Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 26-06-2011, 13:43   #1
Registered User

Join Date: Jan 2010
Location: Durham, NC
Boat: 40 Caliber LRC
Posts: 146
Shielded stereo speakers

I am looking into cockpit speakers for my boat and was hoping to get some feed back on the importance of shielding my speakers from my compass. I know some companies make speakers that are shielded. Are they neccessary?

Bob
__________________

__________________
rnjpinz is offline   Reply With Quote
Old 26-06-2011, 14:36   #2
Moderator Emeritus
 
David M's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: San Francisco Bay
Boat: research vessel
Posts: 10,152
Re: Shielded stereo speakers

The magnets in a speaker will affect a compass if put too close. AC current running through a speaker will not make any difference.

Simply put the speakers near the compass and see if it changes the compass heading. If it does then back the speakers away until there is no effect. I don't think for a typical sized boat speaker that you will notice a change any closer than about a meter away...maybe 2 meters away at the absolute most.
__________________

__________________
David

Life begins where land ends.
David M is offline   Reply With Quote
Old 26-06-2011, 14:41   #3
sitting on the dock of the bay

Join Date: Mar 2006
Posts: 1,513
Images: 6
Send a message via Yahoo to gonesail
Re: Shielded stereo speakers

if you have an autopilot with stern mounted fluxgate compass .. the speakers can affect that as well.
__________________
sometimes the things that may or may not be true are the things a man needs to believe in the most.
gonesail is offline   Reply With Quote
Old 26-06-2011, 15:34   #4
Registered User

Join Date: Jan 2010
Location: Durham, NC
Boat: 40 Caliber LRC
Posts: 146
Re: Shielded stereo speakers

So am I best to stay with so called shielded speakers (do they really work) or no speakers at all in the cockpit.

Bob
__________________
rnjpinz is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 08:12.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.