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Which amp is best?

post #1 of 7
11/23/12 at 3:43pm
Thread Starter 
Hello,

I have my whole house wired for sound (about 8 pairs of speakers throughout the house). I have a receiver hooked up to two of these sets, but was told it would be a fire hazard if I tried to stack more into any of the inputs and needed an amp. I'm looking to do this as cheaply as possible. Do you have any suggestions on amp options?

Thanks!
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post #2 of 7
12/6/12 at 5:28pm
Thread Starter 
Can I use a speaker selector for this? Any recommended brands?
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post #3 of 7
12/6/12 at 8:39pm
Sure. Niles makes impedance-matching speaker selectors up to 10 pair in a single unit.

The cheapest way would be to connect them in series/parallel combinations that are close to the nominal recommended impedance for your receiver. They'd all be on at the same time though that way.
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post #4 of 7
12/24/12 at 7:40am
Thread Starter 
Does anyone know anything about this idea?

http://www.outdoorspeakerdepot.com/iseipaspse.html?gclid=CO68mOavs7QCFYw-MgoddVoAOQ

Thanks!
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post #5 of 7
12/24/12 at 7:46am
It appears that it does some low impedance protection which is certainly better than not, but less efficient than the impedance matching/autoformer type.
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post #6 of 7
12/24/12 at 8:08am
Thread Starter 
Forgive me but I'm a complete newbie on this stuff! What exactly is impedence protection and why do I need it?
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post #7 of 7
12/24/12 at 9:49am
Keeps the load of the connected speakers within the acceptable range of the amp, typ. 4 ohms or higher. Without it, you risk the amp seeing too low of impedance which, best case, the amp gets hot and shuts down. Worst case, it gets hot, is damaged as a result, and goes to the scrap heap.
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