i want to use my car amp for my home hi fi

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jhiggs

Member - Posts: 11

Joined: October 27, 2002

Location: Philippines

Posted: October 27, 2002 at 8:50 AM / IP Logged

i recently bought a new amp and replaced my old sound stream granite 120.4 amp i dont want to trow it away so i want to use it at my room. i figured it will make my hi fi sound even better if only i know how to do it. i only know the basics like wiring up my audio/video sys. please help.

cant even power the amp!

Velocity Motors

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Joined: March 08, 2002

Location: Manitoba, Canada

Posted: October 27, 2002 at 9:02 AM / IP Logged

Get a regulated power supply to power the amp. The input signal you can use from any source ( CD player, tape player, DVD, VCR, etc ). Just use a jumper wire from the 12 volts to the remote turn on and it will work for you.

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

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jhiggs

Member - Posts: 11

Joined: October 27, 2002

Location: Philippines

Posted: October 27, 2002 at 9:18 AM / IP Logged

thanks

let me get this straigth, got a 12V power supply here, this is the part i want to be carful with i have to jumper the +12V to the remote? as for the ground should be connected to the (-) of the power supp.?

Aw1208q

Copper - Posts: 42

Joined: August 06, 2002

Location: United States

Posted: October 27, 2002 at 10:19 AM / IP Logged

you can can get a power supply from your local radio shack for less than 40. hook the amp ground to the (-) on the power supply. hook the remote wire to the (+) output on the power supply to get the amp to turn on.

Velocity Motors

Moderator - Posts: 12,488

Joined: March 08, 2002

Location: Manitoba, Canada

Posted: October 27, 2002 at 11:08 AM / IP Logged

Also you have to make sure that the speakers that you are powering can support a 4 ohm stereo load. Just make suer of this before you power up any speakers.

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

jhiggs

Member - Posts: 11

Joined: October 27, 2002

Location: Philippines

Posted: October 28, 2002 at 7:33 AM / IP Logged

done! we did it i guess it powers up ok. also i attached a 4ohms speaker to it.

the only thing im poundering on is getting the bass i used to get in my car?

got some info how to do this?

SnomanF150

Silver - Posts: 269

Joined: September 19, 2002

Location: United States

Posted: October 28, 2002 at 8:55 PM / IP Logged

stick the box in a corner and load it up.. you might wanna check the power supply you have.. if the voltage is dropping, no power.. that little 5amp, radio shack inverter not going to cut.. might want to look into getting an Astron power supply

George

David's Car Stereo

Baton Rouge, LA

jhiggs

Member - Posts: 11

Joined: October 27, 2002

Location: Philippines

Posted: October 30, 2002 at 8:24 PM / IP Logged

well, how many amps do i need?

SnomanF150

Silver - Posts: 269

Joined: September 19, 2002

Location: United States

Posted: October 30, 2002 at 10:21 PM / IP Logged

Depends on the amp... remember a basic rule........ watt / voltage = Amps

in other words, if you have a 120 watt amp, with 12 volts, you need 10amp power supply.. of course, that's with a 100% effiency rating.. and we all know AMPS ARE 100%, Right??!?!?!?!!! yeah.. right..

A little Ohms law basic math is all that's needed here..

George

David's Car Stereo

Baton Rouge, LA

jhiggs

Member - Posts: 11

Joined: October 27, 2002

Location: Philippines

Posted: October 31, 2002 at 7:31 AM / IP Logged

ok, this is getting more clearer to me. thank you this is very informative. but what will happen when i amperes are short than the amp require?!

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