PURIFI

About this resource

PURIFI develops loudspeaker transducers and power-amplifier technology from Roskilde, Denmark. Its co-founders include Bruno Putzeys, Lars Risbo and Peter Lyngdorf. The company’s biographies credit Putzeys with UcD and Ncore amplifier designs, Risbo with founding Toccata Technology and work in digital signal processing, and Lyngdorf with audio-company ownership and digital room-compensation development. These histories explain the technical and business backgrounds brought to PURIFI. ^{[1] [2] [3]}

The company names USHINDI as its transducer technology and EIGENTAKT as its amplifier technology. It describes an approach based on understanding nonlinear behavior, constructing mathematical models and verifying them through hardware and measurements. For amplification, it points to control theory and a modeled topology; for drivers, it discusses addressing limitations in conventional transducer designs. Its comparative performance language remains vendor claims rather than independent findings in this profile. ^{[1] [2] [3]}

The transducer and amplifier sections address separate stages of reproduction: a driver converts electrical energy into acoustic output, while an amplifier supplies the electrical signal that drives it. PURIFI describes virtual prototyping as part of its development process, followed by hardware verification. It says listening results can prompt changes to its measurement methods when the two disagree, linking its mathematical models to subsequent evaluation rather than treating simulation alone as the finished design. ^{[1] [2] [3]}