Over the last year have been slowly building a DIY speaker with BG NEO3PDR tweeters and NEO10 midrange with 6x12 servo sub towers. Finally have it all working with the digital crossover and voicing sounding very good.
Each planar has it's own dedicated, DC balanced input Class AB amp without the need for Zobel or Theil networks for amp stability.
The 6x12 servo subs were flat packs that I bought and assembled. They are each driven by the Rythmik Audio HX800XLR3 servo amps.
The room/Lab is dedicated to listening, so no WAF requirements.
I have the MS-3 PC Music Server driving the dspMusik digital crossover for driving the amps all with balanced inputs for HiRez digital replay. Getting ready to try the turntable setup for analog input to the dspMusik. Digital volume control is handled by the Wolfson DAC's 32bit attenuator in the dspMusik.