The BC509 and BC507 digital to analog converters share the same decoding engine. The difference is in what size fuel tank and what kind of fuel they use.
The Digital to Analog Section:
The digital to analog part of the machine will support anywhere from 16 bits to 24 bits - 30KHz to 216Khz and anything in between, including 16/44, 16/44.1, 16/48, 24/96, 24/196 and more.
Every signal trace on board has been carefully designed and tested. It features a complete DC path to ensure ultra low jitter performance. Another feature that adds to the signal performance is the microprocessor is not used in the control circuit. The less the clock contaminates the signal the better. The unique analog output stage uses a design similar to those in our best solid-state preamp, the BC109CP2.