The power output section of the PLM™ Powered Loudspeaker Management™ system starts with the proven foundation of Lab.gruppen’s newest touring amplifier platform, the FP+ Series. And then takes it up a notch.
All essentials of the FP+ Series are packed inside. The output stage is Lab.gruppen’s patented Class TD®, which couples the efficiency of Class D topologies to the sonic purity of Class B designs. The Regulated Switch Mode Power Supply (R.SMPS™) provides stable rail voltages even with significant fluctuations in line voltage. Other features in common with the FP+ Series include extraordinary power density, the Intercooler® copper-finned cooling system, Power Average Limiting (PAL) to prevent tripping of mains breakers, and a full suite of protection features.
From there, the PLM Series steps forward into the digital world. Both input gain and level attenuation are set in DSP for greater precision and software GUI control. Also, Lab.gruppen’s proprietary Voltage Peak Limiter (VPL™) – here renamed the Inter-Sample Voltage Peak Limiter (ISVPL™) – is implemented in the digital domain for increased accuracy.