Yamaha EMX66M Owner's Manual - Page 18

16 Installation/Connection Installation/Connection Installation The EMX66M uses a forced cooling system with intake on the bottom of the rear panel and exhaust on the top of the rear panel to avoid blocking the heated air flow. Front NO 15cm or less NO Exhaust Front Intake Connection When connecting various devices, be sure to use cables and plugs of the appropriate standard. Use dedicated speaker cables to connect the speakers to the speaker jacks. Speaker connection There are three ways in which speakers can be connected to the EMX66M. The speaker impedance requirement varies depending on how you connect the speakers. Refer to the diagrams below to make sure the speaker impedance will not be lower than the specified value. s When the power amp select switch is set to MAIN-MON or MAIN-MAIN: • Two-channel connection Two 4-8Ω speakers can be connected to either SPEAKERS jack 1 or jack 2 of channels A and B. If you are using speakers rated at 4Ω, the maximum output would be 300W + 300W. • Two-channel parallel connection Two 8-16Ω speakers can be connected to both SPEAKERS jack 1 and jack 2 of channels A and B. If you are using speakers rated at 8Ω, the maximum output would be 300W + 300W. MAIN MAIN MON MAIN MAIN BRIDGE or MAIN MAIN MON MAIN MAIN BRIDGE Two-channel connection B 2 1 SPEAKERS BRIDGE No connection A 2 1 Two-channel parallel connection B 2 1 SPEAKERS BRIDGE No connection A 2 1 4Ω-8Ω Main/Monitor Speaker 4Ω-8Ω Main Speaker 8Ω-16Ω 8Ω-16Ω Main/Monitor Speakers 8Ω-16Ω 8Ω-16Ω Main Speakers EMX66M-Owner's Manual