The Boulder sound? Well, the best way to describe it is that it has no sound. Boulder amps just play music, and nothing else. There's no wow factor, nothing sticks out. The first time I auditioned them, I sat down with a friend in a sofa and played some nice CDs. We sat there for well over an hour just listening, talking about the music. Suddenly I told my mate, 'Hey, this sounds really, really good doesn't it?'. He nodded his head and that was that.
To put it in technical terms, I'd have to say exceptionally natural, very detailed and completely effortless at any volume. Seductive too, you can get addicted to it pretty easily. With a good record playing you quickly forget that you're listening to a record. Compared to some other top gear I've found that Boulder does not paint a very big soundstage, but what it does it does very well. This is a matter of preference I believe. When I've heard Boulders, they bring the music to my room, whereas for example MBL brings you to the music (i.e. the room boundaries disappear). The difference is very noticeable, it's up to you to decide what you prefer. :) This might have to do with speaker synergy though, you may experience it differently.
To put it in technical terms, I'd have to say exceptionally natural, very detailed and completely effortless at any volume. Seductive too, you can get addicted to it pretty easily. With a good record playing you quickly forget that you're listening to a record. Compared to some other top gear I've found that Boulder does not paint a very big soundstage, but what it does it does very well. This is a matter of preference I believe. When I've heard Boulders, they bring the music to my room, whereas for example MBL brings you to the music (i.e. the room boundaries disappear). The difference is very noticeable, it's up to you to decide what you prefer. :) This might have to do with speaker synergy though, you may experience it differently.