Manley MIC EQ 500 Combo Owner's Manual

Contents

Manley MIC EQ 500 Combo Owner's Manual Manual pdf 12 page image

CHASSISGROUNDMIC PRE INMIC PRE OUTLINE INLINE OUTFUSE2 AMPSLO-BLOCIRCUIT100 / 120 / 240 VAC(AS INDICATED)50 / 60 HZOPERATIONREPLACE WITHSAME TYPEAND RATINGWARNINGTO REDUCE THE RISK OF FIRE OR SHOCKDO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE .RISK OF ELECTRIC SHOCK - DO NOT OPENREFER SERVICING TO QUALIFIED PERSONNEL.REAR PANELA B C D E FGpage 12A FUSE HOLDER Unplug AC. Replace with 2A SLO-BLO fuse only.B GROUND TERMINALS Different studios have different grounding practices. This unitallows the user access to chassis and circuit grounds on mini binding posts. Typically thecircuit ground is connected to the chassis ground with the included "strap" and ground is viathe AC third pin. Some studios prefer to run a separate ground wire to each piece of gear andthe separate terminals will help. Chassis ground will often be via the rack rails. The text bookssay that there should be one and only one connection to ground for each piece of equipment.This can be the third pin AC ground (most legal and safe) or the rack rails, or the audioshields, or a dedicated ground wire. Many studios cut every shield from either all sends or allreturns except mic lines. This unit is transformer isolated at all inputs and outputs so it will bemost "forgiving" of ground problems. Internally, the differential circuit topology cancelssupply hum too.C LINE OUTPUT (XLR) . TRANSFORMER ISOLATED AND BALANCED. Pin 1 = chassisground, Pin 2 = hot or + on all XLRs, Pin 3 = low. To feed unbalanced gear you can connectpin 1 to pin 3 if needed.D LINE IN (XLR). TRANSFORMER ISOLATED AND BALANCED. Input impedance is1000 ohms which may be a difficult load for some semi-pro gear. Most pro equipment caneasily drive 600 ohms (even more difficult) as is found in a lot of vintage gear.E MIC PRE OUT (XLR). TRANSFORMER ISOLATED AND BALANCED. This can beused to feed a tape machine directly or to feed a compressor.F MIC PRE IN (XLR). TRANSFORMER ISOLATED AND BALANCED. Input impedanceis 2400 ohms which seems to be the standard and matches well with low imedance mics (150ohms). Phantom is 48 volts.G IEC MAINS CONNECTOR. Used with AC cable correctly wired for your countriesvoltage. Different Mains AC Voltages require internal re-wiring or transformer replacementthat should be done by the dealer or Manley Labs.