Mackie Onyx 2480 Owner's Manual - Page 21

Owner's Manual Rear Panel This is where all the connections are made to the Onyx 80 Series (except the headphones and lamps). 67. MIC Input This is a female XLR connector, which accepts a balanced microphone input from almost any type of microphone. The microphone preamps feature our new Onyx design, with higher fidelity and headroom rivaling any standalone mic preamp on the market today. The XLR inputs are wired as follows: Pin 1 = Shield or ground Pin 2 = Positive (+ or hot) Pin 3 = Negative (- or cold) 69. INSERT These 1/4" TRS jacks provide a send and return point for each channel. Use the INSERT jacks to connect serial effects devices such as compressors, equalizers, de-essers, or filters to each individual channel. The INSERT points are after the GAIN, Polarity, 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: ring tip sleeve (TRS plug) SEND to processor "from tip" 68. LINE Input This is a 1/4" TRS connector, which accepts a balanced or unbalanced line-level input signal from almost any source. When connecting a balanced signal to the LINE inputs, wire them as follows: Tip = Positive (+ or hot) Ring = Negative (- or cold) Sleeve = Shield or ground When connecting an unbalanced signal, wire them as follows: Tip = Positive (+ or hot) Sleeve = Shield or ground this plug connects to one of the mixer's Channel Insert jacks. "to 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) Besides being used for inserting external devices, these jacks can also be used as channel direct outputs; post-GAIN, post-LOW CUT, and pre-EQ. This is an unbalanced direct out, in contrast to the DIRECT OUTS on the rear panel, which are balanced direct outputs, postGAIN, post-INSERT, and pre-EQ. 8 INSERT CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN REPLACE WITH THE SAME TYPE FUSE AND RATING. DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE 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 UTILISE UN FUSIBLE DE RECHANGE DE MÊME TYPE. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE SERIAL NUMBER MANUFACTURING DATE 7 INSERT 6 INSERT 5 INSERT 4 INSERT 3 INSERT 2 INSERT 1 INSERT LINE LINE LINE LINE LINE LINE LINE LINE MIC ONYX MIC PRE MIC ONYX MIC PRE MIC ONYX MIC PRE MIC ONYX MIC PRE MIC ONYX MIC PRE MIC ONYX MIC PRE MIC ONYX MIC PRE MIC ONYX MIC PRE DIRECT OUTS (BALANCED) CHAN 1-8 Owner's Manual 21