Tír Na HiFi

I often connect my little Zen personal player to our Denon mini system in the kitchen. I use the headphone out on the Zen into the Portable in on the Denon.

It works fairly well but the Denon has to be turned up very far before music pours forth. Normal radio on the Denon is at 20 on the volume scale, it is between 45 and 50 for the Zen for equivalent volume.

AFAIK there is no setting on the Denon to increase the sensitivity of the Portable in socket. Any suggestions on how to get louder music for the same volume setting as Radio. The little Denon seems to run out of steam at volume settings over 45 [compared to a CD that is]

Thanks.

I know these are obvious requirements but sometimes are over looked:
make sure that the volume control on the headphone jack is maxed out and that the volume on your zen is turned up full
otherwise you are going to need a signal booster/amp in the line in.