A review here of the new 13a control board for our 3 input kits.
Working on yours Marco, at the moment.

http://robmid42.wixsite.com/diyaudio...ocoffee-review

Note the graph shows in room response at chair listening position
via Kef LS50 located at the other side of the room, and measured
at listening position via a inexpensive microphone.

Cheers / Chris