and outdated opamp assembly behind the DAC which is reflected in a rather treble-friendly, slightly harsh sound. In addition, the device is quite sensitive to vibration and requires a solid footprint.
electrolytic capacitors are used (Elna Cerafine) which are now also EOL. The same applies to the electronics for the power supply of the output stage. By replacing the opamps with NJM2068DD, the coupling capacitors with 2.2µF Pps from Panasonic and new Sieb electrolytic capacitors, it was possible to achieve a much more balanced sound with my device without a "high-altitude ass" that I like better than, for example, that of a Sony CDP-X333ES . The cost of parts is low, but the conversion is a bit fiddly.