User manual MCINTOSH 20W2

[. . . ] When a cart is used, use caution when moving the cart/ apparatus combination to avoid injury from tip-over. Unplug this apparatus during lightning storms or when unused for long periods of time. Servicing is required when the apparatus has been damaged in any way, such as power- To prevent the risk of electric shock, do not remove cover or back. No user-serviceable parts inside. supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. [. . . ] Attach the previously prepared bare wire cable ends into the banana plugs and secure the connections. Refering to Figure B, connect the Figure A Loudspeaker hookup cables with banana plugs into the hole at the top of the terminal to the 20W2 Negative Output Terminal and Positive Output Terminal indentified as 2 (ohms), 4 (ohms) or 8 (ohms) connection to match the impedance Figure B Figure A of the Loudspeaker, being careful to observe the correct polarities. Note: The illustration in Figure 5 is connections for 8 (ohms) Loudspeakers. Figure 1 8 How to Connect If the Loudspeaker's impedance is in-between the available connections, use the nearest lower impedance connection. Refer to "General Information" Note 4 on page 3 for additional information. 7. Attach the Terminal Connections Covers to the 20W2 Rear Panel with the previously removed Screws. Connect the 20W2 power cord to an active AC outlet. WARNING: Loudspeaker terminals are hazardous live and present a risk of electric shock. For additional instruction on making Loudspeaker Connections contact your McIntosh Dealer or McIntosh Technical Support. 10. Connect the Loudspeaker hookup cables to the 20W2 Negative Output Terminal and Positive Output Terminal indentified as 2 (ohms), 4 (ohms) or 8 (ohms) connection to match the impedance of the Loudspeaker, being careful to observe the correct polarities. Insert the spade lug connector or prepared section of the cable end into the terminal side access hole, and tighten the terminal cap until the cable is firmly clamped into the terminals so the lugs or wire cannot slip out. Locate the Terminal Connections Covers from the inside of the 20W2 shipping carton. Insert the just prepared Loudspeaker hookup cables thru the cover openings, one cover for each channel. Refer to figure 6. Cover Openings Cover Openings Figure 7 Figure 8 If the Loudspeaker's impedance is in-between the available connections, use the nearest lower impedance connection. Prepare the Loudspeaker Hookup Cable for attachment to the 20W2 Power Amplifier: Bare wire cable ends: Carefully remove sufficient insulation from the cable ends, refer to figures 2, 3 & 4. Attach the previously prepared bare wire cable ends into the banana plugs and secure the connections. Refering to Figure B, connect the Figure A Loudspeaker hookup cables with banana plugs into the hole at the top of Figure 2 Figure 3 Figure 4 10 How to Connect for Bi-Amp the terminal to the 20W2 Negative Output Terminal and Positive Output TerFigure B minal indentified as 2 Figure A (ohms), 4 (ohms) or 8 (ohms) connection to match the impedance of the Loudspeaker, being careful to observe the correct polarities. Cover Openings Cover Openings If the Loudspeaker's impedance is in-between the available connections, use the nearest lower impedance connection. Refer to "General Information" Note 4 on page 3 for additional information. Note: The illustration in Figure 5 is connections for 8 (ohms) Loudspeakers. Cover Screws Figure 6 (Outside USA and Canada) Cover Screws 14. Attach the Terminal Connections Covers to the 20W2 Rear Panel with the previously removed Screws. Connect the 20W2 power cord to an active AC outlet. WARNING: Loudspeaker terminals are hazardous live and present a risk of electric shock. For additional instruction on making Loudspeaker Connections contact your McIntosh Dealer or McIntosh Technical Support. 10. Attach the Terminal Connections Covers to the 20W2 Rear Panel with the previously removed Screws. Connect the 20W2 power cord to an active AC outlet. WARNING: Loudspeaker terminals are hazardous live and present a risk of electric shock. For additional instruction on making Loudspeaker Connections contact your McIntosh Dealer or McIntosh Technical Support. 13. Connect the Loudspeaker hookup cables to the 20W2 Negative Output Terminal and Positive Output Terminal indentified as 2 (ohms), 4 (ohms) or 8 (ohms) connection to match the impedance of the Loudspeaker, being careful to observe the correct polarities. [. . . ] Power Guard eliminates the possibility of ever overdriving the amplifier into clipInput Test Signal ping. An overdriven amplifier can produce both audible and inaudible distortion levels exceeding 40%. The audible distortion is unpleasant to hear, but the inaudible ultrasonic distortion is also undesirable, since it can damage Figure 19 valuable loudspeaker system tweeters. You will never experience the harsh and damaging distortion due to clipping. [. . . ]