Speaker overload (tweeter) protection using bulbs (repost)

[Eeyore]

Jamie wrote:

liquidator wrote:

Dont' bother replying, but your juvenile need to will make you do it anyway.

Thank you very much, and don't worry, my kill file is full of idiots

You should add yourself !

 

[Eeyore]

liquidator wrote:

"Eeyore" wrote in message
liquidator wrote:
"Dave Plowman (News)" wrote

Suggest you try driving a DC coupled amp into heavy clipping and see
the results to speakers which can nominally handle its output.

You would have flunked electronics 101.

Clipping and DC are not the same thing. That argument was selltled years
ago- only those with minimal knowledge advance it today.

In the early days of DC coupled outputs, some amps still had a degree of
internal AC coupling or bypassing in the drive circuitry.

They could indeed 'drift' DC under prolonged overdrive.

You are spot on with that condition...but I assumed that we would be talking
about "current" amps.

I wouldn't be using any of those old amps on the job.

Me neither. I wonder if that was part of the reason for the Flame Linear
monicker, or was it just inadequate heatsinking ?

Graham

 

[Eeyore]

liquidator wrote:

"Eeyore" wrote
George's Pro Sound Company wrote:
"William Sommerwerck" wrote

What gets you up so early on a Sunday? (I'm on the west coast,
and have been up since 2AM.)

went out had a couple of dogfish 90 minutes and that set me down
early(8pm) some days your just not tired at 4 am

As in...

http://www.dogfish.com/brewings/Seasonal_Beers/Punkin_Ale/3/index.htm

Same brewery but this IPA

http://www.dogfish.com/brewings/Year_Round_Beers/90_Minute_IPA/11/index.htm

Are you familiar with the origin of the name 'IPA' ?

Curious- India Pale? No I'd be interested in where the term came from...I
knew the gin and tonic came from having to drink quinine against malaria.

Indeed. India Pale Ale. It was indeed exported from Britain to India in the
days of the Raj and to be able to wiststand the long sea voyages had to contain
a fair percentage of alcohol to prevent it going off. The length of journey
also allowed it to mature nicely.

Graham

 

[liquidator]

"Eeyore" <rabbitsfriendsandrelations@hotmail.com> wrote in message
news:4920C23C.1F4C1578@hotmail.com...

liquidator wrote:

"Eeyore" wrote in message
liquidator wrote:
"Dave Plowman (News)" wrote

Suggest you try driving a DC coupled amp into heavy clipping and
see
the results to speakers which can nominally handle its output.

You would have flunked electronics 101.

Clipping and DC are not the same thing. That argument was selltled
years
ago- only those with minimal knowledge advance it today.

In the early days of DC coupled outputs, some amps still had a degree
of
internal AC coupling or bypassing in the drive circuitry.

They could indeed 'drift' DC under prolonged overdrive.

You are spot on with that condition...but I assumed that we would be
talking
about "current" amps.

I wouldn't be using any of those old amps on the job.

Me neither. I wonder if that was part of the reason for the Flame Linear
monicker, or was it just inadequate heatsinking ?

Graham

I think you could check "all of the above"

It was designed to be light and cheap...remember, it was a home stereo
amp...it just found favor in pro use, it was never meant to be pro...

 

[liquidator]

"Eeyore" <rabbitsfriendsandrelations@hotmail.com> wrote in message
news:4920C358.8F9E1298@hotmail.com...

liquidator wrote:

"Eeyore" wrote
George's Pro Sound Company wrote:
"William Sommerwerck" wrote

What gets you up so early on a Sunday? (I'm on the west coast,
and have been up since 2AM.)

went out had a couple of dogfish 90 minutes and that set me down
early(8pm) some days your just not tired at 4 am

As in...


http://www.dogfish.com/brewings/Seasonal_Beers/Punkin_Ale/3/index.htm

Same brewery but this IPA


http://www.dogfish.com/brewings/Year_Round_Beers/90_Minute_IPA/11/index.htm

Are you familiar with the origin of the name 'IPA' ?

Curious- India Pale? No I'd be interested in where the term came
from...I
knew the gin and tonic came from having to drink quinine against
malaria.

Indeed. India Pale Ale. It was indeed exported from Britain to India in
the
days of the Raj and to be able to wiststand the long sea voyages had to
contain
a fair percentage of alcohol to prevent it going off. The length of
journey
also allowed it to mature nicely.

Perhaps Jamie should go on a long journey...

 

[Jamie]

Eeyore wrote:

Jamie wrote:


liquidator wrote:

Dont' bother replying, but your juvenile need to will make you do it anyway.


