There’s another project I’m currently in. It’s based on the DIY-kit Jazz 37. My goal was to combine a, let’s call it semi-active, and passive speaker within one. Well aware that it’s not the “audiophile” way, but I like tinkering and building things 
. The Jazz 37 can be powered by an external amp connected to the terminals or by an integrated, roon ready Hifiberry AMP2 (speakers connected through XLR-wires). Both Hifiberry Amp2 and terminals are then connected to a switch, which connects one or the other to the passive crossover. Only issue currently is that there’s no room yet to use these speakers 
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Once finished and a location is found, I’ll get into REW room correction and its implementation into Roon, as described here: A guide how to do room correction and use it in Roon
Will get back with more details and experiences made then.
