Preamp for Parasound A21+ with Sonus Faber Venere 3.0 speakers

Oh boy, are you are a kindergarten teacher or everyone’s mother. No one asks YOU to be spending of your precious time.

There is enough information on what OP is looking at. Even specific model. 

@OP - Yeah, I would first stick with the same manufacturer if generally like your amp sound. Unless, of course, you are looking to change sound in some way.

Don't want to waste anyone time but I am new at this. But thanks to everyone who gave me the advice I needed. 

https://www.usaudiomart.com/details/650109300-parasound-halo-p6-preamp-in-black/

I have an A23+ I originally used with a Rotel preamp. I got a great deal on a new P5 from Parasound and grabbed it, assuming it would be a great match. To my dismay, it took the life out of my system. I was surprised but after a couple of weeks comparing, it went up for sale. 

I eventually got two other preamps, a Schiit Kara and an LTA MicroZotl MZ2. Both sound great and restored the transparency the P5 killed. Maybe the P6 is better. 

1)I assume your budget is around that of the P6 ($2000). Do you need all the functions provided by it?

2)Would you consider a used unit?

3)Would you consider a tube preamp?

If answer to 1 is yes and to 2and 3 is no then go for the P6. Otherwise you are open to far more options.