Luxman vs Accuphase for Harbeth 40.3 XD

I've had the E650 and 509X.  They are pretty different.  Luxman has a sharper, crisp, and clean sound without being harsh or in your face.  Accuphase is smooth and warmer, but with a vibrant and saturated tone.  If Luxman, I would be looking at L-590AX II or L-595ASE unless you want to buy new.  No way I would pay $12k for the Accuphase, but some people just love the Accuphase sound and you could be one of them.  I bought a Japanese unit set to 100V for around $8k, and easily set it to 120V by moving a connector.

If you like Harbeth, Pass may be the ticket.  I only have experience with XA25, INT25, XA30.5, and older Aleph models, but in general Pass has the most tube-like sound to my ears, and the most palpable imaging of the 3 brands.  It gives the most "performers in the room" feeling IMO.  It could be too much of a good thing if there's a particular balance you're trying to strike, but you never know until you try.  Pass also runs the hottest, if that's a factor.

@eugene81 Thanks, very helpful. Pass just keeps coming up and heat is not a factor. 

The Simaudio Moon 700i V2 is one of the best sounding integrated amplifiers that still costs less than the most basic new automobile. A new less powerful integrated  from the North Collection 641 was recently released. 

@dayglow Interesting contender, thanks. There is a 700i V1 for sale on USA for $5500 which seems like a pretty good deal.

@macg19 I mentioned Simaudio due to the very possible synergy with the Harbeth 40.3 XD. Very neutral with top to bottom extension that won’t effect the tonality of the Harbeth. My experience with Accuphase is a saturated/darker type of sound that might not be needed/wanted on the 40.3 XD. Luxman works best on aggressive forward type of speakers with a lot of treble energy B&W/Focal and Magico. I have heard the 40.2 Harbeth with a Luxman 505(under powered?) and thought its biggest weakness was a slight boxy restricted/closed in charactaristic. Since the Moon 700i V2 or V1 is a true dual mono amp this will help open up the soundstage and give the Harbeth a more spacious airy treble/soundstage which the Moon excels at. You own a great world class set of speakers please don’t skimp on electronics. Hope my comments are somewhat helpful.