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A speaker is a motor. If you apply an electrical signal to the speaker it will attempt to move the pole in or out corresponding to the electrical impulse. As the pole moves from its "at rest" the mechanical resistance increases and the poles' response varies to an ever increasing delta from the...

After a number of attempts I was able to speak with a technician at the western Denon office in California. He listened patiently while I described the condition I perceived. He agreed to listen to a unit they have there and let me know. He called and confirmed that there was a difference, that...

I am the proud new owner of a Denon 2802. In performing initial set-up I used the internal channel level settings. As it stepped automatically through the speakers I noticed a difference between LF and RF. I reduced RF and let it go through again. After several passes through I began to realize...

Keep in mind that in the case of a lightning strike, "Ground" is no longer ground, that is, it is no longer 0 potential. At the instant of the strike (it doesn't matter if it is air to ground or ground to air strike) what used to be "ground" or 0 electrical potential is now many thousands of...