I received the Topping D50, with Ps4 worked fine, but on pc.. I tried it without installing nothing, with 44khz or 384khz it maked noticeable distortion even on low volumes, so i tried installing the driver, same distortion, then i tried downloading firmware V1. 02, same, anyway.. I Read that for V1. 02 the S/n needed to be from 1710 to 1807, mine was 1811, but it still worked with the same distortion, so first, i don't know how to get back V1.03 that was pre-installed in stock, i tried factory reset the D50 but nothing, was still V1. 02.. Second, i Wanna try to solve the distortion issue on PC.. I asked Topping, i'll wait the response. If someone know please, an help would really be appreciated
By the way I do not know the existence of Ver 1.03.
Was definitely Ver1.03 firmware installed on the D50 you bought?