Mackie Onyx 1620 Owner's Manual - Page 19

Owner's Manual 46. Power Receptacle 50. AUX SEND 1-4 This is a standard 3-prong IEC power connector. Connect the detachable linecord (included in the box with your Onyx 1620) to the power receptacle, and plug the other end of the linecord into an AC outlet. The Onyx 1620 has a universal power supply that can accept any AC voltage ranging from 100 VAC to 240 VAC. No need for voltage select switches. It will work virtually anywhere in the world. That's why we call it a "Planet-Earth" power supply! This also means that it is less susceptible to voltage sags or spikes, providing greater electromagnetic isolation and better protection against AC line noise. 47. TALKBACK MIC This is where you plug in your external talkback microphone if you need to have one. This female XLR connector has +48 VDC phantom power always applied, so you can use dynamic or condenser microphones. Note: Almost all dynamic microphones can be used with phantom power, but you might want to check the documentation that came with your microphone to be sure. 48. RIGHT/LEFT MAIN OUTPUTS These 1/4" TRS output connectors provide balanced or unbalanced line-level signals for connecting to the inputs of effects devices or stage monitor amplifiers. 51. AUX RETURN 1-4 These 1/4" TRS input connectors accept balanced or unbalanced line-level stereo signals from an external processor or other device. The stereo AUX RETURNS use jack normalling, like the stereo inputs on channels 9-16. If a signal is plugged into the LEFT (MONO) side and nothing is plugged into the RIGHT side, the signal is automatically connected to both LEFT and RIGHT sides. As soon as something is plugged into the RIGHT side, the normalled connection is broken and the LEFT and RIGHT inputs become stereo inputs (LEFT goes to the LEFT MAIN OUT and RIGHT goes to the RIGHT MAIN OUT). 52. CHANNEL INSERT These 1/4" TRS jacks provide a send and return point for channels 1-8. Use the CHANNEL INSERT jacks to connect serial effects devices such as compressors, equalizers, de-essers, or filters to each individual channel. These male XLR connectors provide a balanced linelevel signal that represent the end of the mixer chain, where your fully mixed stereo signal enters the real world. Connect these to the inputs of your main power amplifiers, powered speakers, or serial effects processor (like a graphic equalizer or compressor/limiter). It provides a fully balanced signal that is the same as the 1/4" TRS MAIN OUT jacks on the front panel. The INSERT points are after the GAIN and Low Cut controls, but before the EQ and Fader controls. The send (tip) is low-impedance, capable of driving any device. The return (ring) is high-impedance and can be driven by almost any device. Special insert cables are available, specially designed for this kind of insert jack. They are wired as follows: 49. MAIN OUTPUT LEVEL ring tip sleeve (TRS plug) SEND to processor "tip" When this switch is out (+4 dB), the XLR MAIN OUTPUTS provide a +4 dBu line-level signal. When the switch is pushed in (MIC), the signal is attenuated by 40 dB to a microphone level. You can connect the XLR MAIN OUTPUTS to the microphone inputs of another mixer, providing a submix for keyboards or drums, for example, in a live sound application. Note: You can safely plug this output into a microphone input that provides 48 V phantom power. this plug connects to one of the mixer's Channel Insert jacks. "ring" RETURN from processor Tip = Send (output to effects device) Ring = Return ( input from effects device) Sleeve = Common ground (connect shield to all three sleeves) POWER ON ~100-240 VAC 50-60 Hz 55W TALKBACK MIC +48V RIGHT MAIN LEFT BALANCED BALANCED +4dB MIC MAIN OUTPUT LEVEL AUX SEND 2 1 4 3 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR DESIGNED BY MACKOIDS IN WOODINVILLE, WA, USA "MACKIE" & "ONYX" ARE TRADEMARKS OF LOUD TECHNOLOGIES INC. • COPYRIGHT ©2003 CHANNEL INSERTS ( PRE-FADER / PRE EQ TIP SEND / RING RETURN ) 8 7 6 5 4 3 2 1 4 RIGHT LEFT AUX RETURNS 3 RIGHT LEFT 2 RIGHT LEFT 1 RIGHT LEFT LISTED COMMERCIAL R AUDIO EQUIPMENT 65HJ SERIAL NUMBER MANUFACTURING DATE Owner's Manual 19