I just picked up a Motherlode II. I currently have it paired with a First Watt F5. I will be swapping that out with a FW J2 during the colder months.
The Motherlode II and F5 are an incredible match. Simply stunning. The Motherlode is dead quiet with my 93db Hornshoppe Great Horned Heils. Huge soundstage,great detail,but not bright,just silky. I can't comment on your other choices, but I think you've got the right idea. Tube preamp + FW amp = surf and turf for the ears.
The Motherlode II and F5 are an incredible match. Simply stunning. The Motherlode is dead quiet with my 93db Hornshoppe Great Horned Heils. Huge soundstage,great detail,but not bright,just silky. I can't comment on your other choices, but I think you've got the right idea. Tube preamp + FW amp = surf and turf for the ears.