You've obviously done some research into the possibilities. I've never heard the Snell Type AIII, but the numbers you provide, with a 12" woofer and moderate-to-low sensitivity suggest that you're more than likely going to go with a solid state amplifier, as a tube amp for those speakers in a big room would likely get expensive and hot.
So, not knowing your listening preferences and what you've already heard, I would naively come up with a system such as:
Electrocompaniet ECD-1 DAC
Plinius 9200 integrated amp
The Plinius should be able to drive the speakers and you've simplified your setup and possibly reduced your cost by using an integrated, at the expense of a little flexibility.
We really need more information to make an informed decision, though. What kind of sound do you like? Lean and detailed and warm and mellow? What kinds of music do you listen to? Do you like bass and/or high frequency extension? What have you already listened to? The best way that you'll get your questions answered is to listen to several systems (and ideally get to audition some electronics in your room with your speakers) and see what you like and don't like. There are literally hundreds of products that will likely sound great.
As for your tubed DAC under $1200 question, a couple options I can think of off the top of my head:
MHDT Paradisea or Havana (they get a lot of buzz, but I haven't heard one)
California Audio Labs Alpha (available used $400-500)
Good luck,
Michael
So, not knowing your listening preferences and what you've already heard, I would naively come up with a system such as:
Electrocompaniet ECD-1 DAC
Plinius 9200 integrated amp
The Plinius should be able to drive the speakers and you've simplified your setup and possibly reduced your cost by using an integrated, at the expense of a little flexibility.
We really need more information to make an informed decision, though. What kind of sound do you like? Lean and detailed and warm and mellow? What kinds of music do you listen to? Do you like bass and/or high frequency extension? What have you already listened to? The best way that you'll get your questions answered is to listen to several systems (and ideally get to audition some electronics in your room with your speakers) and see what you like and don't like. There are literally hundreds of products that will likely sound great.
As for your tubed DAC under $1200 question, a couple options I can think of off the top of my head:
MHDT Paradisea or Havana (they get a lot of buzz, but I haven't heard one)
California Audio Labs Alpha (available used $400-500)
Good luck,
Michael