I bought Brian's Sunrise cable for my 1964Ears Quads. The cable's build quality is top notch, very professional, and incredibly flexible & comfortable. BTW, it looks lovely too. It paired quite well with the Quads in that it delicately articulated the Quad's native tuning (smooth, natural, studio sound with slightly boosted bass). Brian's customer service, attention to detail, and prompt turnaround is as good as I've experienced & his pricing is very fair & honest. I'd definitely recommend him for any of cable/modding needs.