I owned both and sold the Altos to get the Utopias. The Utopia filled my room better with mids and bass, however having a bright room they eventually became very fatiguing, had very simillar results with the Wilson Sophia too. The Altos just didnt sound right to me, very lean and dissapointing bass. Could have been my associated gear or just poor accoustics in my room but they didnt perform to my expectations. Im much happier with scanspeak or seas tweeters, both the Audes Orpheus and my current Focus FS88's were more pleasing to my ear.