talked to yamaha. give them the brand, and specs, of my speakers. said set my cross over to 110Hz, which it is set to. also turned on extra bass, seeing as my fronts are more than capable of handing bass. mad a huge difference in listening to music. as for the article you attached, well same old thing, everything form setting crossover from 80Hz to 120Hz, everything form where do the missing Hz go to they go here. its like a man said in a car stereo forum about setting up your car stereo, which have a lot of setting, slope, delay, crossover and more, he said sit it to where you like it. like you sit it up using all the latest gadgets just to find out your ears dont like it. but yamaha did show me where there was a setting i hadnt turned on or off, and that helped a lot. next i have to try out the enhancer setting for music to hear if that rich-ens up the music. must be a feature thats used a bit seeing as its a button on the remote to easy access. i always figure has long as i learn something then its all good.