i have connected the DAC+ pro (on a Raspi3) to a Denon RCD-M40DAB (
http://manuals.denon.com/RCDM40/EU/EN/index.php), but do not get any sound.
The DAC+ pro is connected with regular cinch-cable to the Anlog In connectors of the Denon RCD-M40DAB (http://assets.denon.com/assets/images/productimages/D-M40DAB/de_rcdm40dab_ek_sp_re_bg001_hi.png?RenditionID=3).
Connecting to my very very old amplifier from the early 90s works fine.
Any ideas what can be wrong here ?