Linn DS
To my ears, this is the best thing they do. They avoid sounding bright and forward, but still remains lively and engaging.....the most analogue sounding of the digital sources that I've heard.
The DSMs are more versatile and forward thinking than most, given our AV / 2 channel type systems.
Linn Amps
They use their own form of Class D.
For years I found them a bit cold, analytical and uninvolving, but in recent times, I heard them with the Kef R Series and have had to eat my words somewhat.
Linn Speakers
I find them a bit Meh.........they are pleasant enough, but unexciting and unexceptional.
Linn System
IME. A Linn system does gel well enough, but is expensive for the sound it gives. There are huge Linnie fans, who wouldn't buy anything else.
It gives a very detailed, insightful and somewhat musical sound, but it doesn't draw me into the music like a Class A or Valve based system
There is a big jump in quality when you go Active, but also a big price increase.