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Chord Electronics - Blu Mk. 2 - The Official Thread

Discussion in 'High-end Audio Forum' started by ChordElectronics, Jan 5, 2017.
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  1. watermad
    Feeding Blu Mk2 Clean Roon Data

    I home demoed an Auralic Aries G1 connecting to my QNAP TS-473 running Roon server feeding my Blu to as a replacement for my Logitech Squeezebox.

    Depending on perspective fortunately I heard no discernible improvement in sound quality, which was surprising as I heard a definite difference when I connected to my old Squeezebox, more body and musicality, or was that distortion. I expereienced something similar when I first upgraded to the Chord DAVE, and ran it in DAC mode through my Music First Audio Magnetic passive preamplifier.

    For background I have extensive isolation of my system, ferrites on the dual BNC DAVE/Blu Mk2 connection, all plugged intot he Shunyata Research Denali 6000.

    Has anyone tried the iFi iUSB3, https://ifi-audio.com/products/micro-iusb3-0/ infront of the Blu, as I can imagine all sorts of electromagnetic junk being pumped out of NAS and polluting the feed to the Blu?
     
  2. ecwl
    Sorry. I'm a bit confused about your connections and what you're referring to that showed "no discernible improvement". You mean G1 vs Squeezebox showed no discernible improvements? Or do you mean G1 to DAVE vs G1 to Blu2+DAVE showed no discernible improvements? And are you sure G1 is playing bit-perfect or whether you might have accidentally upsampled in G1? And are you playing regular PCM files (usually 44kHz 16-bit)?
     
  3. watermad
    G1 to Blu showed no improvement over direct to Blu.

    I was playing regular CD quality files with no DSP in either Roon or the G1 to my knowledge.
     
  4. watermad
    G1 to Blu showed no improvement over direct to Blu.

    I was playing regular CD quality files with no DSP in either Roon or the G1 to my knowledge.
     
  5. saudio7
    Yes, when you connect iFi after G1 it will be little bit better, then direct connection to Blu. On G1 you don’t have galvanic isolation.
     
  6. jacc
    I am using an ipurifier 3 just before blu. Sounds more smooth and a bit darker to me. I think jitter is not an issue for Dave but RF definitely is, where the ifi is nice tweak which won't break a bank. However, I must say the noise along the bnc connection is a separate issue...
     
  7. Pentagonal
    Not sure if this has been posted yet, but a BNC Coax optical bridge was just announced that specifically states it supports Chord's DX! This could be next level with regard to taming RF interference between the M Scaler / Blu MkII and Chord DAC! (I posted this on the Hugo M Scaler thread too but it applies here too.)

    "Audiophiles have sought to minimize noise transmission using cleaner sources, ferrite laden coax cables or myriad other tweaks. These solutions are partial or, at best, only attenuate the problem to subjectively match the noise floor. For those with the most resolving systems and highest appreciation of musical transparency, the optical galvanic isolation of OPTO•DX is objectively superior."

    https://audiobacon.net/2019/06/28/audiowise-inc-introduces-opto•dx-optical-isolation-bridge/
    https://audiowise-canada.myshopify.com/

    HeadFi review with M Scaler and Blu: https://www.head-fi.org/showcase/audiowise-opto•dx-optical-isolation-bridge-for-dual-spdif.23757/


    opto-dx-bnc-optical-10.jpg
     
    Last edited: Jul 13, 2019
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