I have the loki max and it works excellently. I love it. Easily will work as a loudness control to increase the bass and treble. 3 presets, balanced and a remote.
With regards to your your other post... I listen at low volumes a lot. My Zu Definitions IV are very dynamic at low volume. They wake right up with no need to turn up the volume to hear the extreme frequencies. Two 10" dual concentric cones with no crossover driven directly from the amp. Powered sub helps with the low freqs at low volume. Also, you don't need a low powered amp for these efficient speakers as I am currently using a high powered SS Levenson amp to successfully drive them.