41. IMPORTANT NOTECongratulations! You have acquired the result of painstaking design and manufacturing.Thank you for having chosen our CA40 micro amplifier.In order to get the optimum operation and efficiency from your product, it is VERYIMPORTANT - before you plug anything - to read this manual very carefully and take seriously intoaccount all considerations specified within it.We strongly recommend that its maintenance be carried out by our Authorised TechnicalServices.1.1. Compliance with international standardsThe CA40 micro amplifier complies with the following international standards: EN55103-1 Electromagnetic Compatibility.Product family standard for audio, video, audio-visual and entertainment lighting controlapparatus for professional usePart 1: Emission EN55103-2 Electromagnetic Compatibility.Product family standard for audio, video, audio-visual and entertainment lighting controlapparatus for professional usePart 1: Immunity EN60065 Audio, video and similar electronic apparatus. Safety requirementsComplying with the requirements of directives 73/23/EC and 2004/108/EC2. INTRODUCTIONThe CA40 is a very small stereo amplifier with numerous remotely controlled functions (RS-232serial port, infrared receiver, 0-10 VDC remote control port), and is ideal for integrating audiovisualapplications with other devices: educational classes, meeting rooms and multimedia presentations,business premises, etc.Main characteristics: 2 x 20 W RMS @ 4 amplifier Universal external power source AUTO STANDBY function: in the absence of an audio signal the unit automatically goes intoSTANDBY mode, minimising power consumption Lightweight, silent, high-performance amplifier (fan-free convection cooling) Suitable for stereo, parallel, and bridged mono operation 1 balanced microphone input, with high quality preamplifier, Phantom power supply, noise gateand “talkover” function or priority over the rest of the input 2 stereo lines (not balanced) 2-band independent tone control (Bass, Treble) for the microphone in-jack and 1&2 line-inconnection. Auxiliary output for liaison with other amplifiers or external audio devices Local control by digital rotary knob (“encoder”) Remote control by infrared remote control Remote control by WPmVOL or WPmVOL-SR (0-10 VDC) wall panel RS-232 control port MUTE port to silence the entire unit by closing external contact