They wouldn't want to have their machinery infected by SACD (joke)...

Since the player decodes it to analogue audio the 861 doesn't know what is the source, but you need 6 analogue outs on the player / 6 cables / 6 analogues ins (I don't know if the 861 has 2 or 6 analogue inputs on one card...)

HD621, G98DH, G68ADV, Bc Acoustiqe ACT A3, 5200C DSP33, NuForce Reference 9 monoblocks, 2x SB3's, Velodyne DD-15 & DD-12 Subwoofers and a Meridian sub.