I have a sony str-de 405 recevier . how do i connect a subwoofer to it .....

Hello Oliver, Question, the Sony sound equipment model, is the
STR-540 or the STR-HD540
Because of the STR-540, I can not find information to see the connection options you have to solve the problem you pose
I wait your answer
Greetings Franco Dosil

Hola Oliver, Pregunta, el modelo de equipo de sonido Sony, es el
STR-540 o el STR-HD540
Porque del STR-540, no logro encontrar informacion como para ver las opciones de conexion que tiene para poder resolver el problema que planteas
Espero tu respuesta
Saludos Franco Dosil
https://www.manualslib.com/manual/441025/Sony-Str-Dh540.html https://data2.manualslib.com/pdf4/99/9816/981588-sony/kdl48r530c.pdf?44a099fa3901575ad71a0683c529c045&take=binary

The reason you may find it difficult to connect the Sony Receiver to the Jensen JS650 is that the JS650 does not have a line level input (RCA) to match the RCA subwoofer output of the STR-DE597 receiver. In this case, all you need to do is connect an extra set of speaker wires from the "Speaker B" Left and Right speaker connections on the back of the Sony to the speaker input connectors on the Jensen. On the front panel of the Sony, select speakers A+B settings so that the subwoofer is on in parallel with the front speakers.

I hope this answer is helpful to your home system set up.

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.

Have you looked at the manual? There are procedures for adding a sub (which is NOT necessarily assumed to be there) and assigning bass to it.

http://www.retrevo.com/support/Sony-STR-DE475-Receivers-manual/id/387bh949/t/2/

Then there's the unidentified sub's manual and requirements to consider.

No. Like most AVR's it only provides a Line Level output for an externally powered subwoofer. Get a separate amp for the sub.

Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Sony-STR-DH510-Receivers-manual/id/23637ci375/t/2/

This sounds like a very poor connection. Please make a new splice on speaker and receiver. This should take care of this for you.

It is based on your sub-woofer type..whether powered or passive sub woofer..
Assume that you have powered one..RCA sub woofer jack is the best to feed it ..you should use RCA sub woofer output on your receiver as well..good luck

If your set up is HDR-AVR and TV all you need to do is go HDMI out from HDR to HDMI in(Sat.) of AVR and monitor out HDMI (or composite video) to TV. and select the Sat. input on the AVR. The sound is only comming from the HDR in this case and the composite video or HD video is being switched out to the TV when you select Sat. on your AVR

read the manual

http://www.retrevo.com/support/Sony-STR-DE845-Receivers-manual/id/387ci973/t/2/

First, it must be a self-powered subwoofer, then you've got some settings to select in the receiver.

Have you selected coax mode with the input button?. If so you may need to play around with the setup buttons. Can't give anymore advice as I've lost my manual. Good luck