favorite pass amp?


what is your favorite pass design amp? threshold, forte, aleph, x, xa series. does it get better in each "genereation" , i have an nak pa7 and like it's sound for my 2nd system. what's a good buy < $2000. should i go with threshold ( which model ) or pass aleph, x series, or forte,
speakers
revel m20. 801series 3 or martin logan request
a1126lin
Have any of you had a chance to compared the Aleph J with previous Alephs and or the XA series. As a point of reference I use Joule LA 150-MKII which can drive fairly low input imepdances and Merlin VSMs which efficient (89db) and have very linear impedance almost all above 8ohm and dipping to 6.5 or so at its lowest.
I guess I must be a very loyal Nelson Pass fan. My first amp was the Forte Model 6. And I still have my Aleph Os, and also the X350.5.

The Aleph Os was driving a pair of speakers in my second system. That system has been dismantled since my son was born 3 years ago. My wife loves that setup and would not allow me to sell them. I found that out when I had listed them for sale last year. I actually got yelled at by my wife.

I currently have the X350.5 driving a pair of Verity Parsifal Encores. They sounded really good, especially the bass control. I just found out from Verity that my 50 watt Aleph Os should be sufficient to drive the Parisfals so I will try that out soon and see how it sounds.

FrankC
It will sound good. It will be interesting to know which you prefer with the Verity - I can't the sense they are easy to drive where you don't loose much by moving from the X.5 to Aleph.