All, could use some help. No problems at all using SPDIF (digital audio) cable to connect a CD/DVD player to the Tone2Pro. When connecting the same CD/DVD players (2 Sony devices, Line Out) via RCA audio cables, I cannot get proper output or significant volume. After changing the Tone2 Pro to High Gain and highest volume, I can hear the audio source at a whisper (just barely).
I tried multiple high and low quality RCA audio cables, no difference. I also adjusted the input on the Tone2 Pro and the outputs on the devices.
There is no way to adjust the volume output on the CD/DVD players.
Thanks in advance.