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Speaker Source Selection

L

lochok

Jan 1, 1970
0
Good Afternoon,

I have what I believe not to be a unique situation.
I have three amplifiers, and a set of speakers.
I need each amplifier for something different (ones the big home one,
ones my personal one and ones because my personal one doesn't have any
aux in. Each has 8 ohm speaker connections.

I need to be able to connect each of them, with a seperate volume control,
to the speakers. My Intention was to use 3 Pots (the double ones) - one
connected to each amplifier and the two speakers connected to the outputs
of these. Will this work? And what Pots will I need?

Please - any help would be greatly appreciated. If anybody has any
recommendations, or needs clarification please don't hesitate to contact
me.


Lachlan
 
H

Homer J Simpson

Jan 1, 1970
0
I have three amplifiers, and a set of speakers.

Use a 4 position 2 pole switch.


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D

default

Jan 1, 1970
0
Good Afternoon,

I have what I believe not to be a unique situation.
I have three amplifiers, and a set of speakers.
I need each amplifier for something different (ones the big home one,
ones my personal one and ones because my personal one doesn't have any
aux in. Each has 8 ohm speaker connections.

I need to be able to connect each of them, with a seperate volume control,
to the speakers. My Intention was to use 3 Pots (the double ones) - one
connected to each amplifier and the two speakers connected to the outputs
of these. Will this work? And what Pots will I need?

Please - any help would be greatly appreciated. If anybody has any
recommendations, or needs clarification please don't hesitate to contact
me.


Lachlan
The simplest way is with a switch - A rotary with two poles and three
positions - or with stereo, I'd use four poles and three positions -
you may not have to switch the speaker common (ground) connections -
but it is safer to do so.

but it is sounding like you'd want all three program sources there at
the same time. For that you need a mixer feeding a dedicated amp and
then driving the speakers.

You could (conceivably) use "speaker volume controls for each amp to
the speaker" The name for these is "T" pad (a type of control that
keeps the impedance constant while the sound level is controlled)
T-pads and L-pads (their cheaper cousin) will still allow some of the
program source from one amp to feed back to another amp and that can
cause damage.

In any event that is not the recommended way. Predicting the likely
hood of damage would depend on a variety of factors like the amplifier
specifications and how much volume you need and how foolproof it needs
to be.
 
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