Are Pass Labs amps probably the best ever you can buy ?

I have about 15k to spend on an amp/preamp/integrated amp.

I mostly listen to smooth jazz like Dave Koz, Rippingtons, Brian Culbertson etc.... and loud.

I have yet to hear any amp that comes close to Pass Labs.

Your experiences pls ?
You ask "best ever"? Perhaps for your ear, perhaps not.
I considered Passes 150 wpc integrated, and auditioned it...twice! Then I heard the Technical Brain integrated and was floored, I've owned more highend gear than I care to admit (Tube. SS. mono blocks) but for my room/speakers nothing has ever sounded like this Tech Brain integrated & phono stage It would be ideal to use a "multiple step process" before you let go of that hard earned green. Take the Pass home to your system and listen to what it sounds like in your environment, and, you will probably love it, especially if it's a rather large step up from the electronics you now own...the second step would be to return the Pass and try another amp in the same range. See how you react to a few different designs. You might be surprised, then again, you may realize the Pass is what you like...the one you pick will be the "best ever". Your speakers are the mouth piece of your system, so the "basic sound" is something that will not's all the other things that will...tonal tilt, warmth, detail, sound stage...your looking to change the heart of your system. Pass is a strong one!
You should give very serious regard to the Octave MRE 220 with the Super Black Boxes.  They will easily best the Pass Labs
I grew up with JBL Century L100s and I am very close to getting either JBL S3900 or JBL S4700.

They are not talked of much in these threads but I have a thing for JBLs :-)
@cakyol see if you can audition and compare to Jbl 4367. I think you’ll be surprised how much better the 4367 can perform compared to the other speakers in the synthesis range.
What to do with their gear is in their name: Pass.