TechGuy44
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May 7, 2019

PM 8500 - DS40/16 wiring

See attached speaker chart.  I am installing a PM8500 to control 6+ zones.  I wanted to find out what the best option is for wiring the speakers, 70V or 8ohm?  12/14/16 guage wire?  I appreciate any feedback.

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ChrisJ-at-Bose
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Jun 17, 2016

Re: PM 8500 - DS40/16 wiring

Hi TechGuy,

With the speakers you've specified, you'll want to make this 70V, and not 8 ohm. Though, to truly get 6+ zones, you will need to wire and configure this for what we call 50V mono mode. 

50V Mono Mode (link)

As for wire gauge, this largely depends on the distance of each run. There are calculators online that can help determine acceptable signal loss over distance based on wattage consumption, to help with this decision. 

Example: Cable Loss Estimator

Best Regards,

ChrisJ-at-Bose

TechGuy44
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May 7, 2019

Re: PM 8500 - DS40/16 wiring

I appreciate your response.