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12v outside the car


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jachong 
Member - Posts: 7
Member spacespace
Joined: May 14, 2009
Location: Maryland, United States
Posted: May 14, 2009 at 12:08 PM / IP Logged  
Hi to all!
Not sure I'm on the right forum, but I will give it a try...
I have a couple of good ol' tape stereos (Alpine 7390 & Harman Kardon CR-151) that I would like to have them play into my garage along with a couple of amps and speakers...
What I would like to build is a small rack with these components installed (a la Best Buy type of rack). My question is, How do I power them? Any recommendations on what type of power supply I will need that can handle them. unfortunately the amps are a little bit big (Rockford Power 300 and Punch 150)
Also, any idea of the company that build the relays (or switches) that allow you to choose/play different combination of head units/amps/speakers?
Many thanks!
~jachong
vibrationcustum 
Copper - Posts: 171
Copper spacespace
Joined: April 05, 2009
Location: Michigan, United States
Posted: May 14, 2009 at 12:19 PM / IP Logged  
a couple deep cycles battery's and a battery charger. That is what I used for my set up in my garage.
Can't be loud then don't have it.
(power acoustik system)
Head unit- TID-896 7" TOUCHSCREEN
ovn1-5500d 09 and another one coming soon
4-12" mofos 12ft3 box to 40hz (wall)
2 batterys, 1 power
jachong 
Member - Posts: 7
Member spacespace
Joined: May 14, 2009
Location: Maryland, United States
Posted: May 14, 2009 at 12:40 PM / IP Logged  
Thanks!
Can you recall what battery charger are you using? how do you wire both batteries, parallel?
Do you know if there's a solution that doesn't require the use of batteries? I have a nosy dog and a couple of curios toddlers (if you know what I mean) :)
Thanks!
~jachong
kassdog 
Copper - Posts: 257
Copper spacespace
Joined: March 09, 2007
Location: United States
Posted: May 14, 2009 at 12:59 PM / IP Logged  
Or you can go to radio shack or something and get a power inverter.
jachong 
Member - Posts: 7
Member spacespace
Joined: May 14, 2009
Location: Maryland, United States
Posted: May 14, 2009 at 1:19 PM / IP Logged  
Most of the power inverters are from 12v --> 120v. What I would like to find is from 120V --> 12v. with maybe 30 Amps (?)
I wonder what type of power setup the stereo racks of the department stores have, even to handle the big amps/subs they have running.
Any ideas?
aznboi3644 
Gold - Posts: 2,600
Gold spaceThis member consistently provides reliable informationspace
Joined: May 01, 2006
Location: United States
Posted: May 14, 2009 at 2:47 PM / IP Logged  
what you need is a 12 volt power supply. I have a 25 amp power supply from radio shack and I can power a 200 watt rms amp all day long. I used to have an old deck and 50w x 2 @ 2 ohm amp that would crank all day.
Much better than batteries and a charger as the charger would only be helping while the equipment is off and not pulling power.
Custom Enclosure Design
jachong 
Member - Posts: 7
Member spacespace
Joined: May 14, 2009
Location: Maryland, United States
Posted: May 14, 2009 at 3:56 PM / IP Logged  
I think I found one:
http://www......com/item_7691_Pyramid+PS52KX.html
Any idea on the switching mechanism on using one out of 2 stereos? Like the ones on Best Buy or the now defunct Circuit City. :)
Thanks!
~jachong
kassdog 
Copper - Posts: 257
Copper spacespace
Joined: March 09, 2007
Location: United States
Posted: May 14, 2009 at 5:20 PM / IP Logged  
Well the ones that best buy and other retailers have are expensive. Roughly 3,000-5,000. What is the reason you want one?
the12volt 
Administrator - Posts: 3,955
Administrator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 07, 2002
Location: Louisiana, United States
KPierson 
Platinum - Posts: 3,527
Platinum spaceThis member consistently provides reliable informationspace
Joined: April 14, 2005
Location: Ohio, United States
Posted: May 14, 2009 at 6:01 PM / IP Logged  
Look in to an Astron power supply - they are great for power automotive junk and arn't too terribly priced.  If you want something that is going to last skip the Pyramid and go with the Astron.
Kevin Pierson

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