Originally Posted by dmet1
Can someone please guide me on the best way to hook up the Oppo BDP 105 with an Onkyo TX NR 5009 amplifier : to be able to make use of the Oppo's DAC to improve sound quality.
My config is Sonos ZP 90 connected through Optical Cable to Oppo 105. Oppo connected through the Multichannel analog outputs to the Onkyo. Onkyo is connected to Klipsch reference speakers through Banana Plugs and Diamond OFC. I only have FL, FR, C and SW hooked up at this stage.
With this configuration, I do not get any audio output on the C and SW although the FL and FR are working fine. This is happening with 5.1 DTS / SACD discs played directly on the Oppo and also with music streamed from the Sonos through the Oppo to the Onkyo.
- make sure the Onkyo multi-channel inputs are selected for the playback input
- make sure the Oppo Playback Setup is configured so that SACD Priority is "Multi-Channel"
In the Oppo Audio Processing Menu:
- make sure the Oppo Speaker Configuration is set for 5.1 Downmix (or 7.1 if you are using all 8 input channels) and that the SL/SR (SBL/SBR) speakers are set to OFF (this redirects all surrounds to the fronts)
- make sure Sub is set to ON.
- stop any source from playing (you may have to eject any disc and go to "Home"), then back to Setup / Speaker Configuration and enable the test tones and make sure each speaker, L/R/C/Sub, plays the appropriate test tone. Test Tones will not be available if any source is playing or paused.
- if you want bass-steering (subwoofer output) for Sonos sources, set the Front Speakers to Small and set the Oppo crossover appropriately
- Sonos, as a stereo source, will not output to Center unless you enable DTS Neo:6 Mode in the Oppo
- optionally, if you don't need the Oppo to play to a second zone or to a dedicated stereo system, consider connecting the Stereo Outputs to the Onkyo FL/FR inputs and do not use the Oppo multi-channel output FL/FR RCA connections. In the Audio Processing / Stereo Signal menu - set Stereo Signal to Front Left/Right. This will use the best DACs for FL/FR.
When I take the Oppo out of the equation and stream the Sonos directly to the Onkyo through the Optical connection, all speakers work fine. With this setup, the sound quality appears clearer - but then this could be because of ALL speakers contributing. Or could it be because the Onkyo's DAC is superior to the Oppo's ? I certainly hope not, otherwise I would have blown $ 1200 on the Oppo (I plan to use the Oppo for Audio only at this stage, not for video).
You must be using DTS Neo or similar to expand Sonus into surround if you are getting a center channel from the Onkyo.
Are you using Audyssey in the Onkyo? If so and it is correcting a severe room problem, it is possible that you will prefer that sound over using the Oppo DACs bare. Audyssey tends to jack up the HF bands which can create a sense of clarity (and possibly fatigue for long listening sessions).
Try giving the Oppo a shot though for several days. I originally liked Audyssey - I thought - but now I really don't care for it so much and generally prefer the Oppo analog outputs.
SteveEdited by stevepow - 1/27/13 at 10:57pm