We record a programme(speech and the musical with vocals and chorus) every week, which is held on a school ground. A setup of two cameras is used (Sony PD170 and a Sony Handicam). On the ground 3 projectors and TV monitors are placed for viewing the event. A Yamaha FX-24 mixer is used for audio. As soon as the audio cable is attached to the phones of the mixer for output to the cameras (as connecting to any other out socket from mixer or amplifier distorts the sound when musical programme is...

A: It is call "ground loop".Try to use the "Audio main outputs" of the mixer.

Ive got polk audio speakers and need to know which is the best amplifier.. Please suggest.. thanks

A: The best and costliest amplifer in the world is MARANTZ .
MARANTZ is manufactured in Holland and comes under the brand name Philips. No other amplifier can ever beat MARANTZ. Dont think of YAMAHA OR ONKYO.
Even if you spend a little more on MARANTZ , yes, you will get simply what you are expecting. Ensure that your speakers are of the highest quality, else if you connect it to MARANTZ, you will hear distorted sounds. This will happen if the speakers do not have the impedence...

Hisense 42" LCD HDTV:
Does anyone know what I would have to do to get the sound from the HD tv signal (being fed directly into the inbuild HD tuner in the TV with a TV aerial) to be fed into a yamaha amplifier.
I have red/white cables from 'AV out' but this obviously only outputs the AV channels, not the TV audio signal. If I need a special coax cable/optical cable etc, pls let me no!!!!
PLEASE HELP. Driving me nuts trying to work it out! I'm usually...