The d&b audiotechnik D40 is a high-performance, four-channel Class D mobile amplifier designed to drive high-efficiency d&b loudspeaker systems such as the KSL System, V-Series, and Y-Series. It is the mobile counterpart to the 40D installation amplifier, sharing the same digital signal processing (DSP) platform but optimized for touring and rental applications with different connectivity and a ruggedized 2RU chassis.
- Advanced Voltage Management: Optimized to drive high-efficiency speakers where peak voltage is more critical than continuous power, resulting in lower overall power consumption.
- d&b LoadMatch: Automatically compensates for tonal balance issues caused by long speaker cables (up to 70 m / 230 ft) without needing extra conductors.
- Power Factor Correction (PFC): An autosensing switch-mode power supply ensures stable performance even under weak or fluctuating mains conditions.
- Control Interface: Features a 4.3″ color TFT touchscreen and digital rotary encoder on the front panel. It can also be managed via the d&b R1 Remote control software or a web interface.