kacos,

I'm assuming that by DVD, you mean using the digital SPDIF output and by SACD you mean the multi-channel analog output.

If that's the case, then there really isn't a better way to do this, because the input selection locks to a physical input.

To make it worse, I have two inputs for SA-CD on my 861v4. One called SACD2 for stereo SA-CDs which applies Trifield to the front L/R stereo pair of the IA45. The second called SACD6 uses the multi-channel definition for IA45. Two devices, one physical input.

Cheers,

Surround Music Fan/Computer Geek/Curmudgeon in training.
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861v4, HD621, Panasonic BD-P55K, Toshiba HD-A35, Oppo HD990, Dish Network 622, Pioneer DV-668AV-S w/ DVD Upgrades mod, EW Fontaine II (x5), Velodyne DD-15 (x2), Seymour AV Ice blocks (x7)