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C
Guest
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 Posted: Thu Jan 04, 2007 4:58 am Post subject: Impedance Matching VOlume Control |
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Hello! I have searched the archive but can't find what I am looking for.
Similar question but mine has a little extra that I can't figure out.
I want to distribute the sound to some speakers at various location in the
house and have control of the volume locally. Using Impedance Matching
Volume Control (IMVC) seems to be the solution. However, If I want to add
an A/B switch in one location so that I can use the speakers in that
location for the central source or the local source, it changes the
impedance of the central circuits.
I've been told I need to use a speaker selector box (and leave them all ON
if I want) but I am not sure I understand.
Please see my installation here:
http://img518.imageshack.us/img518/4228/imvclc1.jpg
It shows want I want to do. There are some questions too. All the help is
welcome.
Thanks
Chris
thespade13YOUneed2removethis@yahoo.ca |
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Barry Mann
Guest
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| Posted: Thu Jan 04, 2007 4:58 am Post subject: Re: Impedance Matching VOlume Control |
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In <T__mh.111322$Rg5.974110@weber.videotron.net>, on 01/03/07
at 10:59 PM, "C" <thespade13YOUneed2removethis@yahoo.ca> said:
Russound, Sonance, Niles, and others make impedance matching volume
controls that will work fine in your system. There is no need for the
speaker selector box, just take care to strap the volume controls
correctly.
Amplifiers are upset when the impedance is too low (too many speakers).
The controlls will fix the problem of too many speakers. When your A/B
switch transfers two pairs of speakers, neither amplifier will be in
danger. The second amplifier will be within it's design limit with or
without the controls and the first amplifier will see a reduced
workload when the speakers are switched to the second amplifier.
If either amplifier is 100 Watts or more, I recommend adding a low
filter between that amplifier and the controls (one two channel filter
per amplifier).
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spam: spam@uce.gov
wordgame:123(abc):<14 9 20 5 2 9 18 4 at 22 15 9 3 5 14 5 20 dot 3 15
13> (Barry Mann)
[sorry about the puzzle, spammers are ruining my mailbox]
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