Transport: Sony UBP-X700 UHD-Blu ray player spdif PC using Musiland Digital Times WASAPI via BNC connection - DAC: DC-1->XLR XPA-1 , RCA->Basx A-100 CD: Denon DCD 600 PCM 61 DAC. RCA Amp: XPA-1 gen 2 using XLR connections. Speakers: Axiom Audio m80 V3, Sennheisser HD700 headphones. two pairs 12 guage each bi-wire speaker cables per monoblock Headphone amp: Basx A-100 (INCREDIBLE VALUE!!)
You can do this on Mac OS. You have to connect 3 x 2-ch DAC's, create a composite audio device in Audio MIDI Setup, and assign your channels. I've never actually tried it, but I'm sure it'd work fine.
The next problem would be how to control volume. The only real solution would be to either use the Parasound P7 or set all the DACs to the approximate max volume you listen at, and then do small adjustments in the digital domain (i.e. using the Mac audio volume controller).
Honestly, unless you have a wealth of multichannel material, I'd just pass it through your AVP and not worry about the incremental improvements you might get through the above.
Every modern PC can be used to play FLAC 5.1 music via HDMI or DVI. If using DVI, just make sure that your DVI-to-HDMI cable supports audio. Further, some (more than a few years) old vidcards have a S/PDIF header through which, to be able to output sound, they require to be hooked up to the S/PDIF output of either the PC motherboard or a soundcard. However, S/PDIF does not support multichannel sound in lossless format (only lossy formats, such as AC3 and DTS, may be supported by S/PDIF to achieve multichannel sound). Another modern feature found on vidcards nowadays (and on some, but not all, older ones) is called audio bitstreaming; it means that audio formats such as DTS-HD MA and TrueHD (from Blu Ray, for example) can be sent through HDMI to let the processor in your Onkyo do the decoding. However, audio bitstreaming is not required for playback of multichannel FLAC.
To be able to get the best result while doing multichannel playback, going through a separate stereo DAC is generally not possible, nor recommended. Using three stereo DACs will, except if you can feed each DAC the exact same external clock signal coming from an external clocking device, only cause timing differences between channels due to a phenomenon called clock drift. (And besides, their jitter characteristics still wouldn't match even if you did manage to identically clock the three DACs........). Instead, see if it's possible to hook up your Onkyo's HDMI input directly to your PC.
• UMC-200 • XPA-2 • Airmotiv 5 • Eastern Electric MiniMax DAC Supreme • Canton Vento 890.2 DC • Westone ES60 • Astell & Kern AK240
Post by flamingeye on Aug 21, 2013 21:36:57 GMT -5
Yea ok I guess I was just dreaming , I just wanted to squeeze as much SQ out of the PC like you can with the norm pc + dac + stereo , no chance Emotiva would make a mutli-channel dac ha ? I did have my PC connected to my oppo 103 with the ethernet cable and that worked , but I’m now having problems with that connection so I was looking for alternatives my PC is 10 years old so no 5.1 outs, s/pdif, HDMI but I’m looking to upgrade in the near future .
HT room 15'x30'x9.5' ,Panasonic TC-P54" s2 plasma ,APC- H 10 power conditioner/regulator, Marantz A/V 8801 ,Emotiva IPS-1 amp,BPA-1 amp , oppo BDP 103 ,Technics quartz sl-10 linear tracking turntable ,Dish hopper/W sling ,L/R mains Klipsch KG 5.5 ,L/R Heights Klipsch KG .5 ,Center Klipsch KV-4 ,L/R S Klipsch KG 5.5, L/R S B Klipsch RF15 ,Subs dual ED a5-350 with Bash 500 digital amps