Thread: B & G Sonic Speed, power supply polarity
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Moonshadow Moonshadow is offline
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First recorded activity by BoatBanter: Nov 2006
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Default B & G Sonic Speed, power supply polarity
The power supply terminals in the control box of this unit are marked
"BR 10" and "BL 9".

Can anyone tell me which of these is the positive terminal please.
The Owners Manual is mute on this point.
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