I want to put my laptop straight to my not used amp to get some nice sound of my music here and it works except:

If I use it with the battery I have no problems but when the power's on my amp keeps making a very loud humming sound.

Does someone know how I could get this away?


Edit: when I put the cable straight into the cabinet in stead of using the head the humming is gone but it's ways less loud.

This post has been edited by Mrblomme: Jan 15 2009, 02:22 PM

Poweroutlets do cause humming.

Laptop into cab isn't ideal since you need to amplify the signal before it's audioable. Since you can hear anything at all tells me it's a rather stong signal.
Laptop into amp isn't ideal either. A line level- and an instrument level signal differ. Worst case scenario when experimenting with connections inbetween different perhperals without minding the signal strengt is a *poff*, smoke and the smell of burnt circuit.
And since you can hear it pluggen straight into the cab I wouldn't reccomend putting that signal strengt into an amp.
Be carful!

Hmmmz It's perfect if I put the laptop audio signal straight into the cab but not that loud but care ...

This post has been edited by Mrblomme: Jan 15 2009, 03:14 PM

If your amp has a CD In then it works. Or atleast it did with mine and didn't blow up.

Ye also tried but the humming ... but it's from the electric circuit ...

hmm. What power rating is the amp you are using?

This post has been edited by OrganisedConfusion: Jan 15 2009, 03:27 PM

Really shouldn't know lol but it worked with my previous laptop a year ago.

This post has been edited by Mrblomme: Jan 15 2009, 03:29 PM

It's not a wise idea anyway to be fair. Amps like that are designed specifically for instrument input and speakers for computer equipment and hi fi's are very different and are designed for very different purposes. You are likely to get some white noise no matter how you use your guitar amp to play laptop music just because this isn't what it was designed for.


That is strange if it worked on an older one though.

Ye indeed but straight into my cab without my head wouldnt give problems?

It's hard to say without being there and seeing it infront of me. Like MickeM says if the about of power being thrown about is too high then something will go. All laptops are different of course as well and it really depends on a lot of things. It may work fine or seem it but it could blow your speaker, your laptop soundcard. It's always risky using an item not for it's specific intended use.

Ye I know ... I'll see when there's white smoke

Do you maybe have a hifi or some regular speakers you could use? That would be complety safe.

Ye I think I should do that, I have some old speakers, not that great but not bad.

I would always recommend using regular speakers , there are cheap plastic systems 2.1 that will work much better and safer then using the amp as your speakers

*Is searching the whole house where the bloody speakers could be*

Found them! Problem solved! thanks guys

You're welcome !
Please consult with similar things in the future when connecting equipment that isn't made to work together usually, in order not to make a fire (like I did with my PC)