[SOLVED] Low Volume with HifiBerry DAC+

[psychofaktory]

On sunday I had the change to do a A/B-comparison between Moode 2.5 and Moode 4.2 on the described system.

Volume was set to 100%. On both Moode-versions ALSA showed 100%.
At the RCA-OUTs of the Hifiberry I had a MiniDSP. With the MiniDSP 2Way Advanced-Plugin I monitored the volume at LINE-IN of the MiniDSP.
The Test-Songs were both times the same ones.

• Moode 2.5 was about 10dB louder than Moode 4.2!!
  
• the analoge gain boost setting in Moode 4.2 made no difference
  

I don't know if it's a failure with Moode 4.2 or with Moode 2.5. But I need to know how I can increase the output-volume here.

I noticed that the Input-Gain on the LINE-IN of the MiniDSP was at about 40% under Moode 4.2. So there should be enough room for a bigger input-signlal. All of my songs were set to 89dB with Replay-Gain (Album-Adjust) with MP3Gain (v1.3.4).

So is there a way to set the output-gain of moode manually to a higher value?