MMA-130 ELA Mono Class D Mixer Amplifier: The MMAâ130 is a Class D mono mixer amplifier with 30 W (8â¦) or 15 W (4â¦). The device was developed according to the specifications of a crane manufacturer operating worldwide in our house and is thus perfectly adapted to the application in the cab of the crane driver. The MMAâ130 is used for the announcements of the crane operator to persons within the swivel range of the boom. Due to the compact dimensions of the amplifier, which are adapted to the dimensions of a car DIN-slot, and the power supply of 12-24 V, there are many other possible applications in the area of vehicle manufacturers.The temperature range required for the application range from -25°C to +50°C can be displayed without any problem due to the selected components.This text is machine translated.