1.5. I warned the wife over a year ago that when the 997 was released I would replace the 970. She is happy it hasn't happened and I was patient. For the last month or so the 970 has been displaying signs of age, with occasional no-audio episodes on startup, so I'm becoming impatient. If the 970 problems become too severe I'll have to go elsewhere. All my music and many of my movies are played from computer files, so the lack of ethernet connectivity (presumed) on the 997 will make it much easier to ditch outlaw and go with another processor. Trinnov is great in theory, and I had high hopes it would be the difference for my bad room, but it's been too long. Right now it's a race between the 997's issue and the 970's death.