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In Reply to: RE: Sends it to a DSP processor ? posted by AbeCollins on November 11, 2023 at 13:06:55
Hi Abe, Thanks for your response. Yes the DSP is required for the speakers. They are DIY clones of the JBL M2 reference monitors which have no passive crossovers. All crossover duties and equalization are handled via DSP.
Yes, I will need a USB (3.2) to SPDIF converter prior to the DSP. The DSP box ends being a 2 in and 4 out since there are 4 channels of amplification required (Left & Right times Woofer & Tweeter).
Actually, I may avoid the USB/SPDIF conversion since I noticed the Wiim Pro (and Pro +) have a digital coax output. That unit claims to have SPDIF output capable of High Res bandwidths (greater than 44k/16 bit). My DSP box will be able to handle those instances, I believe.
Thanks again and BTW, I take the term "old school" as a compliment.
Follow Ups:
That unit claims to have SPDIF output capable of High Res bandwidths (greater than 44k/16 bit). My DSP box will be able to handle those instances, I believe.
Not very likely. Most of the time they are gapped at 48 and occasionally 96.
Even at 48 k you have only 1/48000 of a second to do all your calculations.
The Well Tempered Computer
Im not sure what you are referring to. MY DSP processor and DAC are certainly capable of better than 16bit/44k .
Perhaps you referring to whether the WIIM pro SPDIF output is similarly capable. I agree on that. It is their claim and I can't vouch for its accuracy.
I just setup a wiim and a wiim pro as my streaming tech. Two units allows me to do multi-room syncronized music which I have wanted to do for years.
I can confirm the wimm pro has both coax and optical s/pdif. Wiim home only optical output. The units neither output nor accept USB for input.
They support a remote but I found using the IOS phone app just as convenient.
In my case I am using the optical output of both wiim's to feed external dacs in seperate room systems for synced music streaming. I tried the coax output of the pro but to my ears with my SMSL SU1 the coax did not sound as good as the optical. This could be cabling issue as the COAX inputs test great with according to ASR, I don't know for sure.
I stream local files using an DNLA source device (CocktailAudio X100) as well as streaming TIDAL and Radio Paradise.
The sound from the streamers overall provided an immediate improvement in sound quality vs. using PC USB outputs. Having said that, I run PCs not MACS.
I got a 1/2 price deal on the wiim but paid full price for the pro. The only other streamer I have used that sounded as great is an RPI 4 setup, but I did not like dealing with the involved configuration for multi-room and mutliple playback devices using LMS.
From my experience I can recommend the WIIMS for ease of setup, with native support for TIDAL and Radio Paradise, easy mutli-room setup, and sound quality equal to RPI and superior to PC USB.
My next upgrade will be DACS that perform "all to DSD".
I have yet to attempt to stream playback of DSD files through the wiims but I will try that soon, although my ultimate goal is just to upsample input to DSD through the DAC hardware.
I'm not defending PC USB [I'm a Mac fanboy after all] but I'd be curious to know....
What Windows OS were you running and did you have the USB driver for your DAC loaded on the PC? The driver is usually supplied by the DAC maker. If not, audio quality could be severely limited from the PC USB. [Mac includes the necessary driver. More recent Windows has a USB Audio Class 2 driver built-in as well].
[[What Windows OS were you running and did you have the USB driver for your DAC loaded on the PC? ]]
Latest Windoz 10
[[Dac driver loaded?]]
Yes, ASIO when provided. Although with the Korg DAC and KORG driver, I did get blue screens, so junked that DAC...
I did hear a very significant improvement in sound quality when I moved the streaming off the PC,using either RPI or more recently WIIM.
I did notice an improvement recently from the PC when using Jriver and upsampling all the output to DSD. But my PC is also a monster in terms of heat and electricity and I want to get it out of my sound system altogether. WIIMs have helped me to do that satisfactorily...
WIIMs have become popular turnkey streamers around here. Many folks also use the Raspberry Pi 4 for making DIY streamers but with WIIM pricing so low it's hard to beat as it is already built and ready to go.
I say "old school" only because SPDIF has been around forever. I guess that describes me too!
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