Built For Marine Use
When it comes to water & corrosion proof marine and outdoor speakers, we continue to set the standard as an innovator in technology and design. Recognizing that conventional boat speaker magnets affect compasses and autopilots, we\'ve developed a family of ultra-low magnetic field marine speakers to eliminate the serious problem.
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Poly-Planar MRD80i Marine Stereo
November 2011- Pros:
- - Digital Music Dock is Compatible with various MP3 players including iPod etc
- - Low Power consumption
- - Optional wired or wireless remotes
- Cons:
PYS was very helpful and their workmanship was excellent,
says Keith, an electrician. PYS certainly know their stuff.
-Keith
Q: 
I have a friend that is trying to get 12V from a 36V battery bank (i.e. he has six 6V batteries in series). He needs to get 12V for a heated vest (an accessory). Is there a diode or some contraption I could use after two batteries, and pull 12V from the bank? We would use one of the Newmar DC to DC converters, but they're out of his price range. Do you have any ideas? 
-Pat
