"Amanda Ripanykhazov" wrote in message
...
On Jul 29, 12:43 pm, (GregS) wrote:
In article
, Amanda
Ripanykhazov wrote:





On Jul 26, 4:11=A0am, "Arfa Daily" wrote:
"Amanda Ripanykhazov" wrote in message

...

On Jul 24, 7:21 am, bz wrote:
Amanda Ripanykhazov wrote:
Anyone know what this means? This hissing sound isnt constant, it
is
irregular: =A0It isnt related to the music or any movement of the
co=
ne
or any signal put through it, though it doesnt happen when no
sound =
is
put through the speaker.

Frankly it sounds more mechancial than electronic (as if there is
something behind there!) but as I say, it isnt related to
whatever i=
s
coming through the speaker though it does increase and decrease
with
adjustment of the volume control. =A0Andit is louder than most
signa=
ls
put through the woofer itself??

Is it indicative of some pot in the crossover needing cleaning or
is
there something else going on please? (I have seen reference to
peop=
le
improving the sound of AR11s by bypassing the tone controls in
the
speaker completely). =A0This speaker is quite elderly and I would
imagine that if it does use mechanical pots, they must be fairly
dir=
ty
by now

I know it is a silly question, but are you SURE that the hiss isn't
coming out of your amplifier?
(have you put a scope on the speaker lines or substituted either
speak=
er
or amp?)

=A0From your description, it isn't clear to me that you have
eliminate=
d the
'more obvious' possibility that your amplifier is putting out white
noise, perhaps intermittently varying in amplitude.- Hide quoted
text =
-

- Show quoted text -

Yeah, switching one speaker pretty much solved that one.

What, solved it as in proved that the amplifier *was* the cause, or
solve=
d
it as in it wasn't ?

Arfa- Hide quoted text -

- Show quoted text -

When I took out the speaker and put in another one, the hissing sound
stopped? When I put the speaker in again, the hissing sound started
again

I don't know if my question was ever answered. Where is the hissing
comming from ? Behind speakers means behind the box.

If you can't tell from listening, use a piece of tubing to get location.
You can get it down to less than an inch.

greg- Hide quoted text -

- Show quoted text -

I thought I made this point in the second posting by saying what I did
to try to trace it by pushing in the woofer (you cant push in a
tweeter that easily), the sound is coming from behind the woofer.

I'm thinking now that this is a windup. Looking at the the account that this
has come from.

dmanzaluni ?

Yes, I think that's maybe true ...

Arfa