I would highly recomment the Muse model 3. I have had a lot of changes in my 2 channel system over the last several years. The preamp and the speakers haev been the only steady pieces. Actually, the speakers are going next week when my new ones arrive. If you would like, read the audioreview articles. One of them is mine. Overall it is a very good preamp. To boot, it is by far the least expensive part of my 2 channel setup, and is right up there with everything else.
Its attributes: minimal sonic character (that's good). It's user friendly and does have the HT bypass. The guys at Muse are very helpful and knowledgeable. Very honest guys too.
I used to have an Adcom many years ago and it really is no comparison. I think the Muse components are less popular because, as stated above, they don't spend a lot on advertising. It keeps the price down. Hope this was helpful,
Todd