about speakers with external power supply

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#1 21666170 28 Jan 2013 12:46

naga Raju naga Raju

Anonymous

Post #1
21666170 28 Jan 2013 12:46

how to make a speaker which works on external power ? and how to give an audio signal to that speaker.....?is there any external circuits....? plz send the circuit.........to this mail ...........nsnags786(_at_)gmail.com
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#2 21666171 28 Jan 2013 13:10

Steve Lawson Steve Lawson

Anonymous

Post #2
21666171 28 Jan 2013 13:10

Are you talking about a self powered speaker? If so, do you already have a speaker, and if so what are it's specs. If not, what kind of power output are you hoping for? What kind of input are you planning (line-out, microphone [type], digital input, ...?), etc. ?
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#3 21666172 28 Jan 2013 19:30

Earl Albin Earl Albin

Anonymous

Post #3
21666172 28 Jan 2013 19:30

Eggg_Zackly!!

Self powered speaker is a speaker with a built in power amplifier (very tough question please be fair). It has a low level input, say 100mV signal from a preamp usually provided via an RCA cable/jack.

There is an alternate method to deliver the audio and that is via a piece of string, don't laugh or roll your eyes, it works.
#4 21666173 28 Jan 2013 19:59

Mark Harrington Mark Harrington

Anonymous

Post #4
21666173 28 Jan 2013 19:59

Does this person mean a powered speaker in terms of the voice coil being attached to supply in order to produce and electro magnetic field such as you would find in a valve radio Or does he mean something totally different

Does he mean a battery operated amplifier what exactly does he mean

I’m surprised you didn’t ask that question Earl being a valve radio man and knowing so much about valves and vintage appliances Really surprised
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#5 21666174 28 Jan 2013 20:25

Earl Albin Earl Albin

Anonymous

Post #5
21666174 28 Jan 2013 20:25

Eggg_Zackly!!

All of the aforementioned.
#6 21666175 31 Jan 2013 22:31

Floy Viola Floy Viola

Anonymous

Post #6
21666175 31 Jan 2013 22:31

another guessing game for us. but i believe, qouting Mark "a powered speaker in terms of a voice coil being connected to a supply in order to produce an electro magnetic field" is what he meant.
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#7 21666176 01 Feb 2013 03:57

Steve Lawson Steve Lawson

Anonymous

Post #7
21666176 01 Feb 2013 03:57

Oh yeah -- I forgot about those! I think they are called _dynamic speakers_. Had a radio with one in it when I was a kid
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