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Continuous airy hiss on headphones

Discussion in 'Axe-Fx III Discussion' started by shemihazazel, Jun 30, 2018.

  1. Rex

    Rex
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    Legend!

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    Ahah! So that’s the culprit. Yes, there’s plenty of output on the Axe III’s headphone jack. Combined with the Mo-Fi’s built-in amp, it could blow your head off. :eek:
     
  2. FractalAudio

    FractalAudio
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    Fractal Audio Systems Moderator

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    The amp on the Mo-Fi's is designed for use with consumer stuff like iPhones and such with really low output drive strength. The headphone amp in the III is a pro-quality amp designed to drive low-impedance pro headphones. It's not designed for use with things like headphones with built-in amps and IEM amps.
     
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  3. bradlake

    bradlake
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    Axe-Master

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    My 300 ohm Sennheiser 800 HDcans have NEVER sounded better than thru the III’s headphone jack, and Ihave high end headphone amps.....
     
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  4. shemihazazel

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    Thank the gods I can simply turn it off on the mo-fis. 'Cause I really love those cans.
     
  5. FractalAudio

    FractalAudio
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    From Blue's website:
    "Turn the [integrated] amp off while you’re plugged into studio gear. Turn the amp on when you’re mixing tracks on your laptop."
     
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  6. BaronVonGrim

    BaronVonGrim
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    Inspired

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    I'm researching for a first pair of cans.
    I am just starting to vaguely understand it. when I look at a pair.. and see the price... I still need a individual amp to power that. Unless they have a built in amp.
    But the Axe 3 has a built in headphone amp...or output circuit that powers it... I'm not worried about which one I just wonder I don't need to buy headphone amp if I pick up a set of cans that don't have a built in amp?
    Can it handle 600 ohm? If not, what can it handle?
     
  7. shemihazazel

    shemihazazel
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    You'll want cans with lower impedance. 600 ohm is very high. For example, my backup headphones are AKG k271s, 55 ohm.
     
  8. BaronVonGrim

    BaronVonGrim
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    Inspired

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    First impression is bigger is better.. and 600 ohm seemed like a nice one time lifetime kind of purchase. Decided that I didn't need to take it that far, an unusual move. Seen in a forum comment 250 ohm works on the 3 , and went with forum opion with a reasonable price range.
     
  9. mcmurray

    mcmurray
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    Inspired

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    It's high, yes but it'll most probably be ok.
     

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