power conditioner

I also use Furman power conditioners and they seem to help keep the noise away.  I have not noticed any degradation in sound quality, but if there is any lessening of sound quality it is far less than a small tweak, like upgrading a fuse in one of your components.
Now that I've added my two cents, I have a question as to where do you place your power conditioners?  I am very space limited and I wonder if I can place one of my components right on top of, or set the conditioner on top of a component.  Would there be some type of shielding I could use in between them?  My only other alternative would be to place the Furman on the floor, behind my components, where I wouldn't be able to reach it; so it would have to stay perpetually turned on. 

Before this gets too far away from my question from a few days ago, I just want to thank the people who offered advice.  I found a way to extend my bottom shelf back enough to fit my Furman behind one of my components.  I'll just have to leave the Furman always turned on, because it will be hard to reach.
Although this breeds another question.  I'm not one of those people who leave components perpetually turned on.  My thinking has always been, if you turn off a power conditioner, there will be an electrical disconnect inside the power conditioner, between your electrical system and your components. I suppose, if your house was to receive a lightning strike, the electricity would just jump the small disconnect; so it doesn't matter if the power conditioner is on or off.
Is there any difference, on or off?

Thanks everybody

Oops - I forgot.   Thanks Dave!

Actually I warm up the room (if needed) about 1-2 hours prior to listening and I turn on all the equipment and softly play music for about 45 minutes before heading down to listen.   
That said, unplugging the power conditioner would be way more difficult than reaching around a component and turning the conditioner on or off.  I haven't been that limber in years.
I'm just wondering if people have an opinion as to which way would be better.  Leave it constantly on, or get on my hands & knees and reach around a component to turn it on and off every time I listen to music.  If the general consensus is there really is no big difference, I'd just as soon save the wear & tear on my knees.    BTW - 25 years here and I've never experienced a lightning strike.

J135
"does Furman have a recommendation? And yes, nothing stops a lightning strike..."

Good idea. I should have done that first.  DOH!

So for you Furman users out there,,,,  I called Furman and spoke to Michael, a very helpful service tech.  According to Michael, Furman power conditioners protect equipment against surges regardless of whether or not they are turned on.  They don't consume much power so you can either leave them on 24/7, or turn them off when you're not listening to music. The line core melting equipment works whether the unit is on or off.  This advise works for the PL8 series as well as their most expensive conditioners.
Michael did say if a storm is heading your way and your house is susceptible to lightning strikes, for the best safety unplug the Furman.  I'm fairly well protected from lightning so the hard-to-reach Furman will stay on while my other Furmans will be switched off during non-listening times.
Also, as to the placement of the Furman units, just above or below other units, Michael recommended a 1/2 rack space between it and signal processor devices and 2 to 3 rack spaces just above or below pre-amps or amps.

Thanks to everyone for all the input.