Quadral Signum: RiCom SIGMA tweeter and titanium-coated diffusers
The series of budgetary acoustics Signum from the German company Quadral has so far included four models: the Signum 20
Read more
Quadral
Loxone acquires Quadral to develop sound quality automation systems
Austrian company Loxone has announced that it will complete the acquisition of quadral GmbH & Co. in early 2021. KG,
Read more