Bob,
I checked the Omni V manual. It, too, states 4 - 16 ohms. It's curious that
the 8 ohm Kenwood HS-5 headphones have the problem, while the 200 ohm Heil
headphones don't.
73,
Mark
> In review of the documentation for the Paragon and the Omni VI+ it does
> appear that the same signal that drives the speaker also drives the
phones.
> The manual states that "Headphones with an impedance of 4 to 16 ohms are
> recommended".
>
> I'd suspect that with the low Z phones a good transfer of power takes
place
> thus one would tend to "hear more" of the audio. With high Z phones the
> output stage acts as a voltage source. Depending on amplifier feedback
> characteristics a wide variation in frequency response can be expected.
>
> I have 2 or 3 sets of phones here that I've used from time to time. Some
> sound like crap when used on the Omni while others sound quite nice. My
> overall personal preference is a pair of Sony MDR-V900's. They are
> comfortable, I can wear them for hours without hearing fatigue and they
> sound great regardless of the program source, CW, SSB or AM in the case of
> the Paragon.
>
> 73
> Bob K4TAX
>
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