I am a Building Inspector, so I have unique knowledge. At the same time I am an Audiophile, I do understand the need for the ?Best?. I did put in a ?Dedicated 20 amp circuit? for my amp. I did it because my amp?s Owner Manual recommends it. When I look at TWEAKS, I do the math. What do I get for the money! If spend $200.00 for a power cord which gives me minor improvement is it worth the MONEY? I would rather spend the money on recordings. Like I said I am a audiophile, so I will spend $250.00 to replace 3 month old factory tubes because I read a review somewhere which stated ? Replacing the cheap original Chinese tubes will greatly improve the sound quality? Go figure, such is life in front of the speakers.