The Zohan

I have a Kenwood CD multichanger.

This has only just started happening (i think)
If i have the volume up loud (vol goes from 0-40 - above 29)
after a couple of minutes the vol level starts to drop off and distort (slight distortion) - i have to decrease the volume below about 20 then it picks back up again. this no3w happens each and every time.

Any advice gratefully recieved

Thanks

Paul

chiark

Your internal amp is getting too hot and throttling back the output.

Are you by any chance running two speakers off one set of outputs?

Solution: use an external amplifier. Even a low powered one (such as alpine 3522s 2x35W for about 70 quid) will be so much more effective. Despite being a "lower" power rating, it is about the size of a head unit, has a significant heat sink, etc... Makes you wonder on how they can fit the same amount of electronics needed to make a decent signal into a head unit. Or can they

Nick.

The Zohan

Thanks for the reply
The head unit is 4 x 40 watts per channel
I used the existing wiring as supplied within the car so i believe only one speaker per channel is connected
The speakers are 3-way Sony(ft)/Kenwood(r) units rated at 80 watts per channel

I know the head unit has pre-outs so perhaps an external amp is the answer.


Paul

nom

Don't believe the power output from the head unit - it doesn't mean anything. Well, it might, but nothing useful. The 2x35w of an external amp is wayyyy more than 4x40w of an internal. I'd go with Nick's suggestion!