Speaker line characteristics

K

klem kedidelhopper

Guest
This question was posed on another group but wasn't really answered.
There is a PA installation with several zones . One zone is a bell
tower which has a separate speaker in it. The speaker is inaccessible.
The DC resistance of that line is 11 ohms. How can an installer
determine if this is a 70, or 25 volt speaker and which tap it may be
set at? Or perhaps it's just an 8 ohm speaker with 3 ohms of cable
resistance added? Is there n easy way to do this without an impedance
bridge? Thanks, Lenny
 
klem kedidelhopper wrote:
This question was posed on another group but wasn't really answered.
There is a PA installation with several zones . One zone is a bell
tower which has a separate speaker in it. The speaker is inaccessible.
The DC resistance of that line is 11 ohms. How can an installer
determine if this is a 70, or 25 volt speaker and which tap it may be
set at? Or perhaps it's just an 8 ohm speaker with 3 ohms of cable
resistance added? Is there n easy way to do this without an impedance
bridge? Thanks, Lenny
Click to expand...

How are the other zones wired?
 
"klem kedidelhopper"

This question was posed on another group but wasn't really answered.
There is a PA installation with several zones . One zone is a bell
tower which has a separate speaker in it. The speaker is inaccessible.
The DC resistance of that line is 11 ohms. How can an installer
determine if this is a 70, or 25 volt speaker and which tap it may be
set at? Or perhaps it's just an 8 ohm speaker with 3 ohms of cable
resistance added? Is there n easy way to do this without an impedance
bridge?
Click to expand...

** One only has to add say a 100 ohm resistor in series with the speaker -
if the level drops dramatically it is 8 ohms.

An impedance meter is invaluable when troubleshooting line voltage PA
systems - but even that will not tell you if a line matching tranny is 70 V
..


..... Phil
 
Phil Allison wrote:
"klem kedidelhopper"

This question was posed on another group but wasn't really answered.
There is a PA installation with several zones . One zone is a bell
tower which has a separate speaker in it. The speaker is inaccessible.
The DC resistance of that line is 11 ohms. How can an installer
determine if this is a 70, or 25 volt speaker and which tap it may be
set at? Or perhaps it's just an 8 ohm speaker with 3 ohms of cable
resistance added? Is there n easy way to do this without an impedance
bridge?

** One only has to add say a 100 ohm resistor in series with the speaker -
if the level drops dramatically it is 8 ohms.

An impedance meter is invaluable when troubleshooting line voltage PA
systems - but even that will not tell you if a line matching tranny is 70 V
Click to expand...

Sigh.
 
"Michael A. Terrell"
Phil Allison wrote:
"klem kedidelhopper"

This question was posed on another group but wasn't really answered.
There is a PA installation with several zones . One zone is a bell
tower which has a separate speaker in it. The speaker is inaccessible.
The DC resistance of that line is 11 ohms. How can an installer
determine if this is a 70, or 25 volt speaker and which tap it may be
set at? Or perhaps it's just an 8 ohm speaker with 3 ohms of cable
resistance added? Is there n easy way to do this without an impedance
bridge?

** One only has to add say a 100 ohm resistor in series with the
speaker -
if the level drops dramatically it is 8 ohms.

An impedance meter is invaluable when troubleshooting line voltage PA
systems - but even that will not tell you if a line matching tranny is 70
V


Sigh.
Click to expand...
** ROTFL !!

The Terrell fuckwit retard has MISREAD my post - as always.

The "you" in my final sentence above refers to OP's problem - ie testing
just the speaker line with no ability to inspect the tranny or speaker.


