powersoft X4 - 4.3. Class-D Output Stage

2 | X Series | User guide
intuitive interface for parameter adjustment, a comprehen-
sive control over the digital audio processing and complete
real-time monitoring of the system performance.
The integrated WiFi connection permits the X8 and X4
to be accessed and managed via any smartphone or tablet
through a user interface specically developed for local
monitoring.
6 : 4.3. Class-D output stage
Even more compact and reliable, X8 and X4 Class-D
output stages deliver high output power and pristine sound,
matching almost any load impedance – starting from 2 Ω
load – and hi-Z distributed lines.
Years of study and engineering of Class-D yield to the
development of innovative features and edge technologies
that improve the efciency and the reliability of Powersoft
ampliers.
The legendary Powersoft Class-D output stage ef-
ciency takes advantage of the back-EMF recycling technol-
ogy, that stores the reactive energy coming back from the
loudspeakers (usually a big danger for linear ampliers) and
uses it as active output power.