Qphonics (formerly KLOTZ DIGITAL) VARIZONE is being used in airports, train stations, conference venues, government offices, casinos and hotels around the world. This revolutionary PA technology offers unprecedented flexibility, configurability, and intelligibility.
Find out more about VARIZONE!
Newest Installation
Sport Venues in Coratia with VARIZONE
Qphonics VARIZONE digital PA system was chosen for two 
sport venues in Croatia. Both sport venues were built for the men's handball world championship which took place earlier this year.
[more 
]
Now we are Qphonics!
KLOTZ DIGITAL AG has changed its name to Qphonics AG.
Our headquarters registration number 126091 is remaining the same.
All contractual and financial obligations, as well as claims towards and from the company remain untouched and unchanged.
Latest Product Update
New software release of the VARIZONE Configuration GUI
The beta version of VAB-Line Software 1.2 has been released. Amongst other things, it brings new features and solutions such as: 
digital Ambient Noise Sensing (ANS), and remote volume control via paging stations, or GPIs.
[more ]