Never seen this problem covered anywhere else, so here it goes. Sorry if old.

I've been having an issue with my PA11-NIS where 10 seconds into each track, a hissing sound would be heard on my speakers.

I finally got the USA-SPEC tech support number and called them. Using an IPOD Video (in direct mode), there's a flaw where the charging circuitry introduces more noise when the background lights turn off. Mine was set to 10 seconds, hence the hissing 10 seconds into each song.

Once I set my ipod background illumination to stay on permanently, the hissing sound never came back.

I didn't run into this problem on my ipod nano (older non-video type), only my ipod video.

So if you're an owner of a PA11-NIS, keep this tip in mind when using an IPOD Video (Ipod classic and non-video ipods are unaffected. Not sure about new NANO, IPHONE, or IPOD Touch).

So remember, to improve your sound quality, set your IPOD background illumination to stay on permanently.

 

Good tip... no way to get PAC to address this issue?

 

thanks for that tip