Peer review: Powersoft X4 Amplifier Features 20/01/2016 Powersoft X4 Amplifier reviewed by Alex Seah, project manager at AV World Engineering (Singapore).The Powersoft X Series consists of the X4 and X8 power ampli?ers that have four and eight channels respectively. The X4 series evolves the concept of the ampli?cation platform though the integration of a worldwide compatible power-box and a full feature DSP inside the power ampli?er. The X4’s complete digital audio signal management system is based on ARM Cortex A-8 processor and TI C6000 DSP platform. It provides non-boolean routing and mixing, multi-stage equalisation with raised-cosine, IIR and FIR ?lters, delay up to 4s in input processing and 200ms for time alignment, gain and polarity adjustment, crossover, peak limiters, TruePower limiters and Active DampingControl. Read the full article at InAVate Active. If you are not already registered then follow the quick sign up for your free subscription and immediate access to this article and the InAVate archive.