Re: Multi-Speaker Distribution

["Robert L Bass" <robertlbass@xxxxxxxxxxx>]

> Robert,
>     Thanks for the info.  I only have 1 set of additional speakers
> right now, so I'll only need the one volume control.  As I add
> additional zones I'll also add IM volume controls.  Thanks again.

No problem.  Just remember to adjust the IM settings on all the volume
controls as you add more.  If there are only two sets of speakers on the
amp, a 2X setting is fine.  At three sets, go to 4X.  Beyond 4 sets use the
8X setting.

There's a way to give a bit more oomph to the speakers in a larger room if
you wish.  If you set one VC to 4X and the rest to 8X the 4X room will get
twice the power (~40% louder output) of the other rooms.  If you decide to
do this, be sure to do a load calculation first.  It's a simple math
equation that's expressed like this:  "The net resistance of a parallel
circuit is equal to the inverse of the sum of the inverses of the component
resistances."  Someone more erudite than I would likely express that better.
:^)

Example: Two rooms with 8-Ohm speakers set to 4X and one room with 8-Ohm
speakers set to 2X.

Solution:  1/((1/(8x4))+(1/(8x4))+(1/(8x2))) = 8-Ohms.

In short, if you have three rooms with similar speakers and you want more
sound in one of them, set that room for 2X and the others for 4X.  The
overall system will present the same load on the amp as a single pair of
speakers.

If you need parts, I sell this stuff online (URL below).  Have fun.

--

Regards,
Robert L Bass

=============================>
Bass Home Electronics
2291 Pine View Circle
Sarasota · Florida · 34231
941-925-9747 Sales & Tech Support
http://www.bassburglaralarms.com
=============================>