Laptop / kam kka400 interference

barneyboy · Post by **barneyboy** » Wed May 05, 2010 5:09 am

Hi

I hppe someone can shed some light on my problem, I run karaoke from my lap top, last year I had no problems using a Carlsberg Merlin amp and a ka500 vocal controller, this year I brought a kam kka 400 combined karaoke amp etc, when I use it from the laptop running off the laptop battery no problem, as soon as I conect the laptop to the power supply, the interference is dreadful. anyone have ANY suggestions for me
Many thanks

Barney

DanG2006 · Post by **DanG2006** » Wed May 05, 2010 10:14 am

You need a ground loop isolator maybe or outside usb sound card.

Bigdog · Post by **Bigdog** » Thu May 06, 2010 3:37 am

For the audio use this.

http://www.radioshack.com/product/index ... Id=2062214

For the video use this one. May as well buy it and use it all the time because you never know which job you will need it. Mine are hooked up all the time.

http://www.mcmelectronics.com/product/D ... 7-/33-6927

mwadeson · Post by **mwadeson** » Fri May 07, 2010 2:33 pm

i have my computer componutes plugged into a power strip without a ground plug on it seems to help eliminate the hum that i got even with the ground loop isolator

Bigdog · Post by **Bigdog** » Fri May 07, 2010 7:20 pm

mwadeson wrote:i have my computer componutes plugged into a power strip without a ground plug on it seems to help eliminate the hum that i got even with the ground loop isolator

That won't always help because the bar TV you hook up to may be on a different circuit. I have played places that needed the ground loop isolator and some that didn't. But you never know when and where you will need it. If it's your first night at the job and you need it and don't have it, you're screwed.