CHORD ELECTRONICS DAVE

Discussion in 'High-end Audio Forum' started by magiccabbage, May 14, 2015.
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  1. GryphonGuy
    I have the QED glass toslink cable and it is a class above the other toslink cables I have used. I apparently I only have plastic toslnk cables until I purchased the QED. So at the risk of being flamed, I guess glass cables transmit light pulses generally better than plastics.

    Having said that, the Kimber USB cable I have (KS-2436) is a step above the QED again in terms of DAVE making great music in my system.

    Regards
    GG
     
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  2. Jawed
    Make sure you disconnect the USB cable when you want to listen to optical. If you don't disconnect the USB cable, you have lost all of the galvanic isolation that the optical cable provides.
     
  3. rgs9200m
    So far, DAVE is awesome with USB. But I have not tried any other connection. I just decided to quit while I was ahead and go the plug and play route.

    About burn in:
    My DAVE seemed to take a few days of use and being powered up to reach what sounds like full potential to me (especially transparency in the bass), but now all is well.
    I guess this is the same phenomenon as with the Yggy (to some degree; just guessing here).
    But now I see what all the fuss was about with the DAVE.
    Thanks Rob.
     
  4. theveterans
    The Xilinx FPGA chip is not made from microscopic resistor that needs to be in thermal equilibrium like the ones from Yggy. You probably get a brain burn-in in this case.
     
  5. rgs9200m
    OK, maybe brain burn in it is. Thanks for the info on the Dave vs. Yggy innards. I'm not sure about this. I didn't see much about it on the Dave thread, but if anyone else has comments on this, I'd be curious.
     
  6. STR-1
    With so much discussion about recreating live acoustic performances on home audio gear on this and other Chord threads, some might find this Hans Beekhuyzen video of interest -

     
    Last edited: Dec 31, 2017
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  7. onlychild
    I’ve noticed mine opens up more after about 30mins, but I don’t keep it on standby. It’s powerd off completely after each session.
     
  8. rayl
  9. onlychild
  10. rayl
    Fair enough if one interprets only literally, though I would propose the inference that burn in time is >= warm up time.... i.e. if you receive DAVE in a box brand new via FedEx and it is ready in 10 minutes, I would imagine that retrieving it from your drawer or even just flipping the power switch should not take more time unless something has since degraded (which is possible as all things age, but hopefully not for a few years!)
     
  11. GryphonGuy
    My experience is somewhere inbetween. After 20 mins of warming up from cold start there are no discernible changes for me but definitely in the first 10-15 mins DAVE can sound "odd" on some familiar tracks. So I usually just play a warm-up album at lower volumes for 20 mins and then DAVE is ready to deliver its sublime musical entertainment.

    Regards
    GG
     
  12. Jawed
    I was looking at this page:

    https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000PA1ASAW

    which mentions "BNC 50 ohm terminator", along with these worrying words:

    A 50 ohm terminator is, as far as I can tell, different from a BNC shorting cap. The 50 ohm terminator is presumably safe to use on both input and output BNC connectors on the back of DAVE, whereas I presume a shorting cap is not safe to use on the outputs.

    Something like this:

    https://www.ebay.co.uk/itm/BNC-Term...486944&hash=item1c3cb23bd2:g:GzwAAOSwY3RXJMlQ

    So with luck these are completely safe to use on all the unused BNC sockets on the back of DAVE and would be preferable to using just shorting plugs on the BNC inputs. What do you guys think?

    Now playing: Ian William Craig - On the Reach of Explanations
     
  13. rayl
    Wouldn't one at least choose 75 ohms over 50?
     
  14. Triode User
    I haven't a clue. Why not address a question to the designer of Dave? ie @Rob Watts rather than leaping to conclusions?
     
  15. Jawed

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