Placette RCV Passive Pre between pre and power amplifiers?

This Schitt Saga is another option!

https://www.schiit.com/products/saga-s

Now I was wondering: does it make sense to insert a RCV Passive Pre Placette Audio between the pre and the power amplifiers, in order to take advantage of its remote, without losing any of the sound quality I have at the moment?

Try just the  Passive Pre Placette between your source and the Krell (without the LS5 in).
You may be shocked at the transparency, dynamics and less colored sound you get.

Cheers George 

agree with George, up to a point.

it will depend on the impedance match and output drive between your CDP, and the Placette RVC, and then the same with your amps.

the odds are that you will prefer the Placette RVC to your active preamp in the signal path. but you really cannot 100% predict exactl how it will work or whether you like it. assuming you are buying the Placette new there is typically a 30 day money back trial period.

from 2001 to 2005 i used a balanced Placette RVC with a custom passive switchbox made by Jena Labs. it bettered my $15k Mark Levinson No.32 preamp to begin with, and then a number of other active preamps. it wasn't until i tried the (now $40k) darTZeel NHB-18NS preamp that i found a better pre than the Placette.

good luck.