..... Phil
 
Phil Allison wrote:
"Michael A. Terrell"
? Phil Allison wrote:
?? "klem kedidelhopper"
??
?? ? This question was posed on another group but wasn't really answered.
?? ? There is a PA installation with several zones . One zone is a bell
?? ? tower which has a separate speaker in it. The speaker is inaccessible.
?? ? The DC resistance of that line is 11 ohms. How can an installer
?? ? determine if this is a 70, or 25 volt speaker and which tap it may be
?? ? set at? Or perhaps it's just an 8 ohm speaker with 3 ohms of cable
?? ? resistance added? Is there n easy way to do this without an impedance
?? ? bridge?
??
?? ** One only has to add say a 100 ohm resistor in series with the
?? speaker -
?? if the level drops dramatically it is 8 ohms.
??
?? An impedance meter is invaluable when troubleshooting line voltage PA
?? systems - but even that will not tell you if a line matching tranny is 70
?? V
?
?
? Sigh.

** ROTFL !!

The Terrell fuckwit retard has MISREAD my post - as always.

The "you" in my final sentence above refers to OP's problem - ie testing
just the speaker line with no ability to inspect the tranny or speaker.
Click to expand...

Keep backpedaling, loser. Your inability to think is well known.
 
"Michael A. Terrell Autistic Retard "

( snip pile of utter SHIT)


** Fuck off to hell - you rabid, lunatic, fuckwit TROLL
 
Phil Allison wrote:
"Michael A. Terrell Autistic Retard "

( snip pile of utter SHIT)

** Fuck off to hell - you rabid, lunatic, fuckwit TROLL
Click to expand...

I keep telling you, I'm not into guys.
 
"Michael A. Terrell Autistic Retard "
** Fuck off to hell - you rabid, lunatic, fuckwit TROLL


I keep telling you, I'm not into guys.
Click to expand...

** Only quadrupeds - with big ears.
 
Phil Allison wrote:
"Michael A. Terrell Autistic Retard "

** Fuck off to hell - you rabid, lunatic, fuckwit TROLL


I keep telling you, I'm not into guys.

** Only quadrupeds - with big ears.
Click to expand...

No thanks. Keep your perverted fantasies to yourself.
 
klem kedidelhopper wrote:
This question was posed on another group but wasn't really answered.
There is a PA installation with several zones . One zone is a bell
tower which has a separate speaker in it. The speaker is inaccessible.
The DC resistance of that line is 11 ohms. How can an installer
determine if this is a 70, or 25 volt speaker and which tap it may be
set at? Or perhaps it's just an 8 ohm speaker with 3 ohms of cable
resistance added? Is there n easy way to do this without an impedance
bridge? Thanks, Lenny
Click to expand...


Here is the schematic for an old TOA analog impedance meter. It
should be fairly easy to build one from what's laying around the shop.
the only part I haven't identified is the meter movement, but I'll put
one together and see what's needed. Cheap movements are all over Ebay
in the $5 to $10 range

http://www.eserviceinfo.com/download.php?fileid=35055
 
klem kedidelhopper kom med fřlgende:
   Here is the schematic for an old TOA analog impedance meter. It
should be fairly easy to build one from what's laying around the shop.
the only part I haven't identified is the meter movement, but I'll put
one together and see what's needed.  Cheap movements are all over Ebay
in the $5 to $10 range

http://www.eserviceinfo.com/download.php?fileid=35055

Michael, would it be possible to please send me a PDF of that
schematic? I can't get that link you posted to work. Thanks, Lenny
Click to expand...
Did you try the
Download >> To download the file, please, click here ! << Download
link?

Worked fine for me.

Leif

--
Husk křrelys bagpĺ, hvis din bilfabrikant har taget den idiotiske
beslutning at undlade det.
 
On Dec 24, 11:40 pm, "Michael A. Terrell" <mike.terr...@earthlink.net>
wrote:
klem kedidelhopper wrote:

This question was posed on another group but wasn't really answered.
There is a PA installation with several zones . One zone is a bell
tower which has a separate speaker in it. The speaker is inaccessible.
The DC resistance of that line is 11 ohms. How can an installer
determine if this is a 70, or 25 volt speaker and which tap it may be
set at? Or perhaps it's just an 8 ohm speaker with 3 ohms of cable
resistance added? Is there n easy way to do this without an impedance
bridge? Thanks, Lenny

