Fiamma Quadrant 3 Group Black Espresso Machine - NewFiamma Quadrant 3 DSP Volumetric Espresso Machine. A smart solution for great espresso. The Quadrant is the classical espresso machine, now endowed with all the comforts that electronic control gives you. Inside, the Quadrant works with the 18 l boiler and thermo siphon. On the DSP models, the display allows quick monitoring of the temperature, production counters, water consumption, service cycles and the automatic daily ON OFF times. The Quadrant