I'm an audiophile from Shanghai, China. I've just read your review on the Simaudio Moon 300D. At the moment I use Silverline Minuet speakers and a Simaudio Moon i-1 and CD-1. I’m considering getting a 300D for computer-based audio. I’m wondering if you compared the USB input of the 300D with one of its S/PDIF inputs being fed from a sound card's S/PDIF output. My suspicion is that Simaudio would recommend the S/PDIF input for higher resolution and was wondering what you think. Thank you very much!
Nihao Wu! It's great to hear from a reader in China.
I didn't try an S/PDIF output directly from my audio computer to the 300D, just USB. However you are correct that the S/PDIF input will offer higher-quality sound. The USB input on the 300D is limited to 16/48, but its S/PDIF inputs will go all the way to 24/192. It was my plan to buy an Asus Xonar computer sound card and use its S/PDIF output into the 300D for up to 24/192 resolution computer audio, but instead I bought an iMac and will use it with Amarra software and USB, probably with an Ayre QB-9 DAC (to be determined). Of course, even limited to 16/48 with USB, the 300D sounds great. My plan to go to higher resolution isn't because I think something is missing from the sound of the 300D’s USB input, but because as a reviewer I have to be able to use the full capabilities of the products I review. . . . Colin Smith