Sorry, I am new to audio tech. I don't understand what you meant by "You would need an interface to generate the upsample signal ". I checked my DVD player has a built-in 24bit decoder but the digital output doesn't send 24bit signal but 20bit instead. I connected the coaxial output from DVD to the DAC and it was locked to either 44kz or another higher up when I played a CD or DVD audio, the output jacks are connected to the CD input of my stereo amp. Do I need something else in between?
Musical Fidelity X-24K
I recently bought a 2nd hand X-24K and tried to connect to my NAD amp with great expectation. Unfortuately, it only produced woooooo noise. If I turned on volume high, I could barely hear the songs. I wonder if this DAC only supports 24bit Digital ouput from the transport. Otherwise it doesn't decode properly.