Pass Labs: INT-60 vs X150.8 + XP-12 Separates


Is there a distinct sonic difference between a Pass INT-60 ($9000) and X150.8 + XP-12 ($12,500)? 
Is the INT-60 topology and sonics closest to the XP-12 and X series?
If not, an INT-60 simplifies setup, not having to worry about cable synergy.

I’m coming from a tube setup, and looking for 3D, holographic, and spacious sound, but with solid state dynamics and frequency extension. My speakers are 89db 8” 2.5-way, and 13” 3-way - all Scan-Speak drivers and mostly Mundorf Silver Oil Caps, seasoned with Duelund Bypass Caps which are capable of amazing detail and imaging.

Thanks!
88man
I used my Pass Int-60 with Focal Speakers, 90 db sensitivity. Rocking the room the needle never crossed from operating in Class A to Class AB. Pure Class A is soooo sweet, it is worth it.
Thanks everyone for the great advice and encouragement. Mark at Reno Hifi is a fantastic resource and is very knowledgeable. I got the XP-22 and X250.8. I think this combination can offer the best balance of class A (up to 25W / 8 ohm, 40W / 4 ohm), refinement, air, imaging, soundstage, power, dynamics, detail, tonal/timbral vitality, and versatility of separates.
No sure I know the power doubles but I don’t think the class A output increases going into 4 ohms, anyone? I have the same amp and it is indeed great.