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center channel power


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capital r 
Member - Posts: 2
Member spacespace
Joined: August 22, 2007
Posted: August 22, 2007 at 2:03 PM / IP Logged  

I'm a freakin' newb...

Hey there guys! I have a center channel speaker that needs power. My Kenwood DNX-7100 isn't 5.1 channel sound unfortunately. I have a small amp that is designed for home use, Sonic Impact if you’re familiar. It runs off 12 volt power like the rest of my A/V equipment but is designed for home use and uses a wall AC adapter.

If I find a 12V AC wall adapter, can I just chop off the adapter and connect the power and ground to my distribution blocks to power the amp? How can I identify the power and ground wires without a volt meter? Sometimes the cords on those things have one side with a white line down it, is that the ground?

Thanks guys!

roo-dog 
Copper - Posts: 124
Copper spacespace
Joined: January 17, 2007
Location: United States
Posted: August 22, 2007 at 6:37 PM / IP Logged  
   wait up... is it 12volt ac, or 12 volt dc power required by the amp?  BIG difference!  sometimes + and  - are identified in a diagram on the wall adapter itself.  but you can test it using a digital multi meter (mine has a little - sign that comes up on the screen indicating reversed polarity.  get back with more specific  info for a full answer to your question.
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capital r 
Member - Posts: 2
Member spacespace
Joined: August 22, 2007
Posted: August 22, 2007 at 11:08 PM / IP Logged  

The amp calls for an AC adapter. I have an AC adapter and on the back it says Class 2 transformer Input: 120v 60Hz 6W Output: DC12V 200mA. The amp also has a cigarette adaptor accessory that allows you to plug it in and use it in your car.

Does that help?

Thanks!

dwarren 
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Joined: December 03, 2004
Location: California, United States
Posted: August 23, 2007 at 1:42 PM / IP Logged  
I have a clarion dedicated 12 volt center channel amp (50 watts) in  my box, you wanna buy it?
DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: August 23, 2007 at 7:31 PM / IP Logged  
I'm familiar with the Sonic Impact class T amplifiers.  The standard amp is 5 watts stereo and the "super" is 15 watts stereo.  Yes, it can be used in a vehicle using the cigarette lighter adapter, but I am not sure how well it might work for your application, although they will support a 4-ohm load on each channel.  Also, there is a lot more to adding a center channel than powering a speaker and sticking it in your dash.  Do you have a center channel processor to drive it?  (Something like the Clarion unit dwarren mentions above has the processor built in.)
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roo-dog 
Copper - Posts: 124
Copper spacespace
Joined: January 17, 2007
Location: United States
Posted: August 23, 2007 at 11:14 PM / IP Logged  
  yes, good point.  getting the right sound to the center channel can be just as important as HOW you power it.  however, i have played around several times by just adding a small pair of plates running stereo in the center of the console and it did add some deph to the sound of the car, but not the same as a true 5.1imaging.  i also had 30-40 watts going to them to hear them. 
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