Search results for query: EQ
  1. Rob Watts

    Watts Up...?

    It depends upon how the source does the EQ dithering for the outputs - I would try both, 24 bit or 32 bit and use the output setting that gives you the best impression of depth. And agreed I don't feel any need to use EQ at all with the Stealth with Hugo 2 - and that would be the far better...
  2. Rob Watts

    Chord Electronics - Blu Mk. 2 - The Official Thread

    No I have not tried any EQ, and perhaps my worries about DSP EQ is over played; but my experience with designing EQ was that it was hard to maintain 200 dB performance; and all designers of DSP software would make the perfectly reasonable assumption that 200 dB was good enough; the reality is...
  3. Rob Watts

    Watts Up...?

    So one way to evaluate whether the EQ engine on your PC (it's 64 bit floating point) itself is changing the sound quality is to set all the sliders on parametric eq to -1dB. Then on your Chord DAC increase volume by 1dB. A perfect EQ should sound identical with it on or off; but when I have...
  4. Rob Watts

    Watts Up...?

    I am afraid I don't know the answer to that for sure - apart from knowing conventional EQ is subjectively flawed. I know a lot of recording engineers prefer analogue desks (using DACs and ADCs with analogue EQ), saying they sound better. How much is down to preferring distortion, or how much is...
  5. Rob Watts

    Watts Up...?

    The new Quartet M scaler will have more complex and lossless EQ built in. Oddly enough, I am putting the finishing touches to it right now. Having EQ that does not mess up sound quality or musicality is a really useful tool.
  6. Rob Watts

    Hugo TT 2 by Chord Electronics - The Official Thread

    No it certainly won't upset the transient reconstruction in the M scaler, but DSP EQ does have it's own set of compromises - and they are not 100% transparent. The problem to look out for is a loss in depth and detail resolution (note I haven't heard the Roon EQ so I can't comment upon how good...
  7. Rob Watts

    Chord Mojo 2 Thread ___ [product released January 31, 2022 -- starting on page 95 of thread]

    Seamlessly - DSD is filtered and converted to 705.6kHz PCM and then fed directly to the UHD DSP module. So EQ, crossfeed and volume all work identically.
  8. Rob Watts

    Chord Mojo 2 Thread ___ [product released January 31, 2022 -- starting on page 95 of thread]

    So you do have the possibility of resetting the EQ - from the handbook: 7.7 Restore factory settings Mojo 2 features a factory reset mode that restores the device to the original factory settings: DSP flat and Crossfeed off. To reset the device, press both the ‘+’ and ‘-‘ simultaneously from...
  9. Rob Watts

    Watts Up...?

    So the UHD DSP works at 705/768 kHz (from the output from WTA1 or the DSD filter). There is no WTA2.
  10. Rob Watts

    Watts Up...?

    Full parametric EQ wouldn't be a good idea - intellectually I don't like them, as using resonators to cancel other resonances is impossible to do properly. Moreover, the vast majority of Chord users would be incapable of using it properly. It's always better to solve the issue at source than...
  11. Rob Watts

    Watts Up...?

    Yes it has auto off when all digital inputs are removed after 10 minutes. But it remains in desktop mode so long as power is applied to the charging port. It's closer now, but Hugo 2 is still superior. No second order analogue noise shaper on Mojo 2 - it just needs the digital DC servo to...
  12. Rob Watts

    Chord Mojo 2 Thread ___ [product released January 31, 2022 -- starting on page 95 of thread]

    Just to clarify - no EQ is bit perfect, as that implies that nothing is being changed to the bits, so EQ wouldn't actually have any effect. What we are actually looking for is EQ that is perfectly transparent, or what I have called loss-less - so the EQ makes the required changes without...
  13. Rob Watts

    Watts Up...?

    ...to me these errors are very significant subjectively. And you only need to look at the Mojo 2 thread to see the very positive comments about the EQ compared to traditional 64b FP EQ. Additionally, a very important feature is the EQ running at 705/768 or 16FS with all the internal nodes being...
  14. Rob Watts

    Watts Up...?

    Actually, EQ is something I plan to investigate post digital power amps - if I can get some subjective benefit from it. I have designed bi-quad DSP's before.
  15. Rob Watts

    Watts Up...?

    I had a friend who was building a set of loudspeakers, and was using a ADC/DSP/DAC to solve EQ issues with the speaker. He was very happy with it - until I demoed a Hugo. With the Hugo in place it became very apparent that the losses in the DSP vastly outweighed the benefits; so he scrapped the...
  16. Rob Watts

    Chord Mojo 2 Thread ___ [product released January 31, 2022 -- starting on page 95 of thread]

    The DSP core handles EQ, cross-feed and finally the volume control, so it's always operational. But if EQ or cross-feed are all off, then the volume control receives bit perfect data from WTA1. So there is no processing at all when all the features are off. No it's still using the 15T. But the...
  17. Rob Watts

    Watts Up...?

    I have Dave powering small speakers direct - and these are 88 dB/1W and for the office they are perfect, plenty of volume. I get better soundstage depth than on my main system...
  18. Rob Watts

    Chord Mojo(1) DAC-amp ☆★►FAQ in 3rd post!◄★☆

    Yes EQ as currently handled is certainly not transparent; you need much greater accuracy than 64b floating point to make it completely transparent. This is why EQ does not sound as good as keeping it bit perfect - the problem isn't about transients but about noise floor modulation, and how small...
  19. Rob Watts

    Chord Mojo(1) DAC-amp ☆★►FAQ in 3rd post!◄★☆

        No definitely no EQ within Mojo, and no tricks to soften the sound. With the HD800 frequency response (20 to 20k) it is ruler flat.   The perception of warmth or brightness (yin and yang) is actually quite subtle and can swing on very small changes - very much so for when technically...
  20. Rob Watts

    CHORD ELECTRONICS DAVE

    I remember reading with great interest the Mojo 2 speculation thread. It was a very valuable resource. But out of the many hundreds of suggestions, no one saw the big change coming with Mojo 2 - the UHD DSP EQ....
  21. Rob Watts

    Popular Classical Music

    I maybe had a bad particular recording, but I just had this impression of DG sounding bright and lean. But these are nothing like that, so I guess my impression was wrong, or just a vinyl EQ issue.   Rob
  22. Rob Watts

    Watts Up...?

    Yes for sure a more complex EQ is very much technically possible for the new M scaler - considering the enormous amount of processing FPGA capacity I have available on the hardware. Watch this space!
  23. Rob Watts

    Chord Mojo 2 Thread ___ [product released January 31, 2022 -- starting on page 95 of thread]

    No it's not the same - I am not limited by transmitting to the DAC as you can't go above 0DBFS. With the UHD DSP I have built in 3 overload bits, so you can indeed go over 0DBFS. No setting will induce clipping within the UHD DSP. But - the last stage is the volume control, and you need to...
  24. Rob Watts

    Watts Up...?

    I don't think timing reconstruction is affected by EQ; so long as the sample rate is unchanged. But I could be wrong about that, as this is based upon theory not listening tests. You do get better accuracy if you process at higher sample rates for EQ at around 20 kHz for SR of 44.1 kHz. But...
  25. Rob Watts

    Chord Mojo 2 Thread ___ [product released January 31, 2022 -- starting on page 95 of thread]

    ...American adjective: peppy; comparative adjective: peppier; superlative adjective: peppiest lively and high-spirited. So Mojo 2 can certainly sound peppy; but it can also be rich, warm, soft and leisurely - it just depends upon your music, headphones and your Mojo 2 EQ settings.
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