Thank you very much, and don't worry, my kill file is full of idiots


You should add yourself !

Oh, that's so intellectual of you.

Is that the best you got ?

http://webpages.charter.net/jamie_5"

 

[Jamie]

Eeyore wrote:

Jamie wrote:


Eeyore wrote:

liquidator wrote:

"Jamie" wrote in message


Btw, distortion due to amplifier saturation,

What is this "amplifier saturation" you talk of ? Please use accepted
terminology.


even though the amp is
far belong the rating of the speaker can and does over heat the speaker
coil and thus, can terminate the life of a speaker even rated higher
than said amp.

Ahnothetr person with minimal knowledge.

This is my experience of Jamie too. He reckons he's some hot shot but constantly
uses the wrong words to describe things for example. His knowledge is also very
dated.

Graham, you play with toys.. you work with toys.. and as usual,
all you have left is finger pointing because you've lost what ever
you had. That is, if you had anything of value to start with other
than what you find off the backs of others.

Your knowledge of electronics is most likely gained from destroying
an untold amount of components and still to this day, you have to
scratch that bold head of yours and wonder what you did with that last
puff of smoke you allowed to escape.

You boast that your an elite in audio design, from what I've seen you
point out. A mear amateur, expert you are not!.


Answer the bloody question IDIOT !

What is a "saturated amplifier" ? You can't even use the right words.

Graham

I proved my point..

You smuck. It's time to relinquish the community
PC and let the next guest in that ward, have their turn.

You may want to look in the hall before sneaking back
to your room. I'm sure they are looking for you.

http://webpages.charter.net/jamie_5"

 

[George's Pro Sound Compan]

"Jamie" <jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote in message
news:IV4Uk.5147$ev2.4454@newsfe12.iad...

Eeyore wrote:


Jamie wrote:


Eeyore wrote:

liquidator wrote:

"Jamie" wrote in message


Btw, distortion due to amplifier saturation,

What is this "amplifier saturation" you talk of ? Please use accepted
terminology.


even though the amp is
far belong the rating of the speaker can and does over heat the
speaker
coil and thus, can terminate the life of a speaker even rated higher
than said amp.

Ahnothetr person with minimal knowledge.

This is my experience of Jamie too. He reckons he's some hot shot but
constantly
uses the wrong words to describe things for example. His knowledge is
also very
dated.

Graham, you play with toys.. you work with toys.. and as usual,
all you have left is finger pointing because you've lost what ever
you had. That is, if you had anything of value to start with other
than what you find off the backs of others.

Your knowledge of electronics is most likely gained from destroying
an untold amount of components and still to this day, you have to
scratch that bold head of yours and wonder what you did with that last
puff of smoke you allowed to escape.

You boast that your an elite in audio design, from what I've seen you
point out. A mear amateur, expert you are not!.


Answer the bloody question IDIOT !

What is a "saturated amplifier" ? You can't even use the right words.

Graham

I proved my point..

You smuck. It's time to relinquish the community
PC and let the next guest in that ward, have their turn.

You may want to look in the hall before sneaking back
to your room. I'm sure they are looking for you.

http://webpages.charter.net/jamie_5"

I got to say Jamie compared to you Eyesore is a Rhodes scholar, I havn't
seen anything but pure rubbish from you

and before you go off again like the noon bell at 11:17
there isno love lost between eyesore and myself
George
>

 

[Phil Allison]

"George's Pro Sound Company"
"Jamie"

I got to say Jamie, compared to you Eyesore is a Rhodes scholar, I havn't
seen anything but pure rubbish from you

** "Jamie" is actually one Maynard A. Philbrook.

Maynard is a another fuckwit radio ham, call sign: KA1LPA

Maynard makes his living as a code scribbler, he is no electronics tech.

Maynard is mentally defective as hell.



...... Phil

 

[Eeyore]

liquidator wrote:

"Eeyore" wrote
liquidator wrote:
"Eeyore" wrote in message
liquidator wrote:
"Dave Plowman (News)" wrote

Suggest you try driving a DC coupled amp into heavy clipping and
? see the results to speakers which can nominally handle its output.

You would have flunked electronics 101.

Clipping and DC are not the same thing. That argument was selltled
years ago- only those with minimal knowledge advance it today.

In the early days of DC coupled outputs, some amps still had a degree
of internal AC coupling or bypassing in the drive circuitry.

They could indeed 'drift' DC under prolonged overdrive.

I remember know. You'd get a charge pump effect.

