Cloud Electronics MA40F Mini Mixer Amplifier - 40WThe MA40F is a mini amplifier providing 40W Mono Output at 4 (low impedance). It is fitted with a paging microphone input with access contacts, a useful 70 100V line input option, a further two line inputs and a facility port input option allowing connection of the LM 2 wall input module and the new Cloud BT 1F Bluetooth Audio Wireless input module. ENERGY STAR Tested & Certified providing extensive power saving and energy consumption saving features