I have the 948s in my living room and the Maestro Utopias in my listening room.
If I were to compare the 2, the Maestros are about 20% better. Listening to something like Tin Pan Alley sounds amaizing on the 948s but it is holographic on the Maestro towers. The strings sound like they are above your head. The 948s have great low end and clean mids and highs. Definitely not to bright and I usually prefer a silk dome tweeter.
I have never heard the 936s but I'm very pleased with the 948s. I would purchase them again.
The maestro towers are driven by Pass Labs 250.8 mono blocks and are fed by a Dave DAC with Mscaler. The 948s are driven by a Pass Labs x150 and a Cutest Chord DAC.