You are spot on with that condition...but I assumed that we would be
talking about "current" amps.

I wouldn't be using any of those old amps on the job.

Me neither. I wonder if that was part of the reason for the Flame Linear
monicker, or was it just inadequate heatsinking ?

I think you could check "all of the above"

It was designed to be light and cheap...remember, it was a home stereo
amp...it just found favor in pro use, it was never meant to be pro...

Still saw enough of them in amp racks. Usually with a pair of Boxer fans
blowing on the heatsinks.

Studiomaster's original 800B was a modified, increased power and ruggedised
version of the PL700 with the Boxer fans built in ! And before George jumps
down my throat for copying it, it was well before my time there.

Graham

 

[Eeyore]

liquidator wrote:

"Eeyore" <rabbitsfriendsandrelations@hotmail.com> wrote in message

Indeed. India Pale Ale. It was indeed exported from Britain to India in
the days of the Raj and to be able to wiststand the long sea voyages had to

contain a fair percentage of alcohol to prevent it going off. The length of

journey also allowed it to mature nicely.

Perhaps Jamie should go on a long journey...

Good advice !

Graham

 

[Eeyore]

Jamie wrote:

Eeyore wrote:
Jamie wrote:
Eeyore wrote:
liquidator wrote:
"Jamie" wrote in message

Btw, distortion due to amplifier saturation,

What is this "amplifier saturation" you talk of ? Please use accepted
terminology.

even though the amp is
far belong the rating of the speaker can and does over heat the speaker
coil and thus, can terminate the life of a speaker even rated higher
than said amp.

Ahnothetr person with minimal knowledge.

This is my experience of Jamie too. He reckons he's some hot shot but constantly
uses the wrong words to describe things for example. His knowledge is also very
dated.

Graham, you play with toys.. you work with toys.. and as usual,
all you have left is finger pointing because you've lost what ever
you had. That is, if you had anything of value to start with other
than what you find off the backs of others.

Your knowledge of electronics is most likely gained from destroying
an untold amount of components and still to this day, you have to
scratch that bold head of yours and wonder what you did with that last
puff of smoke you allowed to escape.

You boast that your an elite in audio design, from what I've seen you
point out. A mear amateur, expert you are not!.

Answer the bloody question IDIOT !

What is a "saturated amplifier" ? You can't even use the right words.

Graham

I proved my point..

You have proved NOTHING and STILL failed to answer the question posed of you several
times now and not once addressed..

Graham

 

[Eeyore]

George's Pro Sound Company wrote:

I got to say Jamie compared to you Eyesore is a Rhodes scholar, I havn't
seen anything but pure rubbish from you

and before you go off again like the noon bell at 11:17
there isno love lost between eyesore and myself
George

Thank you for the endorsement George. I recall we got on fine when I first
joined this group. For fear of provoking any further discord I'll avoid
mentioning the name of a certain person who helped upset that.

I was serious about you asking Jim Savery about the solder used by Behringer
for N.A. destined products btw. If you're too busy, could you remind me of his
contact details, email whatever and I'll enquire myself ?

Graham

 

[Dave Plowman (News)]

In article <gfqdar$psn$1@aioe.org>,
liquidator <mikeh@mad.scientist.com> wrote:

"Dave Plowman (News)" <dave@davenoise.co.uk> wrote in message
news:4fff41dfcddave@davenoise.co.uk...
In article <gfpmfg$6u0$1@aioe.org>,
liquidator <mikeh@mad.scientist.com> wrote:
It is not DC as people who skimmed one book and didn't understand it
want to insist.

Drive an amp hard enough and that's what you effectively get, as far as
the speaker is concerned. Try taking your head out of your arse and use
that scope.


Ignorance is bliss and you are happy the way you are.

I'm afraid you're the one displaying that ignorance. By assuming too many
things.

Simply, you are just plain wrong. You seem to be interested in making
yourself look worse and worse, go on about it with somebody else please.

You've sufficiently proven it to me.

Clipping isn't DC, obvious you never studied engineering. Or physics. Or
much else, it looks like.

Sigh. Find a basic DC coupled design and drive it *very* hard - we're
talking severe overload here - and look at the output. It will approach
the power rails.

Bye. No more time for you. Got real things to do.

Talk about a closed mind.

--
*Monday is an awful way to spend 1/7th of your life *

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.

 

[Ron Johnson]

Eeyore wrote:

liquidator wrote:

"Jamie" <jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote in message
Any one have some hip boots ? my normal boots aren't tall enough!
Jeez- another idiot to killfiter- where are you pointing out what I said was
wrong?

