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<div class="im"><br>> I'm trying to design an audio system for a restaurant, and they want 3<br>> zones of mono sound. I'm looking for something that I could input stereo<br>> audio, and output 3 mono signals that combines the stereo input from a<br>
> netbook running iTunes. I'm planning to use 3 "V-12M Muting Wall Mount<br>> Volume Control" units<br>> from(<a href="http://www.ecost.com/detail.aspx?edp=37244640&source=ecostdeal&cm_mmc=CSE-" target="_blank">http://www.ecost.com/detail.aspx?edp=37244640&source=ecostdeal&cm_mmc=CSE-</a><br>
> _-Shopping.com-_-ecostdeal-_-Electronics) to independently adjust the<br>> volume in the three zones (back room, front room, outside). My plan is to<br>> find a home theater 5.1 surround system that I can set to output a mono<br>
> signal to at least 3 of the channels, and then run them through the<br>> independent volume<br><br><br></div>How many speakers per zone ?<br><br>Because if it's just three speakers, any old-school amp with a mono switch<br>
and dual speaker outs would work (2 stereo outputs = 4 mono speakers).<br><br>If this is your standard small mom-and-pop shop where you typically see a<br>beat-up old stereo behind the register, then you're set;<br><a href="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=350334276696" target="_blank">http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=350334276696</a><br>
<br>If it's anything bigger -- well, they are cheap, buy two for when it blows<br>out. :-) (However, I have a similar model to this one, and it's a great amp,<br>complete with talkover mike. In fact my Myth system is connected to it).<br>
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<div><a href="http://www.crutchfield.com/S-Rrl8AY2ahsR/learn/learningcenter/home/multiroom_diagrams.html">http://www.crutchfield.com/S-Rrl8AY2ahsR/learn/learningcenter/home/multiroom_diagrams.html</a> & <a href="http://www.crutchfield.com/Learn/learningcenter/home/multiroom_power.html?page=6">http://www.crutchfield.com/Learn/learningcenter/home/multiroom_power.html?page=6</a></div>
<div>has some great descriptions for doing a setup like you want using a standard receiver.</div>
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<div>You will need impedance matching volume controls like: <a href="http://www.amazon.com/Systems-IWIMP100WVW-Control-Impedance-Matching/dp/B000GF7RWS/ref=sr_1_2?ie=UTF8&s=electronics&qid=1270241203&sr=1-2">http://www.amazon.com/Systems-IWIMP100WVW-Control-Impedance-Matching/dp/B000GF7RWS/ref=sr_1_2?ie=UTF8&s=electronics&qid=1270241203&sr=1-2</a></div>
<div>for each channel.</div>
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<div>The connecting block is unnecessary, just run all the wires back to the amp, or combine them with a wire nut. the block is just for a cleaner look.</div>
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<div>I still think my $100 solution was just as easy, but I suppose it doesn't give independent volume controls for each room that this more expensive option would allow.</div>
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