I'll add my displeasure as well with regard to Heil
headphones. I have 3 Heil headsets--the BM-10, the Heil
Pro-Set Plus, and the Elecraft Pro-Set (made by Heil). In
all cases the headphones suck! At least as far as output
goes. I don't know what Heil does to their headphones, but
it seems that output is not one of their concerns. Perhaps
there is some other aspect they are trying to emphasize. I
don't even try to use any of my Heil's with my K2, as it has
rather low audio output anyway. In fact, I have two K2's,
and both are extremely close, so I think I know it's not a
problem with the rig itself--other than the fact that K2's
don't have great audio output. A good pair of Sony earbuds
(which have relatively high sensitivity) provides a very
stark difference in output. Or, plug in a Kenwood headset,
and you will notice a similar improvement. I actually
intended to ask the Heil folks at Dayton about this, but
everytime I went by their booth they were very busy, and I
didn't want to hang around just to complain about their
product. Bob Heil seems like a nice enough fellow, and I
could probably just send him an email or something (he's
responded personally to questions I've had in the past), but
I really wanted to ask in person so as hopefully not to
convey that I'm just some 'whiner". Maybe someone else
knows the answer?
Dave W7AQK
----- Original Message -----
From: "Brian Alsop" <[EMAIL PROTECTED]>
To: "David Cutter" <[EMAIL PROTECTED]>;
<[email protected]>
Sent: Monday, July 14, 2008 4:37 AM
Subject: Re: [Elecraft] K3 audio output v headphone
sensitiviy
David,
Glad somebody else is experiencing this. I tried
plugging in a set of Heil BM-10 earphones into the K3.
It was if the leads were shorted.
I sent them back to Heil who declared them within spec.
I tried an el cheapo computer 32 ohm headset with only
slight improvement.
Odd thing is the el cheapo headset had plenty of volume
when plugged into the computer for it's intended use.
In general the earphones with the larger headphone size
produce more volume. I finally ended up with a plantronix
headphone set which has adequate, but not stellar volume.
In all fairness the Heil BM-10 didn't work too well on an
IC-706 either.
Somewhere there is now a disconnect between headphone
manufacturers and rig manufacturers. I suppose there
may be some regulations or guidelines that may be getting
in the way too. However, for many of us, it's too late
to protect against somewhat diminished hearing. We need
something which puts out the volume needed..
Note: My recollection on using a Heil BM-10 perhaps 10
years ago was that it was just fine in the volume area.
Two factors come to mind:
1) It was used with an older radio that had lots of audio
output
2) I'm now 10 years older.
Maybe it is both of the above.
Perhaps Elecraft can somehow provide more earphone
volume. The speaker output will knock your socks off.
73 de Brian/K3KO
David Cutter wrote:
It has recently astonished me just how deaf some
headphones are. In my work I was given aircraft
headphones that needed 2W to get the same audio output as
our own make that needed about 20mW. That quick test
with the spl meter needs to be repeated on a calibrated
jig and I'll be taking my ham phones in to get them
checked. I'll post the results here.
David
G3UNA
----- Original Message ----- From: "Jim Brown"
<[EMAIL PROTECTED]>
To: "Elecraft Reflector" <[email protected]>
Sent: Monday, July 14, 2008 8:01 AM
Subject: Re: Re: [Elecraft] K3 #1037 in IARU contest
On Sun, 13 Jul 2008 16:49:25 -0700, Fred Jensen wrote:
Slightly different subject, I wouldn't mind at all if
the K3 had more
audio available in the headfones from both the monitor
and sidetone.
Fred,
There's an AF Gain setting in the Config Menu. Check
that it's set to
"HI." If you need more, maybe I can help you find
headphones with higher
voltage sensitivity.
Jim
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