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Sennheiser HD800 S Impressions Thread (read first post for summary)

Discussion in 'High-end Audio Forum' started by shabta, Jan 19, 2016.
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  1. martyn73
    Hi Donlin,

    I can't find the reference to the HDVA 600 converting single ended input to balanced. Before posting the message here I called Sennheiser and they suggested just using adaptors on the RCA cable as the input has to be manually selected at the front, but it's not clear if I can just plug in the HD800S into the balanced cable and hope it works.
     
  2. Evshrug
    Short answer:
    You CAN feed the HDVA 600 with an unbalanced RCA Signal, and Output via the HDVA’s XLR sockets.

    When Sennheiser says “Consistently symmetrical signal processing,” they are using other words to describe balanced amplification. You’ll notice that they don’t say “symmetrical processing” on their newer HDV 820 DAC/amp, but they do label their XLR and Pentaconn outputs as balanced. What the amps are doing is converting the signal to balanced right after the input, and then the amplification stage is all balanced. With any source (balanced or unbalanced), all the outputs are active at the same time.

    I have an HDV 820, which has it’s own DAC with balanced output hardwired to the balanced amplification stage, but sometimes I use the RCA input to connect different sources, like my DAP or the GSX 1000 when I want to game on PC with surround. So, my best current gaming setup looks like USB>GSX 1000> headphone out (3.5mm, volume close to max) > HDV 820 (RCA unbalanced input) > Pentaconn output (balanced) > HD 800.
     
  3. Evshrug
    Short answer:
    You CAN feed the HDVA 600 with an unbalanced RCA Signal, and Output via the HDVA’s XLR sockets.

    When Sennheiser says “Consistently symmetrical signal processing,” they are using other words to describe balanced amplification. You’ll notice that they don’t say “symmetrical processing” on their newer HDV 820 DAC/amp, but they do label their XLR and Pentaconn outputs as balanced. What the amps are doing is converting the signal to balanced right after the input, and then the amplification stage is all balanced. With any source (balanced or unbalanced), all the outputs are active at the same time.

    I have an HDV 820, which has it’s own DAC with balanced output hardwired to the balanced amplification stage, but sometimes I use the RCA input to connect different sources, like my DAP or the GSX 1000 when I want to game on PC with surround. So, my best current gaming setup looks like USB>GSX 1000> headphone out (3.5mm, volume close to max) > HDV 820 (RCA unbalanced input) > Pentaconn output (balanced) > HD 800.
     
  4. TYATYA
    Your case will be a not fully balance from source to end (final output). You get balance amping to RL channel of headphone which use xlr terminal.
    I mean it works, it output stereo normally, but benefit as not much as fully balance circuit.
     
    peter123 likes this.
  5. rutter
    Anyone using a Gustard H20 amplifier with the 800S?
     
  6. donlin
    Martyn,
    When I get home I’ll look for it and post it for you.
     
  7. kumar402
    Finally I bought 800s. Got a deal in eBay which I couldn't resist. Got a used pair for $850
    I have Schiit Valhalla 2 with 6922 gold pin. I am little worried about the dry treble is valhalla2 although JJ E88cc 6922 gold pin has reduced it significantly but it never went away completely.

    Any budget Amp to try with these. Have MOJO as DAC which makes my whole setup bright for my test.
     
    Last edited: Jul 13, 2018
  8. rgs9200m
    It's an interesting trend how we are seeing the introduction of warmer (more user-friendly?) versions of revealing headphones like the HD800 and Stax SR009 now...
     
  9. TYATYA
    Mojo as a dac but 800s sounds still bright? You think bcs of the tube, right?
    Mojo is not kind of bright but warm.
    Your 800s is used so confirm of ear pad if it ecess wear off.
    Buget amp may be Aune s6 or s16
     
  10. rutter
    I found the Mojo bright when I used it with Hifiman Edition X v2. It was harsh, to be specific. Didn't have such a problem with iFi Micro and Nano Black Label, Schiit Modi 2 and Modi Multibit. The Mojo is also not warm.
     
  11. donlin
    Sorry, it’s not in the manual but it’s in this video description by Axel Grell from Sennheiser. He starts talking about the amp at 8:10. Yes you can use rca plugs into the amp and xlr out of the amp to the headphones. No adapters are needed.
     
    Evshrug likes this.
  12. Nik74
    I have not heard the Mojo but the Hugo can also sound harsh in the treble through 800S. Taming it by using a valver amp is possible. A great album to check what s going on with the treble and upper mids is Drab Majesty's Demonstration which is unlistenable through the Hugo for example but through a valve amp and a good driver tube actually becomes an immersive experience. I m looking forward to hearing the 800S through the HDV820 at the London CanJam through a balanced connection to see what the fuss is all about though.
     
  13. Whazzzup
    Chord tt and gsx mk2 is nice combo. Nice full sound yet transparent. Deep and articulate.
     
  14. pietcux
    It works just fine. You can run 4 cans at the same time from this amp. 2 unbalanced and two balanced XLR. I feed it from my pc via the rca line out of my Xonar STX.
     
    Evshrug likes this.
  15. Evshrug
    This is accurate, officially backed by Sennheiser.
     
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