Johann Sfaellos, the club maestro is back with 400Soundbar, and a new bag of tricks in his well tailored sleeves. 400SoundBar is located in the Minneapolis Warehouse District. The flashy club owner opened other Warehouse District draws, 414 soundbar in 2007 and the Lounge in 1995. During 20 years of managing clubs and consulting on their design—a career that began with managing Prince’s Glam Slam outposts in Los Angeles, Miami, and Minneapolis has developed into the premier club connoisseur in the cities.