Line conditioners

I finally purchased my NAD components and Monitor Audio speakers. Now the salesman says I really need a Line Conditioner due to rf interference in my house and lines. Are line conditioners effective at cleaning up the power to my amp? Will there be a noticeable sound quality gain?

Thanks,
Derek

Marantz DV 7001 Universal Player Redux

FYI: Jason Ressler at Music Direct was right. After a few hundred hours of break in for the DVD-A and SACD circuits, the top end glare is gone and the mids are sweet and clean. The Marantz is capable of retrieving and transmitting lots of detail. I am listening to my CD and multi-channel collection with renewed enthusiasm.

Oh, Oliver!

Oh, Oliver!

I always thought I had a problem with Oliver Sacks. I found his <I>The New Yorker</I> articles interesting, but frustrating&mdash;I always had unanswered questions at their end. Then I read <I>Uncle Tungsten</I> and realized that his <I>m&#233;tier</I> was not the long essay but the book-length exploration of a subject.

A technical fuse question

My question may be based on a misunderstanding of basic electricity so please correct me if I have the fundamentals wrong.

My understanding is that watts is a measurement of electrical power, the actual work that can be performed. We can obtain more electrical power by increasing either the current or the voltage.

Fuses are rated in amps. Most fuses for household items are 250V. We are told that we can use 250V fuses of the same amperage rating for our nominal 120V circuits.

Thus, if I need a 5 amp fuse for an amplifier I get a 250V 5 amp fuse.

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