Jamie is notorious (with me at least) for having some very odd ideas sometimes
in the electronics groups. I think he's a little bit out of touch with current
practice in this area.

Graham

See! this is what happens when you crosspost - you get the idiots from

other groups polluting all the groups.

 

[Eeyore]

"Dave Plowman (News)" wrote:

Sigh. Find a basic DC coupled design and drive it *very* hard - we're
talking severe overload here - and look at the output. It will approach
the power rails.

It'll be virtually a square wave with almost twice the sinewave power of the
amp but not 'DC' though.

Graham

 

[Ron Johnson]

Eeyore wrote:

"Dave Plowman (News)" wrote:

Sigh. Find a basic DC coupled design and drive it *very* hard - we're
talking severe overload here - and look at the output. It will approach
the power rails.

It'll be virtually a square wave with almost twice the sinewave power of the
amp but not 'DC' though.

Graham

Alternating DC

Ron(UK)
Please note smiley (those with SoH failure need not apply)

 

[Arny Krueger]

"Eeyore" <rabbitsfriendsandrelations@hotmail.com> wrote in
message news:4921672F.B7AB124E@hotmail.com

"Dave Plowman (News)" wrote:

Sigh. Find a basic DC coupled design and drive it *very*
hard - we're talking severe overload here - and look at
the output. It will approach the power rails.

That's what saturated output devices do.

It'll be virtually a square wave with almost twice the
sinewave power of the amp but not 'DC' though.

Right, there will be a sort of sloppy square wave whose spectral content
will depend on the waveform driving the amplifier.

The peak amplitude will be the rail voltages (which will have sagged if
there is a significant load), minus the saturation voltage of the output
devices. If you look closely, there may be some funny stuff where the
output stages snap out of saturation.

This square wave will of course have more energy in it than a sine wave with
a similar peak amplitude.

 

[Ron Johnson]

Dave Plowman (News) wrote:

In article <MoKdnQseNpzE9LzUnZ2dnUVZ_vGdnZ2d@giganews.com>,
Arny Krueger <arnyk@hotpop.com> wrote:
"Eeyore" <rabbitsfriendsandrelations@hotmail.com> wrote in
message news:4921672F.B7AB124E@hotmail.com

"Dave Plowman (News)" wrote:

Sigh. Find a basic DC coupled design and drive it *very*
hard - we're talking severe overload here - and look at
the output. It will approach the power rails.

That's what saturated output devices do.

Indeed.

It'll be virtually a square wave with almost twice the
sinewave power of the amp but not 'DC' though.

As far as the speaker coil is concerned it might as well just be. And if
you measure the signal with an analogue meter DC is what you'll see.

Right, there will be a sort of sloppy square wave whose spectral content
will depend on the waveform driving the amplifier.

Agreed.

The peak amplitude will be the rail voltages (which will have sagged if
there is a significant load), minus the saturation voltage of the output
devices. If you look closely, there may be some funny stuff where the
output stages snap out of saturation.

This square wave will of course have more energy in it than a sine wave
with a similar peak amplitude.

Of course you could argue about what practical DC is. Most will have some
form of ripple etc.

I`m getting a terrible sense of DejaVu about this thread

ROn

 

[Dave Plowman (News)]

In article <MoKdnQseNpzE9LzUnZ2dnUVZ_vGdnZ2d@giganews.com>,
Arny Krueger <arnyk@hotpop.com> wrote:

"Eeyore" <rabbitsfriendsandrelations@hotmail.com> wrote in
message news:4921672F.B7AB124E@hotmail.com

"Dave Plowman (News)" wrote:

Sigh. Find a basic DC coupled design and drive it *very*
hard - we're talking severe overload here - and look at
the output. It will approach the power rails.

That's what saturated output devices do.

Indeed.

It'll be virtually a square wave with almost twice the
sinewave power of the amp but not 'DC' though.

As far as the speaker coil is concerned it might as well just be. And if
you measure the signal with an analogue meter DC is what you'll see.

Right, there will be a sort of sloppy square wave whose spectral content
will depend on the waveform driving the amplifier.

Agreed.

The peak amplitude will be the rail voltages (which will have sagged if
there is a significant load), minus the saturation voltage of the output
devices. If you look closely, there may be some funny stuff where the
output stages snap out of saturation.

This square wave will of course have more energy in it than a sine wave
with a similar peak amplitude.

Of course you could argue about what practical DC is. Most will have some
form of ripple etc.

--
*When a clock is hungry it goes back four seconds*

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.