B Speakers: Rear A Speakers and Sub stay on

It sounds like you overloaded the Denon avr with too much resistence from the speakers. Please check the total resistence of the speakers before you connect them all. Also check that the speakers or their wires are not shorted!

hi,
You can't connect the pre out of your AVR to this sub woofer. Do one thing connect the frond left/ right channel speaker "B" out of harman kardon to the sub woofers left right speaker in put. you can connect the speaker out "A" to your normal left right speakers. Remember to switch Speaker "A" and "B" in ON position in your AVR. Also do one thing go to the speaker setup of AVR and switch OFF (slelect NONE) the sub woofer.This will disconnect the sub woofer pre our and the sub frequency will mix with frond left right channels.
ok

IAW the manual...

Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Denon-AVR-791-Receivers-manual/id/23693ag505/t/2/

Page 5

On the front display of the unit, you should have indicator icons that light up if a speaker is being used. Are there only 3 speakers lite up, or are there 5? As a quick check, make sure your speaker connections are secure, and then make sure your surround mode is set to a 5 channel surround mode. 5 channel Stereo is a good one to test with. Also, you can hit the "test" button to see if the speakers are connected and working, it will give a test signal out of each speaker independently. Let me know what you find, and I can answer more.

Hi,
Your sub-woofer apparently does not have an amplifier built into it. This type requires you to use your front left and front right speaker output to got through it to your regular speakers. It is called a passive sub-woofer for that reason.
To set it up, Connect your front speakers to the "output" of the sub. It should say "to speakers" on it.
Then connect the Speaker Outputs for the left front and right front on your Denon AVR-391 directly to the Sub. It should say on the back of the Sub "to amplifier".
Here is some theory you should know, if you don't already know it, that will help you get a satisfactory result in setting up this system.
There is a condition on setting up all speakers and subs that not everyone know. It's call "phase alignment". Phase alignment (A Good Thing) refers to all of the speakers in a system moving in the same direction (in and out) at the same instant in time. This gives you much clearer sound and better response from your sub-woofer.
Phase Cancellation (a bad thing) is when some of the speakers are moving out and other moving in during the very same instant in time. It causes problems in sound.
IN A SUB-WOOFER, IT CAN CANCEL OUT THE LOW NOTES.
Here is how to handle it:
On the back of the receiver the speaker terminal outputs are colored Red and Black. Black is considered negative and Red is considered positive. On the back of the Sub woofer and on the speakers the same colors apply. MAKE SURE THAT ALL OF THE CONNECTIONS GO BLACK TO BLACK AND RED TO RED WHEN CONNECTING UP THE SPEAKER WIRES.
The system will work either way. But you will have severe bass loss if the woofer wiring is out of phase because of phase cancellation.
Hope this helps,
Best Regards,
Mark


"Phase Cancellation"

check if left speaker is shut off /connections one speaker my be on a side the other on b side check all speaker connections

hi,
first of all check ur sub woofer is it working or not. for that pull out its RCA connection from the receiver. power on the sub woofer and touch RCA's middle pin with ur finger. if its working it will produce a hum. if ok, go for the next,

do the following setup in ur av receiver
press menu and select manual setup and press enter
in manual setup select speaker setup and press enter
in the speaker setup select sub woofer and turn it on .
ok

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.

The spkrs sound like they are bi-amp spkrs, meaning you have multiple terminals on the backs of each spkr, the jumpers on the spkrs should be connected as such. Now you just connect the spkrs according to the Denon spkr conection diagram. Do not use the surround back unless you have 6 or 7 pair of spkrs

in the Denon setup under speaker configuration set the sub to LFE+Main