I connected HiBy FC3 Stereo/32bit/384KHz to the DAC and started listening to the library. With its pros: Very detailed sound, the price of these dual speaker headphones can literally be heard. With an analog connection to an external DAC or high-resolution sound card, the headphones fully reveal themselves. The XPG Precog Analog isn't a cheaper version, it's more of a version without the extra USB-C sound card. I recommend taking it to those who are primarily interested in analog sound. Included: Case, a pair of instruction booklets, a set of stickers, an adapter from a 3.5 to 2x 3.5 combo, a 3.5 mm combo headphone connection cable, a USB-C headphone connection cable, a USB-C to USB-A adapter cable. All cables are fabric braided and with metal plug bases. Its cons: Low-bit surround sound, due to implementation - the surround sound audio card is connected via USB-C to headphones and to a USB-C -> USB-A extension cable in a PC. To reduce the amount of transmitted data for 8 channels, the bit depth is limited to 16 bits 48 kHz. The backlight is completely unnecessary, it turns on only when connected via USB-C.