I have the Starlight 7 USB cables and recently got this modestly priced Oyaide Neo D+ Series B cable online for about $30. I can't say as I noticed much different in SQ between the two. What did masterfully and significantly improve the sound of my system was acquiring an ISO Regen + LPS 2 power supply. I thought my Ayre QB-9 was outstanding, but the filtering with the ISO Regen demonstrably improved my SQ: quieter background and more air around the instruments. The ISO Regen and power supply cost about $700, and were worth it. However, I previously used a USBDisruptor device and it yielded ~70% of the benefits of the ISO Regen device. It cost $150 and I'd be happy to part with it for $100 to an interested party with shipping included. It cleans up a lot of noise, no question, and makes the music much more analogue-like. The isolated power supply appears to be the key to the efficacy of these devices. They are both "plug and play."