   Here is the schematic for an old TOA analog impedance meter. It
should be fairly easy to build one from what's laying around the shop.
the only part I haven't identified is the meter movement, but I'll put
one together and see what's needed.  Cheap movements are all over Ebay
in the $5 to $10 range

http://www.eserviceinfo.com/download.php?fileid=35055
Click to expand...
Michael, would it be possible to please send me a PDF of that
schematic? I can't get that link you posted to work. Thanks, Lenny
 
On Dec 24, 9:40 pm, "Michael A. Terrell" <mike.terr...@earthlink.net>
wrote:
...snip...
   Here is the schematic for an old TOA analog impedance meter. It
should be fairly easy to build one from what's laying around the shop.
the only part I haven't identified is the meter movement, but I'll put
one together and see what's needed.  Cheap movements are all over Ebay
in the $5 to $10 range

http://www.eserviceinfo.com/download.php?fileid=35055
Click to expand...
I can't get the download to work, either.

Any clicking on active areas takes me back to the same screen, but
never a download, or potential for download.
 
Robert Macy forklarede:
On Dec 24, 9:40 pm, "Michael A. Terrell" <mike.terr...@earthlink.net
wrote:
...snip...
   Here is the schematic for an old TOA analog impedance meter. It
should be fairly easy to build one from what's laying around the shop.
the only part I haven't identified is the meter movement, but I'll put
one together and see what's needed.  Cheap movements are all over Ebay
in the $5 to $10 range

http://www.eserviceinfo.com/download.php?fileid=35055

I can't get the download to work, either.

Any clicking on active areas takes me back to the same screen, but
never a download, or potential for download.
Click to expand...
Are you using some paranoid browser settings, like rejecting cookies,
hiding referer or disabled javascript?

The site seems to have measures to keep leeches away, perhaps you look
like that ;-)

--
Husk křrelys bagpĺ, hvis din bilfabrikant har taget den idiotiske
beslutning at undlade det.
 
Robert Macy wrote:
On Dec 24, 9:40 pm, "Michael A. Terrell" <mike.terr...@earthlink.net
wrote:
...snip...
Here is the schematic for an old TOA analog impedance meter. It
should be fairly easy to build one from what's laying around the shop.
the only part I haven't identified is the meter movement, but I'll put
one together and see what's needed. Cheap movements are all over Ebay
in the $5 to $10 range

http://www.eserviceinfo.com/download.php?fileid=35055

I can't get the download to work, either.

Any clicking on active areas takes me back to the same screen, but
never a download, or potential for download.
Click to expand...

Did you click where it says: "To download the file, please, click
here !" between the two that say "Download"? It is in the center of the
sixth line from the bottom of the white box.


This is what the line looks like:

Download >> To download the file, please, click here ! << Download
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
On Dec 27, 11:31 am, "Michael A. Terrell" <mike.terr...@earthlink.net>
wrote:
Robert Macy wrote:

On Dec 24, 9:40 pm, "Michael A. Terrell" <mike.terr...@earthlink.net
wrote:
...snip...
   Here is the schematic for an old TOA analog impedance meter. It
should be fairly easy to build one from what's laying around the shop..
the only part I haven't identified is the meter movement, but I'll put
one together and see what's needed.  Cheap movements are all over Ebay
in the $5 to $10 range

http://www.eserviceinfo.com/download.php?fileid=35055

I can't get the download to work, either.

Any clicking on active areas takes me back to the same screen, but
never a download, or potential for download.

   Did you click where it says: "To download the file, please, click
here !" between the two that say "Download"?  It is in the center of the
sixth line from the bottom of the white box.

   This is what the line looks like:

Download >> To download the file, please, click here ! << Download
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Click to expand...
the web page
<http://www.eserviceinfo.com/download.php?fileid=35055>
shows your quoted line in my browser, but when I hold the cursor over
the "To download ..." section this shows:
<http://www.eserviceinfo.com/download.php?fileid=35055>
which looked the same so I assumed something was wrong ....without
trying. I've had these 'circular' links in several commercial webpages
which were a complete waste of time, so again I didn't even try.

but will now:
and YES it comes up with the 'save' window ?!

Guess the lesson is to try, NEVER assume.

Thanks.
 
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