Gonk you're correct of course.

Turning off auto polling will not eliminate signal acquisition delay; but for a simple stereo source on a digital input, it did reduce the delay in my system to much less than 1.5 seconds.

I do still notice the signal acquisition delay on HD cable programming that's broadcast in 5.1 and it is right around 1.5 seconds.

Tony.
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Outlaw 976, Outlaw 7700, Pro-Ject Phono Box S
Sonus Faber Domus Grand Piano (F&C), Niles HDFX (Surr. & Rear Surr.), Outlaw LFM-1 Plus, Velodyne SMS-1
Sonos multi room audio
Video: Sony KDL-46V2500, OPPO BDP-103, TiVo Premiere XL4
2-channel: Outlaw RR2150, SF Concerto Home, Outlaw LFM-2