Mackie 1202-VLZ Pro Owner's Manual - Page 13

CHANNEL INSERT (Channels 1-4 ) These jacks, on the back of the 1202-VLZ PRO, are where you connect serial effects such as compressors, equalizers, de-essers, or filters . Since most people don't have more than a few of these gadgets, we've included inserts for just the first four channels. If you want to use this kind of processing on channels 5 through 12, simply patch through the processor before you plug into the 1202-VLZ PRO. The CHANNEL INSERT points are after the TRIM and LOW CUT controls, but before the channel's EQ and GAIN controls. The send (tip) is low-impedance (120 ohms), capable of driving any line-level device. The return (ring) is high-impedance (over 2.5k ohms) and can be driven by almost any device. Insert cables must be wired thusly: ring tip sleeve (TRS plug) SEND to processor "tip" 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) Besides being used for inserting external devices, these jacks can also be used as channel direct outputs; post-TRIM, post-LOW CUT, and pre EQ. In fact, Mackie mic preamps have become so famous that people buy these mixers just to have four of these preamps in their arsenal. Here's three ways you can use the CHANNEL INSERT jacks: AUX RETURNS This is where you connect the outputs of your parallel effects devices (or extra audio sources). These balanced inputs are similar to the stereo LINE IN inputs (without EQ, Aux Sends, Pan, Mute, and Solo). The circuits will handle stereo or mono, balanced or unbalanced signals, either instrument level, -10dBV or +4dBu. They can be used with just about any pro or semipro effects device on the market. To learn how signals are routed from these inputs, see . One Device: If you have just one parallel effects device, use STEREO AUX RETURN 1 and leave STEREO AUX RETURN 2 unplugged. That way, the unused AUX RETURN 2 level control can be used to feed AUX RETURN 1 to your stage monitors, via the EFX TO MONITOR switch . Mono Device: If you have an effects device with a mono output (one cord), plug that into STEREO AUX RETURN 1, LEFT/ MONO, and leave AUX RETURN 1, RIGHT, unplugged. That way the signal will be sent to both sides, magically appearing in the center as a mono signal. This won't work with AUX RETURN 2 - you'll need a Y-cord. R ELECTRIC SHOCK, DO NOT NOT REMOVE COVER. G TO QUALIFIED PERSONNEL. OUVRIR ECHANGE DE MÊME TYPE. REMPLACER LE FUSIBLE SERIAL NUMBER MANUFACTURING DATE MIC RANGE MIC PREAMPLIFIERS ARE PROPRIETARY TO MACKIE DESIGNS, INC. CHANNEL INSERTS ( PRE-FADER / PRE EQ TIP SEND / RING RETURN ) 4 3 2 1 MONO PLUG Channel Insert jack Direct out with no signal interruption to master. Insert only to first "click." N WOODINVILLE, WA, USA RADEMARKS OR REGISTERED TRADEMARKS D THE "RUNNING MAN" FIGURE • PATENT PENDING MONO PLUG Channel Insert jack Direct out with signal interruption to master. Insert all the way in to the second "click." STEREO PLUG Channel Insert jack For use as an effects loop. (TIP = SEND to effect, RING = RETURN from effect.) 13