dCBL-CAT7u is a new network cable that is an upgraded version of the dCBL-CAT7. If you have already experienced significant sound quality improvement from the previous version, the dCBL-CAT7, the dCBL-CAT7u is the Ultra version of the dCBL-CAT7, so you can expect more than that.
The main reason is that the dCBL-CAT7u is tuned and born in an ultra-high-performance network audio system that connects a sCLK-OCX10 and 3set of sNH-10G in series with the dCBL-CAT7 and an iSO-CAT6. The sound of such a system is very precise and precise enough to express the subtle nuances of the performer as well as the slightest airiness of the background. The dCBL-CAT7u is probably the only ethernet cable tuned to perfection in such a perfectionist system.
If you connect the dCBL-CAT7u to this system, between a network player and the third sNH-10G which is the last stage of the system’s Ethernet connection, it provides a clear improvement in sound transparency and textures.