Well, of course I'll pester both of you and any one else who pops in, with all the ins and outs and ups and downs of my new amp installation. Hal will possibly not even be home the day it arrives and if he is he's not going to want to hear me muttering to myself, or to him, I mutter to him and the dogs a lot, drives him nuts. ;-pRMConsider this: muttering is preferable to throwing things. And some of the best conversations I’ve had are with myself especially when setting up equipment.Unless the YPAO sounds like a vacuum cleaner or dogs barking the dogs will probably ignore it. I wonder how long set up will take? The Sony had nothing but test tones and decibel levels. At least I couldn't figure out if there was anything else to do.YPAO doesn’t take long to run. Each speaker is given a sweep signal (sounds like a whoop) covering both high and low frequencies measuring the speaker’s tonality, distance to the mic placed in the seating area and reverb time, the polarity of the wiring, the equalization of each speaker, and if the speaker should be set as ‘large’ or ‘small. All of these can be altered in the ‘manual settings’ of the menu but usually don’t need changing (except I brought up the center 2 dB because I thought it a tad low). I've read these new-fangled machines are a bit more complicated.The guts are yet operationally and in setup not as much as in the days when all there was were test tones and using a SPL meter to get the levels right. I have a test disc from Technics giving set frequencies and pink noise which I used with a Radio Shack SPL – haven’t touched either in years. Most satisfied with YPAO.Good thing I know how to read manuals. Even electronic ones.Yamaha has a reputation of producing excruciatingly detailed manuals. ‘All you wanted to know about the tweaking the amplifier but were afraid to ask’. Basic stuff is basic stuff but Yamaha even gets loquacious about that. But, then again, I don’t like skimpy manuals preferring the feeling I’m talking with their head engineers. MichaelR
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