The D SERIES D 40:4L 4000W Audio Amplifier from Lab.Gruppen features four flexible terminal block output channels, Lake digital signal processing (DSP), Dante digital audio networking, and advanced system integrity monitoring. The D 40:4L is designed as an optimal solution for demanding digitally networked installed sound applications. It's suitable for large venues and environments such as stadiums, arenas, theme parks, performing arts centers, and more.

A key feature of the D 40:4L is Lab.Gruppen's proprietary Rational Power Management (RPM), which allows system integrators to allocate the output power available on each channel for optimum performance with specific load conditions.