Happy to report that the replacement NAD D 3045 is working just fine now. The not turning off issue only happened the very first time I turned it on...no repeat after unplugging and plugging back in. Further, as before, I LOVE the sound. It is a bit weird in that I have gone through SO many integrated amps over the past few years and to a one, they almost all sounded too bright to me. The treble literally starts hurting my ears and gets the tinnitus a raging. The 3045 does NOT do that. It has a nicely plump, full, and rounded/pleasing sound to it that my ears really take to. So, when a song has a ringing bell or thunder clap, it doesn't sound shrill or piercing, it just sounds balanced. I actually feel like I hear MORE of the mix because I'm not overwhelmed w bright top end. I said before and will say again, I really do think that the NAD D 3045 is by far the best sounding integrated amplifier I have ever heard. Further, as I've seen page after page of dudes complaining about needing to tame a bright sounding system...it seems to me that this amp is one that many should try. I would add to that, that I tried a NAD 368, which is a similar type of amp made by NAD w more watts. It did NOT sound the same as the 3045. Not sure what the difference was...maybe the increase in watts just gets the tweeter a tweeting more...don't know. I did know after listening to it for a short period of time that it would not work for me. I have been trying (and trying) to get OFF of the revolving door of amps and speakers. I feel like I have reached my stop. Of course, as an aspiring audiophile, I never will say truly NEVER. But, until an integrated comes along to unseed the 3045, I am content and happy with my system. I may add or take away, but I think the 3045 is going to be sticking around for the long haul. Peace!