Synthesis Synthesis Products Preamplifiers Preamplifiers Roma 117DC Preamplifier Roma 79DC Phono Preamplifier Integrated Tube Amplifiers Integrated Tube Amplifiers Action A50 Taurus Integrated Tube Amplifier Roma 510AC Integrated Tube Amplifier Roma 753AC Integrated Tube Amplifier Roma 96DC+ Integrated Tube Amplifier DACs DACs Roma 14DC+ CD - DAC Roma 69DC DAC