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Soundcard/AMP Volume question

Discussion in 'Portable Headphone Amps' started by renji1337, Aug 7, 2013.
  1. renji1337
    I intend to hook up a schiit magni to a xonar dx which has a 100ohm 3.5mm ouput, i would go from 3.5mm to dual rca's into the amp
     
     
    Do i put windows volume at 100% like with digital to send a full signal? or do i have to lower windows volume
     
  2. PurpleAngel Contributor
    Usually it's best to set the volume to the highest possible, for feeding a analog audio signal into an amplifier.
    And use the Magni knob for volume control/adjustment.
     
  3. renji1337
    alright. another question, is it bad to plug my fiio e5 into my soundcard? for my ultrasone pro 550's...i did some RMAA test with a loop and it said i was always clipping unless xonar dx volume was at 60-75%.
     
     
    Actually i need clarification on how to set this up. I have a xonar dx that has only 3.5mm outs. a 100ohm output impedance. How should volume be set in windows? if i have it at 100% bass sounds horrid, it sounds distorted when plugged into the fiio e5 from my xonar dx.
     
     
    Kinda confused on what to do. i dont want to upgrade to a new amp if it will still do this.
     
  4. PurpleAngel Contributor
    Did you disable the motherboard's on-board audio? in the BIOS?
     
    Guess you will need to set the volume on the Xonar DX to 60% to 75%.
     
    You could try the "Xonar Unified Drivers", they are third party modified Xoner drivers.
    Might(?) help with the volume situation.
     
    I would assume the Schiit Magni would do a fairly bit better job of amplifying headphones, over the E5.
     
  5. renji1337
    The only thing i worry  about with the schiit magni is that my headphones are sensitivite and only 64ohms and yes onboard is disabled. and i have the modded drivers. i'm debating if i should ditch the xonar dx, maybe just get an STX and no magni but hmm. I dislike plugging right into my dx because the bass becomes horrible (100ohm output impedance)\
     
     
     
    Also how would it be using my yamaha rx v467 receivers headphone dac/amp or whatever it has on it?
     
  6. PurpleAngel Contributor
    Quote:
    I think (guess) the Xonar DX high volume bass problem might have to do with the Fiio E5, not the DX.
    The Schiit Magni's low output impedance, under 1-Ohm, should improve bass quality.
    The Yamaha might do a decent job of driving the 64-Ohm headphones, run an analog cable from the Xonar DX's line-out jack (green) to the RCA inputs on the RX-V467, see if you like the sound.
     
    If possible, have you tried running HDMI from your computer's graphics card, to the RX-V467?
     
  7. renji1337
    Quote:
    I run HDMI for to my receiver for my speakers currently yes.
     
  8. renji1337
    also, with the schiit magni would i be able to have my xonar dx volume at 100% unlike with the fiio e5 where i have it at 75%? Does the fiio e5 not like the full 2vrms from the xonar dx?
     
     
     
    1. FiiO E5 - windows volume at 100/individual speaker settings at 76 - AMP volume was adjusted according to the input volume and it was reporting distortion even before the test begun (and no, the FiiO was not plugged in)
    2. FiiO E5 - windows volume at 50/individual speaker settings at 76 - AMP volume was at MAX and the input volume was reported to be -7.0db
    3. FiiO E5 - windows volume at 70/individual speaker settings at 76 - AMP volume was close to MAX and the input volume was the recommended -1.0db
    4. Standard loopback (no amp), windows volume at 100/individual speaker settings at 76 (anything higher and the input volume clips)
     
     
     
    2hsb38y.jpg
     
  9. PurpleAngel Contributor
    Quote:
    I'm just making a guess(?) at what might be wrong, think my brain is maxed out on what might be wrong.
     
  10. PurpleAngel Contributor
    Quote:
    Have you tried plugging the headphones into the Yamaha?
    With the input select on the Yamaha to the HDMI.
    How does it sound?
     

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