Yes, go to your menu then setup then speakers then subwoofer, it's probably in "LFE" it should give you the option of Sub, LFE, or Both. that should do the trick. Also check the crossover point and season to taste. While your at it; there should also be a setting for speaker level, toggle down to sub and adjust the sub out level, it's probably at it's minimum setting. Hope this helps

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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,

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Go into setup and make sure sub is turned on and set sub for LFE + main otherwise sub will only work with Dolby Digital LFE signals. LFE plus main setting will allow sub to output low freq's that would normally go to Front Speakers. Refer to Owners manual setup Info.

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