The Marantz CD-72 is a compact disc player that serves as the top model in the CDx2 line. This model originates from the period when Marantz was a subsidiary of Philips, which is reflected in its use of numerous Philips-manufactured components. The CD-72 utilizes a CDM-4/19 laser mechanism and incorporates a range of integrated circuits (ICs), including the TDA8808/TDA8809 servo chipset, the SAA7310 decoder IC, the SM5840 digital filter IC, and the SAA7350 noise shaper and DAC IC. Notably, the SM5840 digital filter does not output a standard S/P DIF signal, opting instead for a separate IC, the PCF3523, to format the digital output. The SAA7350 DAC is an iteration of Philips' 'bitstream' technology, which initially faced criticism; however, its performance has been re-evaluated positively in certain contexts, notably in conjunction with high-tier audio components from other brands. There are opportunities for enhancement within the CD-72, particularly by replacing signal filter capacitors, decoupling opamp power supplies with high-quality film capacitors, and incorporating a low-noise clock. Modifying these components can significantly improve sound quality, reducing undesirable harshness. Further upgrades could involve implementing better power supplies and a discrete output stage, which might also enhance its overall performance.
