Thanks again, I built my own audio cable correctly. Since I know that there is also video signal in the TRS jack so I paied attention in order to match all the audio signals correctly on both side (Left,Right and Ground) . mahjongg : I have also used an other class D amplifier(http://www.ebay.it/itm...

Ok, Thanks to all . I dont want to use hdmi or external USB sound card to make it working. I just want to connect the analog output to an external amplifier using the some power source. Nightwing2012, what do you mean with " split power supply" ? and shield speaker wires? My amplifier is an amazon c...

Hi, I have a pi b+ powered by 1A wall switching adapter and I connect the A/V output of the PI (just Right , Left and Ground ) to an external amplifier (3W) which shares the same power supply (5Volt) If I dont play anything via omxplayer command , I hear a lot of noises in my 4ohm speaker. If I surf...

Solved:

Hi , I get all working simple using to different power supply one for rasp and one for amplifier.
There was a problem in the ground path.
Thanks a lot.

Hi fruitoftheloom, Thanks for the reply. I bought one male 4 pole jack and one 3 pole male jack this afternoon than i built the cable on my own following your link. On the raspi b+ model I soldered the ground, the right and the left as the link (ground to pin3 , right on pin 2 and left on pin1, i do...

Hi, I hav a raspi b+ model and I want to connect the analog output to 10w audio amplifier I bought from ebay. I know that B+ model has both audio and video coming out (4pole female jack) My amplifier has a 3 pole jack input (left,righ,ground) and when I connect a simple male to male 3 pole from my P...