On Thu, 12 Jun 2014 09:21:00 -0700 (PDT), Higgs Boson
Don't be too hard on the young lad.
I too read that sentence, but since you didn't go into detail, I pretty
much ignored it. So some of what I've written may be superfluous.
let me get this straight, however. When you use the same headphones and
the same size adapter insomething else with a 1/4" jack, they work?
And when you use a different set of headphones with a 1/4" plug in
stereo, they don't work?
If not those tests, what were the tests most similar to those that you
On Friday, June 13, 2014 3:54:28 PM UTC-7, None wrote:
Problem is not the TV. Problem is the stereo through which I get sound. Jack for headphones (which I have to use because of hearing) has deteriorated; only gets one channel. Looking for advice how to (a) fix jack or (b) use stereo sound some other way.
Got 2 pieces of advice how to "clean" the jack, in case that's the problem. One is delicate sandpaper -- but has downside. The other is liquid -- WD 40 and other suggestions.
Going to try liquid and see if that helps.
I'm not technie enough to implement some of the good suggestions by myself; need to find somebody competent & willing to help.
Bobby G. thanks for your civilized reply to previous poster. The Internet seems to bring out the best in some people and the worst in others.
Might be time to wind up the thread with thanks to all for suggestions. Some are beyond my capabilities. One of yours might be my best shot. You wrote:
"I might be equally tempted to buy a $25 headphone amplifier box with RCA
inputs and 1/4" stereo headphone outputs."
VERY IMPORTANT: Before proceeding, I need to know: Where is the headphone amplifier getting its sound, if the stereo jack cannot be used? Not from the POS TV speakers, one hopes!
I read several articles on-line on "how do headphone amplifiers work" but did not find the above basic info. Any info/referencs appreciated.
I though you said it was time to wind up the thread. And then, there
you go with more vapid ignorance.
If your TV sounds like shit, get a better TV. Of course, even that
simple solution might be beyond the comprehension of an ignoramus like
I've bought cheap integrated amps, like old radio shack units, which have a
headphone jack. Most amplifier units tap off the main speaker outs with
resistors to attenuate the level suitable for headphones. No power is taken
with input jacks, its just converted from a voltage source, to something
hat can supply required current. Want to check eBay ?
Some amplifier units have a separate headphone amplifier, but not as
I got one one of the simplest headphone DIY circuits on the Internet. I
designed it as a , well why not ? There are many who took it steps further
for improvement, but that defeated my desire for simplicity. My project
started about 1985, now hundreds of users built it.
Not from the POS TV speakers, one hopes!
The headphone amp will take its audio input from the same place the Harmon
gets its input from now, the TV. Your TV is *capable* of putting out very
high quality audio. The TV decodes the audio from the broadcast or cable TV
signal. Then it is routed both to the crappy speakers found in many slim
TVs AND to a set of jacks on the back called "AUDIO OUT" or "LINE OUT".
These jacks are what your friend (I assume) connected to your HK's "AUDIO
IN" jacks using RCA patch cords (usually red and white cables that look like
To use a headphone amp, you would disconnect the cables that go to the
"AUDIO IN" connectors on the HK and reconnect them to the "AUDIO IN" jacks
of the headphone amps. You are essentially removing the HK from the loop
and sending the high quality audio signal to the headphone box now.
(NB: this will make the HK unable to play audio from the TV as it will be
rerouted to the headphone box.)
If you need to have the HK still play the sound from the TV through the
speakers connected to the HK, you'll have to purchase some $5 "splitter
cables" that will allow the high quality audio signal from the TV to feed
both the HK "AUDIO IN" jacks and the headphone box's "AUDIO IN" jacks. Very
easy. Those splitters look like this:
I've been looking for something with diagrams to better describe what to do
without luck. I'll keep trying. It would be pretty simple to demonstrate
with some freehand sketches, but alas, Usenet was never very image friendly.
TV tuner audio ---------> HK ----------> Headphone jack --------->Headphones
TV tuner audio ---------> Built-in crappy speakers (not because of bad
signal, just bad speakers)
With a headphone amp the first line of the above paragraph will read:
TV tuner audio ---------> Headphone amp ----------> Headphone
The second line stays the same.
If you want to still route the audio through the HK's much better speakers
you would split the audo output from the TV to look like this:
TV tuner audio ---> splitter ---> HK ----------> speakers
> Headphone amp ----->
Headphone jack -------> Headphones
Again, line two stays the same and the TV can still play through its own
speakers. It may be very possible, if your TV supports it, to buy some
slightly better bookshelf speakers and power them directly from the TV.
That's what I've done and it sounds magnitudes better than the built in
ones. What was the TV make and model again? (-:
Show this to the person who hooked up the HK to the TV and they will know
instantly what I am describing.
Harmon Kardon's "Audio IN" will likely be female. TV's "Audio OUT" will
likely be female. Headphone amplifier inputs will likely be female. Three
male ends on the splitter cable will perfectly mate with three female inputs
on each of the units we're trying to join. Considering that virtually no
one's posted any illustrations of the technical details of what they're
discussing I don't think illustrating what a generic splitter (that can have
several configurations) looks like is worth of a nit-pick, but that's your
Now if the splitter cables aren't long enough that might complicate things,
but that would be exactly what we're NOT trying to do here, make things more
complicated than they already are. We're not even sure at this point if HB
needs to use the HK's speakers, but it's probably a good idea to make sure
she can if she wants to.
Unless the TV has two sets of line level audio outputs, then a splitter's
going to be required. I suspect the gender of splitter cables isn't going
to be a serious problem for the person that connected HB's TV to her stereo
in the first place and will likely be connecting the auxiliary headphone amp
for her, should she choose that route.
On Sun, 15 Jun 2014 19:54:47 -0400, "Robert Green"
Yeah, but unless they are all within 3 inches of each other, you'll need
two 3 or 6 foot cables to reach your destinations. And those cables
are much more common with two male ends.
I didn't mean to suggest you should have found a picture of the one I
was talking about. If you read my two lines again, I'm not criticizing
your picture, only saying one with 2 female ends will probably be more
But I can imagine the OP diligently looking for MMM connector, because
that's what the picture shows, and then having to hunt some more for
cables that are M-F, instead of F-F like most.
Should I drop this or should I say, It's not good to make them simpler
than they are, either. There is no "if". The splitter cable, or
Y-connector, in your picture is too short to reach anything but another
Sorry, I missed this - thought you closed the thread.
Didn't work for me. Doesn't matter because whatever you choose is first
dependent on how the TV connects to the Harmon Kardon. You have to either
photograph, videograph or describe the nature of the connection between the
two devices. That's the only way to be sure a headphone amplifier will
actually work. It's still just a "best guess/cheapest" option.
That doesn't mean we won't eventually need the URLs of headphone amps, just
that it's premature if your friend used some other means, like a vampire
speaker tap, to transfer audio out of the TV.
One at a time for the URLs, please. (-:
Sample of connection description: "The TV has two cables going to the
Harmon Kardon, one ending in red and one ending in white going into jacks
labeled [Audio OUT]." Or "The cables from the TV are small wires plugged
into the speaker output ports" or something like that so we can actually be
sure how your friend connected the TV to the stereo.
Without that interconnection diagram, photo, video or description, we're
still guessing exactly how your friend did it and what we need to do to work
around the (allegedly but most likely) bad jack.
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