In the process of *finally* getting my 2-channel setup running again I've been trying out different gear, some of which I'll share down the road. For my 2-channel I bought a Schiit Saga+ early on in anticipation of the new setup. Then lo and behold Schiit released the Saga 2 last week. The Saga+ is basically a tube buffer using 6ns7 and equivalent. The Saga 2 is Class A solid state w/ passive plus low and high gain levels, single ended inputs but both single ended and true balanced out (!). For only $280. That was too good to pass up. Having spent some time cycling thru the Saga+ and Saga 2 as 2-channel preamps here are my thoughts:
Saga+ - Replaced the stock tube they provided. It sounds fine, a bit mellow and inoffensive but flat and unengaging in my setup. There are a lot of options of course but I settled on the Linlai E-6SN7. The Linlai brings 3D pop and dimensionality and a more clearly dilineated soundstage at the expense of a little of the warmth present in the stock tube. This is exactly what I was looking for in a tube-based pre (yes I know the Saga is a hybrid). That you can get this with low noise/quiet background and resistor relay volume control for <$500 incl. the Linlai is really impressive.
The Saga 2 has a somewhat similar presentation, which I attribute to the Class A design. It's smooth, slightly rounded at the edges, clearly defined imaging and soundstage. Not quite the 3D pop of the Saga+ but voices and instruments do sound a little more natural. I think it also has a blacker background but not by much. The two gain levels and balanced out are a real nice touch too.
For some contrast I also auditioned the Topping Pre90 Preamp. It's very popular amongst a certain set. It has .000000001% distortion or something. A black hole from which sound emerges by the hype. Personally I found it dry, flat, and analytical to a fault. I didn't hear any more detail than was present in the Shiits. The Pre90 is ~$600.
I'm not sure which of the Schiits I'll end up keeping. The Saga+/Linlai combo is really doing it for me right now. What makes Schiit hard to ignore is that really affordable high quality tube and Class A preamps are really hard to find. I am not a fan of all their products - but the ones that aim for a warmer tone like Asgard 3, Saga+ and Saga 2 I think are a great value.

