If you want something a bit less polite than Audio Note, the Atmasphere linestages and preamps are quite good--very clean, clear, and not overly warm, yet they don't sound harmonically bleached out.
You did not specify what features you require in the linestage. To me, remote control is not just a convenience, it is a necessity. There tends to be a fairly small range of volume one wants to listen to music, and that setting can change even within a single recording. It is quite hard to tell when the volume is right unless you can do it with remote control while sitting in the ideal spot. With tube gear in particular, a balance control is essential. The system will inevitably develop minor channel imbalances and one can go mad chasing down the cause or instantly cure the issue with judicious use of a balance control.
I liked what I heard and saw with the Backert linestages--nice sound, simple design, remote volume control, balance control, and serious people backing the product.