From the DAC stage onward, everything inside the RU9 is fully duplicated—true dual-mono, with the left and right channels completely isolated. That cuts noise and crosstalk to impressively low levels, ...

At $225, the Apos x Geshelli Merlin AKM Desktop DAC offers 32-bit/768 kHz and DSD512 support, dual USB and coax inputs, and fully balanced output with performance that rivals far pricier DACs.