help a noob how to connect a amp

[mcb]

Hi, I bought a cheap 4channel car amp..

IM going to build my own portable stereo and this amp going to drive the speakers..

I want to connect my mp3 player dirrectly to the amp with a 3.mm to rca

but the inputs on the amp looks like this

http://www.geting.se/viewimage.php?image=2003-gi.jpg

how can I do to connect my mp3? I still want to use all 4 channels

Click to read more...

 

[Blove1991 10+ year member]

You have to connect it your Headunit

 

[mcb]

well is there no way i could use my mp3?

http://www.nardik.se/bilder/dls/yclassic_s.jpg

think something like that could work?

 

[phyphoestilic 5,000+ posts]

It could work, but its not a great idea. Generally an MP3 Player puts out a really small amount of power from the output jack. Talking milivolts. What's probably going to end up happening is, u'll probably plug it in, but it would be really low. So u'll turn the gains up on the amp, till where it get's "Loud enough" But at that point the amplifier will be clipping, and the end results are either 1.U blow the amp, 2. U blow ur speakers due to a clipped signal. Better to get a HU with a Aux input that u can plug ur MP3 player into. Or if ur MP3 player is USB, get a headunit with USB input.

 

[mcb]

yea I know that about the low output thing

but just gonna use the amp with some lousy speakers and a car battery all built in i box..I dont have to sound good just loud

if the output from the mp3 is to low i have a small headphone amp that i could use..

but i should work with that cable?

 

[phyphoestilic 5,000+ posts]

It should work, yes. I use a CD player or MP3 player to test if static from the speakers is cuse of the RCAs from the headunit. Like i said, as long as ur dont crank ur gains all the way to the point where it's clipping u should be okay.

 

[mcb]

ok thanks

but I have to use a cable like that

theres now way I can connect a 3.5mm to 2rca and get sound on all 4 speakers?

 

[phyphoestilic 5,000+ posts]

Yes there's a buncha 3.5mm to RCA cables, quick search on ebay or goto a local radio shack or something.

 

[funkyab 10+ year member]

Yes there's a buncha 3.5mm to RCA cables, quick search on ebay or goto a local radio shack or something.

no radio shak in sweden

clas ohlson or biltema is where I go.

Whats your plan with this? just a big boom box?

Midsommar tunes?

summer house stereo?

Where in Sweden are you at?

 

[phyphoestilic 5,000+ posts]

forgot he was in sweden. But there's always ebay //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 

[mcb]

hehe

yea, just a big boom box on a barnvagn, dont know whats its called in english //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I live in stockholm...

har du msn eller nåt, har lite andra frågor som du kanske kunde hjälpa mig med...kan inget om sånt här

 

[funkyab 10+ year member]

heheyea, just a big boom box on a barnvagn, dont know whats its called in english //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I live in stockholm...

har du msn eller nåt, har lite andra frågor som du kanske kunde hjälpa mig med...kan inget om sånt här

Ha ha. no problem.

Jag kan hjalpa dig (pa engelska). Min Msn address ar adambailey77@hotmail.com

 

[funkyab 10+ year member]

also to anyone else interested,,

barnvagn is a baby carriage!!

Haha,, that is going to be some funny S$%T!!! A bumpin baby stroller!!

 

[Immacomputer 10+ year member]

It could work, but its not a great idea. Generally an MP3 Player puts out a really small amount of power from the output jack. Talking milivolts. What's probably going to end up happening is, u'll probably plug it in, but it would be really low. So u'll turn the gains up on the amp, till where it get's "Loud enough" But at that point the amplifier will be clipping

Umm... no. The amp will be driven into clipping if you turn up the gain higher than you should for the given input voltage. If the input voltage is really low, you will have to crank the gain to get the same output but that doesn't mean it will be clipping. He has the same exact chance to clip the amp whether it's on an 8v pre-amp line or a 8mv line. Actually, there is a better chance of clipping with the higher input voltage.

I have an input source that is so low, I can max the gains on my amp in my room and it will not clip and does not even do full power at max volume. The input signal is just too low.