I believe this is normal behaviour - the combined optical/line output is fixed an 2V RMS.

Originally Posted by Meridian technical spec
3.5mm combination analogue/digital jack with mini Toslink digital optical <96 kHz output and 2-ch analogue line out, fixed 2v RMS.
3.5mm jack with variable-level headphone output, 130mW into 16 Ohms.
I'm also using an Explorer as a DAC from my PC into a pair of powered speakers. I've connected via the headphone output in order to get the Windows master volume control, and this arrangement works fine

Steve

Last edited by Carl; 2015-02-22 06:11. Reason: Quotation Box added
818v3, Classé 15, Quad 2905, Roon