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Topping DX7 DAC & Headphone Amplifier Review and Measurements

Discussion in 'Digital Audio Converters (DACs)' started by amirm, Jan 26, 2018.

  1. Purité Audio

    Purité Audio Major Contributor Industry Insider Barrowmaster

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    Have you compared both side by side in your room?
    Keith
     
  2. jtwrace

    jtwrace Active Member

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    I haven't but have heard all the JBL's in one room at Harman blind. I own the M2 and 708P's.
     
  3. Jimster480

    Jimster480 Active Member Patreon Donor

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    Just for reference here are the scans of the measurements that came with my DX7.

    [​IMG]
     
  4. Disruptor

    Disruptor New Member

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    could i use the dx7 as a headphone amp and as a preamp(volume control) for my active speakers?
    is there a mode that controls the volume on the xlr/rca outs?
     
  5. amirm

    amirm Founder/Admin CFO (Chief Fun Officer) Staff Member

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    Yes, and yes. :) See similar answer in the DX7s thread. There are three modes of operation which control whether the volume control is applied to the rear jacks or not.
     
  6. FunctionalDoc

    FunctionalDoc Member

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    Will this amp/Dac have problems with my HE-400i's at 32 ohms or my Aeon'r closed at 13 ohms?

    I know ill be fine ZMF Auteur teak at 300 ohms.

    Any experience using the amp section with the first 2 lower impedance headphones?
     
  7. dc655321

    dc655321 Member Patreon Donor

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    Innerfidelity measurements of those 'phones impedances shows them as flat.
    You should not have frequency response issues, but with the Aeon you will see half of the amp's voltage dropped internally across its 10 Ohm output impedance.
     
  8. amirm

    amirm Founder/Admin CFO (Chief Fun Officer) Staff Member

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    I use them that pairing all the time and have no issues.
     
  9. Martin

    Martin Member

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    After purchasing a D50 DAC for my PC setup to drive my KRK Rokit 6 G2 powered speakers I thought it would be nice to take advantage of the XLR balanced inputs and also picked up a DX7. (May help alleviate possible noise issues.) The headphone amp was a definite plus. I chose the DX7 over the DX7s based upon Amir's reviews; saving $85 was also nice.

    I'll decide which to keep once I have them in hand. I'll sell the other here.

    Any issue driving Sennheiser HD598s with the DX7?

    Martin
     
  10. sssn

    sssn Member

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    The HD598 is actually one of the most sensitive full-sized headphones when it comes to high output impedance due to its huge impedance spike at around 100Hz. It will sound a bit bassier from the DX7 and its 10 Ohm output impedance
     
  11. dc655321

    dc655321 Member Patreon Donor

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    Isn't that just 20*log(300/(300+10)) = -0.3 dB down at 100 Hz?
     
  12. Jimster480

    Jimster480 Active Member Patreon Donor

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    I use mine with my Aon closed all the time with no problems. I can't tell any difference vs my o2 and actually with certain high frequencies it sounds a tad cleaner but it could be volume mismatch.
     
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  13. FunctionalDoc

    FunctionalDoc Member

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    Well came today and they pulled the switch a roo on me an sent me the Dx7s with no remote instead of the DX7 with remote. I am going to ask they said me a remote since I though I was getting one. I guess not too bad since got the newer model for $339 delivered.

    Is the fast filter mode the best setup ?
     
  14. FunctionalDoc

    FunctionalDoc Member

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    What driver will work with Windows 7 Pro with DX7s? Don't see one for on Topping's site. Using the USB interface.

    Thanks
     
  15. amirm

    amirm Founder/Admin CFO (Chief Fun Officer) Staff Member

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    It is weird that they don't have a driver package for DX7s. There is one for D50 and I think it is compatible but check with them first.
     
  16. Jimster480

    Jimster480 Active Member Patreon Donor

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    Yes it works fine
     
  17. FunctionalDoc

    FunctionalDoc Member

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    Thanks, Now bumed didn't get the remote so I am requesting they send me remote when available. Thanks Jimster480 and Amir
     
  18. Jimster480

    Jimster480 Active Member Patreon Donor

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    I personally use the mini filter.
    Its a shame since the DX7 is technically better than the DX7S. But if you get a free remote with it then its comparable.
     
  19. Martin

    Martin Member

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    I just received my DX7s today. I ordered a DX7 on Ali Express and they sent me a DX7s. Paid $335.99 for it so while I'm not thrilled they sent me the wrong unit I'm happy I received a DX7s at that price.

    Time to try it out...

    Martin
     
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  20. Jimster480

    Jimster480 Active Member Patreon Donor

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    Shame that vendors are selling DX7's and then sending people DX7S
     
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