TECHNISCHER SERVICE

T: +43 (0)1 979 00 00-0
service@grothusenav.com

Gerhard Vonwald

Leitung Technischer Service
T: +43 (0)1 979 00 00-51
M: +43 (0)664 33 979 38
gerhard.vonwald@grothusenav.com

Josef Hollaus

Audio Service
T: +43 (0)1 979 00 00-55
josef.hollaus@grothusenav.com

Harald Schmidt

Video Service
T: +43 (0)1 979 00 00-58
harald.schmidt@grothusenav.com

Matthias Weninger

Consumer Audio Service
T: +43 (0)1 979 00 00-53
matthias.weninger@grothusenav.com

Robert Stefan

Consumer Audio Service
T: +43 (0)1 979 00 00-57
robert.stefan@grothusenav.com

Gottfried Pories

Sound System Designer, Audio Service
T: +43 (0)1 979 00 00-52
M: +43 (0)664 33 979 39
gottfried.pories@grothusenav.com