I wouldn't spend $4K on any digital cable. But I don't need to.
The best digital cable I've heard (I have the RCA version, but BNC is easily available) is the Oyaide 1.3 meter DR-510 coax cable. It's silver and sounded so much better than others here that I put it IMS & haven't touched it in 3+ yrs.
The BNC version is 1.3 meter DB-510. You can find it on eBay for under $200.
The best digital cable I've heard (I have the RCA version, but BNC is easily available) is the Oyaide 1.3 meter DR-510 coax cable. It's silver and sounded so much better than others here that I put it IMS & haven't touched it in 3+ yrs.
The BNC version is 1.3 meter DB-510. You can find it on eBay for under $200.