tripath amp interfering with radio reception

[ractis]

Hi,

I'm trying to use the tripath 4-channel amp from audio digit in my car, directly above the radio receiver. It causes a lot of inteference to the radio reception.

Is there anything I can do to solve this problem?
Say, putting the amp into a metal box or the like?

thanks

 

[BWRX]

Move it far away from your radio.

Does the amp use air core inductors? If so, try switching them out for toroids or some shielded inductor.

 

[Pano]

Putting it in a metal box and grounding the box should help.

There can still be a lot of RF on the speaker lines. But your antenna wire should be shielded, right?

 

[ractis]

What if I house the amp in a cardboard box and "giftwrap" the box with aluminim foil? The foil should be in contact with the head unit chassis, which should ground it, would this work?