The power amplifier modules in the 4-Acoustic Live series were developed in collaboration with German experts in digital signal processing (DSP) and Class-D power amplifiers. The goal was to develop absolutely reliable modules that deliver the best possible performance in terms of sound quality, volume, and ease of use. This collaboration has paid off: Today, we can equip our speakers with state-of-the-art power amplifier modules. This enables us to offer a product that meets the strict quality standards of the professional audio industry.