You are confusing DC resistance with impedance. The impedance of a transducer
(loudspeaker, microphone, headphones) is a combination of the dc resistance
of the voice coil, the motional impedances, and a resistance that corresponds
to the power converted to sound. Thus, those headphones that look l
My Sony MDR 7506's have a DC resistance of 72 ohms per side. Since the
phones are in parallel, the rig will see about 36 ohms. I am not sure how
that relates to impedance but it seems in the ballpark. Heating and
reactance would increase it some but I don't know by how much. They are
comfortabl
On Mon, 14 Jun 2004 9:20:37 -0400, [EMAIL PROTECTED] wrote:
>When we used a second op for logging and "Y'ed" the headphones it was
>definitely at full throttle.
The audio system in a K2 is entirely adequate for serious contesting.
I suspect you have made a poor choice of headphones. I own sev
On Mon, 2004-06-14 at 14:20, [EMAIL PROTECTED] wrote:
> The main complaint from all operators was audio power. There are 2
> stations in the truck, and it is noisy with all of the amplifier fans
> and other local qrm. The volume knob on the k2 was never set below 3/4
> to full for the entire week
Ed:
I used two K2's at W3CCX over the weekend. I found one of them to be
usable under the multimulti conditions. That was not mine, but one built
by John Sortor, KB3XG. He had mounted an auxiliary audio amplifier
in the lid and it made a world of difference.
We did over a million points for th
Ed and all,
Audio - I do use an external audio amplifier with the K2.
CW PTT input - I am in the final stages of testing a mod to provide PTT in
CW mode. It involves removing RF Board R1 and R2 and inserting a logic AND
at that point.
The only inconvience (which is not likely to be resolved soo
All,
I am just returning from a mountaintop weekend running the June QSO party in a
multi-op environment. The k2 I supplied for the 222 station worked great, but
there were several complaints, and I will be attempting to fix these before
it's next excursion into this environment.
The main com
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