I've owned a Moonriver 404 for almost one year now. I think I was one of the first in the USA to buy one. I took a chance on it because of its understated and retro handsome looks. Also, the few reviews I read about its sound quality seemed very promising. I'm glad I took that chance. This is hands down the best integrated amplifier that I've heard in its price range. When it arrived I compared it to three other amps I owned. The Naim Atom, Sugden A21 Signature and LFD LE IV. All were driving Harbeth P3ESR's. Before the Moonriver arrived the LFD was the reigning champ. I never thought anything near its price would ever beat its sound quality, especially with it matching up so well with my Harbeths. Well, the Moonriver clearly won out. It makes the LFD seem boring by comparison. The 404 has clarity but without brightness. It has musicality. It is fast and rhythmic like the Naim. Sure, some might prefer the LFD's more laid back approach. It does have smoothness. But after listening to the 404 for months it's almost impossible for me to go back to the other amps. They almost seem broken in comparison. The Moonriver is just more exciting and more involving. I simply enjoy listening to music more through it. One last note. I bought it with the MM phono stage installed. I won't tell you that it's better than a $1000+ phono preamp. However, I will say it is the best built in phono stage I've yet heard in an integrated amplifier. I hope in this mini review I didn't come across as an advertisement for this amplifier. I get nothing for saying positive things for it. I am just truly excited about it and I want others to try and listen to the 404 if they can. I can't imagine people not liking it. In my many years as an audiophile I think it is truly a special amp and one I would feel comfortable recommending.Â
