Is it save to convert XLR to RCA?

Dear Audio Gurus,

I have a Harman Kardon HD990 player, which has two outputs: RCA and XLR. I'd like to use them both. However, my amps and pre-amps all take RCA. I know of XLR-to-RCA cables. But the HD990 specs mention that RCS is a 2V output whereas XLR is 4V. Am I going to damage my amps and pre-amps by trying this?

Thanks,
Walfredo