Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-24-2014, 10:18 AM   #1
Rivet Master
 
Thalweg's Avatar
 
1962 24' Tradewind
Buffalo , Wyoming
Join Date: May 2012
Posts: 541
Speaker Power

I just bought a little 12 volt television to use in my '62 Tradewind. Being a little TV, it has little speakers, and therefore little volume. So I was thinking about attaching some little computer speakers to the TV through the headphone jack and placing them back where we will sit when watching TV.

Now, the speakers that I have require a power input. Currently they plug into the wall with a transformer that has an output of 7.5 volts DC. My Airstream has the old style electrical system. The 12 volt DC, and 120 volt AC are completely separate systems with no converter or inverter. I was thinking about cutting the transformer off of the speakers and powering them with the 12 volt system since we are rarely attached to shore power.

So, does anyone know if I am likely to ruin the speakers by running them off of the 12 volt system as opposed to the current 7.5 volts that they now use? Of course the 12 volt system will vary depending on the charge state of the battery, which might cause more problems.
__________________

__________________
Thalweg is offline   Reply With Quote
Old 09-24-2014, 10:26 AM   #2
King of the Zebra Speedo
 
Panama Red's Avatar
 
Obrien , Florida
Join Date: Aug 2012
Posts: 1,405
Images: 7
Speaker Power

If I had to guess, I'd say yes... You can find the little cigarette lighter plug adapters that will convert the12 volt to something more useable... I wouldn't think 7-8 volts wouldn't be a problem. Or, buy a small inverter and go that route.

-Red


Sent from my iPhone using Airstream Forums
__________________

__________________
Somebody ought to clean these windows. There is a tremendous buildup of gook all over them...
Panama Red is offline   Reply With Quote
Old 09-24-2014, 10:27 AM   #3
Rivet Master
 
AWCHIEF's Avatar
 
2006 23' Safari SE
Biloxi , Mississippi
Join Date: Nov 2011
Posts: 8,135
Images: 33
My sound bar is powered thru a USB. I plug it into the television.
__________________
MICHAEL

Do you know what a learning experience is? A learning experience is one of those things that says "You know that thing that you just did? Don't do that."
AWCHIEF is online now   Reply With Quote
Old 09-24-2014, 10:27 AM   #4
King of the Zebra Speedo
 
Panama Red's Avatar
 
Obrien , Florida
Join Date: Aug 2012
Posts: 1,405
Images: 7
Don't you love technology?


Sent from my iPhone using Airstream Forums
__________________
Somebody ought to clean these windows. There is a tremendous buildup of gook all over them...
Panama Red is offline   Reply With Quote
Old 09-24-2014, 10:38 AM   #5
Rivet Master
 
Thalweg's Avatar
 
1962 24' Tradewind
Buffalo , Wyoming
Join Date: May 2012
Posts: 541
Thanks. Yes, I do love technology (he says sarcasticly). These are cheap speakers that I have. They don't have a USB plug, just a DC plug and an audio input. If the ones I have won't work, getting USB speakers might be the best option.

Since I only have one 12 volt battery on the camper, I try to use my power as efficiently as possible. It would seem rather inefficient to convert 12 volts DC to 120 volts AC in order to convert it back down to a lower DC voltage again through an inverter. But that certainly would be an option to keep in mind.
__________________
Thalweg is offline   Reply With Quote
Old 09-24-2014, 11:23 AM   #6
Rivet Master
 
richw46's Avatar
 
2006 23' Safari SE
Lexington , Kentucky
Join Date: Dec 2012
Posts: 2,175
Images: 6
The speakers contain a small amplifier and you will burn that out by putting nearly double the voltage into it. It may work for a while but will burn out quickly. The amplifier is contained in the speaker with the 'input' plug and volume control. It sits between the input jack and the speakers.

I suggest you get an adapter that will drop the 12vdc down to 7.5vdc or get a USB powered speaker set.
__________________
-Rich

Rich & Yvonne
2006 Safari SE -Dora-
2004 4Runner SE

richw46 is offline   Reply With Quote
Old 09-24-2014, 11:48 AM   #7
Rivet Master
 
Thalweg's Avatar
 
1962 24' Tradewind
Buffalo , Wyoming
Join Date: May 2012
Posts: 541
Quote:
Originally Posted by richw46 View Post
The speakers contain a small amplifier and you will burn that out by putting nearly double the voltage into it. It may work for a while but will burn out quickly. The amplifier is contained in the speaker with the 'input' plug and volume control. It sits between the input jack and the speakers.

I suggest you get an adapter that will drop the 12vdc down to 7.5vdc or get a USB powered speaker set.
Thanks Rich. That's what I needed to know.
__________________

__________________
Thalweg is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Speaker Switch & Speaker Replacement vswingfield Audio, Video & TV 17 10-01-2011 06:48 PM
New speaker placement TomW General Interior Topics 13 04-22-2005 06:44 PM
Speaker Wiring For New Stereo j54mark Electrical - Systems, Generators, Batteries & Solar 8 04-13-2004 10:26 AM
Speaker grille removal in 2000 Excella Cracker Audio, Video & TV 8 04-12-2004 07:54 PM
Correct speaker placement, radio antenna, etc. barbwire All Argosy Trailers 0 11-29-2002 07:28 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:32 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.