[-L-]

I have a Siren Amplifier Unit it says use 100W speaker (105 Watts RMS
Max) im using a 20W Siren Speaker i dont know what ohms it is, the
speaker it says to use is 11 ohms will it damagae the siren amplifier
unit if its not 11 ohms, it sounds ok but its a bit loud for its usage
so i got a 100W L-Pad to control the volume, it worked but then started
smoking the speaker wires from the siren amplifier unit output 33VAC

[Eeyore]

-L- wrote:

I have a Siren Amplifier Unit it says use 100W speaker (105 Watts RMS
Max) im using a 20W Siren Speaker i dont know what ohms it is, the
speaker it says to use is 11 ohms will it damagae the siren amplifier
unit if its not 11 ohms, it sounds ok but its a bit loud for its usage
so i got a 100W L-Pad to control the volume, it worked but then started
smoking the speaker wires from the siren amplifier unit output 33VAC

Did you fail English at school btw ?

Graham

[Richard Crowley]

"-L-" wrote ...
I have a Siren Amplifier Unit it says use 100W speaker (105 Watts RMS
Max) im using a 20W Siren Speaker i dont know what ohms it is, the
speaker it says to use is 11 ohms will it damagae the siren amplifier
unit if its not 11 ohms, it sounds ok but its a bit loud for its usage
so i got a 100W L-Pad to control the volume, it worked but then
started
smoking the speaker wires from the siren amplifier unit output 33VAC

OK. Were you thinking that there is a question in there?

[Gareth Magennis]

"Eeyore" wrote in
message ...


-L- wrote:

I have a Siren Amplifier Unit it says use 100W speaker (105 Watts RMS
Max) im using a 20W Siren Speaker i dont know what ohms it is, the
speaker it says to use is 11 ohms will it damagae the siren amplifier
unit if its not 11 ohms, it sounds ok but its a bit loud for its usage
so i got a 100W L-Pad to control the volume, it worked but then started
smoking the speaker wires from the siren amplifier unit output 33VAC

Did you fail English at school btw ?


when you are texting on a mobile it is quicker to miss out all punctuation
and capitals unfortunately this means that anyone uinder the age of 19
cannot write properly they do tend to have very dexterous thumbs though




gareth

[Don Pearce]

On Fri, 11 Aug 2006 16:20:14 +0100, "Gareth Magennis"
wrote:


"Eeyore" wrote in
message ...


-L- wrote:

I have a Siren Amplifier Unit it says use 100W speaker (105 Watts RMS
Max) im using a 20W Siren Speaker i dont know what ohms it is, the
speaker it says to use is 11 ohms will it damagae the siren amplifier
unit if its not 11 ohms, it sounds ok but its a bit loud for its usage
so i got a 100W L-Pad to control the volume, it worked but then started
smoking the speaker wires from the siren amplifier unit output 33VAC

Did you fail English at school btw ?


when you are texting on a mobile it is quicker to miss out all punctuation
and capitals unfortunately this means that anyone uinder the age of 19
cannot write properly they do tend to have very dexterous thumbs though


Interesting; I wasn't aware you could text into newsgroups. Live and
learn.

A friend of mine is a twenty year old girl, as up to date as they
come, and her texts are paradigms of fine grammar, complete with
correct punctuation.

d

--
Pearce Consulting
http://www.pearce.uk.com

[Gareth Magennis]

when you are texting on a mobile it is quicker to miss out all punctuation
and capitals unfortunately this means that anyone uinder the age of 19
cannot write properly they do tend to have very dexterous thumbs though


Interesting; I wasn't aware you could text into newsgroups. Live and
learn.


no i meant that this is the way kids learn to write and then go on to do it
all the time you could use a mobile to access a newsgroup my phone has
internet access but its even slower and crashes more than my dial up used to
its total rubbish




A friend of mine is a twenty year old girl, as up to date as they
come, and her texts are paradigms of fine grammar, complete with
correct punctuation.


I do this as well.

[Don Pearce]

On Fri, 11 Aug 2006 16:41:09 +0100, "Gareth Magennis"
wrote:

no i meant that this is the way kids learn to write and then go on to do it
all the time you could use a mobile to access a newsgroup my phone has
internet access but its even slower and crashes more than my dial up used to
its total rubbish

i c wot u mean i thought u woz talkin about using a mobile 4 groups

d
--
Pearce Consulting
http://www.pearce.uk.com

[Gareth Magennis]

"Don Pearce" wrote in message
...
On Fri, 11 Aug 2006 16:41:09 +0100, "Gareth Magennis"
wrote:

no i meant that this is the way kids learn to write and then go on to do
it
all the time you could use a mobile to access a newsgroup my phone has
internet access but its even slower and crashes more than my dial up used
to
its total rubbish

i c wot u mean i thought u woz talkin about using a mobile 4 groups



tht wud rly b bolx init

[James Lehman]

What are you talking about? Do you have a device that produces a siren sound
into a speaker? If that is the case, then just get a high power resister and
put it in series with the speaker. This will solve two issues. First, it
will reduce the volume of the speaker and second, it will add to the
impedance of the speaker so that the whole system won't draw so much
current. You can figure out what value of resister to use by thinking of it
as a simple ratio. If the speaker is 8 ohms, then an 8 ohm resister will
absorb about as much of the voltage as the speaker; effectively cutting the
power to one quarter. Why a quarter and not a half? Because, an 8 ohm
resister will drop as much voltage as the speaker, but the whole circuit
will have twice the impedance, so only half of the current will flow through
both the resister and the speaker together. So, half the voltage times half
the current is one quarter of the power delivered to the speaker. Watts is
volts times amps.

An L-pad is a specially designed device that has two variable power
resisters in it. One resister goes in series with the speaker, much like
what is described above and the other resister is used in parallel with the
speaker and the first resister. This has the effect of dropping out the
added resistance so that the resulting impedance remains about 8 ohms. These
things are mainly designed for applications where a speaker must maintain a
constant impendence, like a mid or a tweeter in a system that has a passive
crossover. I don't think you need an L-Pad.

James. )


"-L-" wrote in message
oups.com...
I have a Siren Amplifier Unit it says use 100W speaker (105 Watts RMS
Max) im using a 20W Siren Speaker i dont know what ohms it is, the
speaker it says to use is 11 ohms will it damagae the siren amplifier
unit if its not 11 ohms, it sounds ok but its a bit loud for its usage
so i got a 100W L-Pad to control the volume, it worked but then started
smoking the speaker wires from the siren amplifier unit output 33VAC

[Laurence Payne]

On 11 Aug 2006 05:34:31 -0700, "-L-" wrote:

I have a Siren Amplifier Unit it says use 100W speaker (105 Watts RMS
Max) im using a 20W Siren Speaker i dont know what ohms it is, the
speaker it says to use is 11 ohms will it damagae the siren amplifier
unit if its not 11 ohms, it sounds ok but its a bit loud for its usage
so i got a 100W L-Pad to control the volume, it worked but then started
smoking the speaker wires from the siren amplifier unit output 33VAC

Doesn't the amplifier have a volume control? Turn it down!

[Karl Uppiano]

I don't think you need an L-Pad.

LOL, I don't think he *has* an L-Pad anymore!

[James Lehman]

well... depending on where the smoke came from... I'm not sure.



"Karl Uppiano" wrote in message
newsLaDg.90$Z1.57@trnddc03...
I don't think you need an L-Pad.

LOL, I don't think he *has* an L-Pad anymore!