My active speakers have two pairs of RCA inputs, manual states their sensitivities as: AUX: 550mV +-50mV PC: 700mV +-50mV Which should I use? And what difference would it make? My DAC's manual states: Line Out output level: 2.38Vrms @ 1kHz I am new to this and any comment is welcome.

Is it possible reuse my old 2.1 subwoofer with a pair of new active speakers? The subwoofer inputs from L/R RCA ports. Currently I am outputting from a DAC (L/R RCA out). The idea is to split the signal into two pairs: one goes to my new speakers, and the other to my old subwoofer with no...

I know that the D3 comes with its own amp, but what about pairing it with the A30? I am satisfied with what I hear from my HD598 through the D3. I am thinking of getting the DT880 (600 ohm) next and wondered if it would work well with D3+A30. Any comment welcome. Feel free to point out my...