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Speaker question

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Busterboy View Drop Down
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    Posted: 17 January 2019 at 7:27pm
Hi There
This may appear very basic, but I would appreciate someone to share their knowledge.
We have a 12v dab car radio fitted to our narrow boat, it is fitted with a pair of speakers in the lounge and a further pair in the bedroom corresponding to the front and rear speakers in a car.
There are times when we just want the speakers in the lounge working ( when the wife feels like a peace in the bedroom).
I would like to fit an on/off switch in the bedroom but I understand that if I just have an open/closed switch in the feed to the bedroom speakers and leave the supply open circuit it would damage the radio.
What should I do? 
Thanks in advance.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2019 at 8:32pm
Use the fade control on the radio?
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Busterboy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Busterboy Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2019 at 9:23pm
Thanks for your suggestion, but I need a switch in the bedroom that we can just switch off easily, to adjust fade control requires six menus to adjust down then another six to re-instate, too much faffing around.
Robert
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2019 at 9:50pm
Six menus, ouch.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cravings Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2019 at 9:59pm
i wouldn't have thought it would damage the radio to just leave it open.. what is the model?
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Busterboy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Busterboy Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2019 at 10:18pm
it's just a standard Kenwood DAB with Bluetooth and CD.
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I-shen Soundboy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote I-shen Soundboy Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2019 at 10:24pm
No problem running Kenwood car stereos with open channels.  I run one with both amplifer channels open, just using the line out.

For safety, i'd use a DPST switch (break on both speaker wires), but a car hi-fi  probably couldn't electocute a mouse.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GAZ. Quote  Post ReplyReply Direct Link To This Post Posted: 18 January 2019 at 12:15am
The other thing you could use is a speaker level control, they look similar to a household dimmer switch.
They control a stereo pair and give you added level control as well as muting the speakers.
100% Earth Moving Bass
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