On my ONKYO tx-nr737, when I am connected via Bluetooth to my iPhone for music I get a SP Wire message. When connected via radio on receiver I have no issues

Hello Anthony, try your Onkio, with other sources of sound, example DVD or CD and check that the sound is clean and shows no error
Then, look for another player with Blue Tooth connection and try, if you have the same error, you may have to update the Firmware
You go on the Onkio page and you search in downloads and by type of equipment and model, then you download it in an empty Pen Drive, without any file type, then you place it in the Onkio and download it
If this does not correct the fault, I suggest you look for a specialized technical service
Greetings Franco Dosil

Hola Anthony, prueba tu Onkio, con otras fuentes de sonido, ejemplo DVD o CD y comprueba que el sonido sea limpio y no muestre error
Luego, busca otro reproductor con conexi?n de Blue Tooth y prueba, si tienes el mismo error, puede ser que tengas que actualizar el Firmware
Entras en la pagina de Onkio y buscas en descargas y por tipo de equipo y modelo, luego lo descargas en un Pen Drive vaci?, sin ning?n tipo de archivo, luego lo colocas en el Onkio y lo descargas
Si as? no se corrige la falla, te sugiero busques un servicio t?cnico especializado
Saludos Franco Dosil
http://www.onkyo.com/manual/txnr737upg/adv/en/index.html
https://www.es.onkyo.com/downloads/2/6/7/9/5/Manual_TX-NR737upgspo_BAS_En.pdf

https://www.es.onkyo.com/es/articulo/actualizacion-del-firmware-para-el-tx-nr737-119677.html

No, you cannot do this. Onkyo is just a "receiver" to receive signal not a "transmitter". The receiver requires a "host" to send signals via bluetooth to it in order to playback instead of sending signal to another receiver, your bluetooth headphone. Bluetooth earphone also needs a host (a smart-phone)to send signal to it to playback for you. Any attempts to ask onkyo receiver to send signal via bluetooth will be in vain.

The TX-8511 is an older AV receiver with only composite video inputs. Your DVD player may not provide this type of output as it's not capable of HD video. If your dvd player has a composite output with a Red, White & Yellow set of outputs, that will connect into the Video 2 inputs on the receiver. Your TV will need to connect up to the Video2 or Monitor output. You'll need a set of composite video cables with the red-white & yellow RCA type plugs.

Here is a link to the manual for this receiver:
Receivers Receiver Stereo Receiver AVR TX 8511 Onkyo USA

sounds like a hdmi fault on the dsp board

Get a RCA cable and connect from your amp where it said Sub Woofer in the Pre Out box in the back of the amplifier top left hand side and take it to the "Sub In" located in the back of your Sub woofer bottom right hand (White round connector).
Good Luck!

Perhaps you just use a cable like this:

use the tulip plugs and plug them into the AUX of the amplifier. Then at least you can play the music via the receiver.

bluetooth the computer to the receiver

Yes it is possible. Any audio device with an earphone out jack can be connected to a receiver by using the CD input or the AUX input jacks (white and red) on the receiver. All you need is an adapter cable with the stereo 3.5mm plug on the iPhone side and the 2 RCA connectors on the receiver side. You can get these for $2 or so at Amazon.com or at Radio Shack. Adjust the volume and select on the receiver, the input you used to connect and enjoy.
http://www.amazon.com/RiteAV-3-5mm-Stereo-Male-Cable/dp/B000V0G2C4/ref=sr_1_1?ie=UTF8&qid=1306765483&sr=8-1

See above link for one example of the cable.

Hi Mdensonjr, I see that this was posted in 2011 but well the speaker selector would be connected to the Front speaker terminals, Thanks, JT

Your tuner will be the limiting factor regarding sound. The Onkyo accepts any stereo analog input via RCA connectors, period.

Those "black/red spring loaded wire inputs" are speaker outputs and if you hook one of those to an innocent audio device's Line In connections you might kiss it all goodbye.

Read the manual...

http://www.retrevo.com/support/Onkyo-TX-8211-Receivers-manual/id/365ci165/t/2/