After initial instruction on the cello from his father, Stephan Haack completed his studies at the Music Academies of Detmold and Vienna with Prof. Gunhild Boie-Düring and Prof. André Navarra. Here he also graduated, passing his concert examinations with honors.
In 1978 he was a double prize winner at the International Jeunesses Musicales Competition in Belgrade.
For Stephan Haack, chamber music always formed the core of his activity, and so this member of the Joachim Quartet has performed for over 10 years in any number of countries in Europe, Asia, Africa and in the United States.
Here he made several radio and television recordings as well as CD productions (winning, inter alia the 1981 German Recording Prize).
He has also concertized with equal success in tandem with pianist Michaela Pühn as the DUO HAACK-PÜHN as well as with the Philharmonic String Sextet of Munich.
Since 1990 he has been on the faculty at the Munich Academy of Music and Theatre, and since 2004 likewise teaches at the Detmold Music Academy. Stephan Haack also gives a number of master classes and teaches at festivals as well as the Federal Chamber Music Courses sponsored by the German Music Council.
After an initial orchestral position as deputy principal cellist in the Lower Saxon State Opera Orchestra in Hanover, Stephan Haack moved on in 1988 to the same position with the Munich Philharmonic. Since the founding of the Super World Orchestra in 1999 in Tokyo, an ensemble made up of musicians from major orchestras world-wide, he is a regular member and principal violoncellist.