Mackie DL806 and DL1608 Reference Guide
20
Power Switch
Pressthetopofthisrockerswitchintoturnthemixeronand
press the bottom of this switch to turn the
mixer o.
Asageneralguide,themixershouldbeturnedonrst,beforeanyexternalpowerampliers
orpoweredspeakers.Assuch,itshouldalsobeturnedolast.Thiswillreducethepossibility
ofanyturn-onorturn-othumpsinthePA.
Power LED
This LED will illuminate green when the mixer is turned on
.Ifitdoesnotturnon,conrmthatThePower
Blockandlinecordareconnectedcorrectly(toeachother,themixerandtheACoutlet),thelocalACmains
supply is active and that the power switch is on.
Phantom Power Switch
Pressthetopofthisrockerswitchinifanymicrophonerequiresphantompower.(Alwayschecktheposition
ofthisswitchbeforeconnectingmicrophones.)Thisisaglobalswitchthataectsallmicchannels’XLRjacks
at once.
Pressthebottomofthisswitchintoturnthephantompowero.
Most modern professional condenser mics require 48V phantom power which lets the mixer send
low-currentDCvoltagetothemic’selectronicsthroughthesamewiresthatcarryaudio.(Semi-pro
condensermicsoftenhavebatteriestoaccomplishthesamething.)“Phantom”owesitsnametoan
abilitytobe“unseen”bydynamicmics[ShureSM57/SM58,forexample],whichdonotneedexternal
power and are not aected by it, anyway.
Neverplugsingle-ended(unbalanced)orribbonmicrophonesintothemicinputjacks
when phantom power is on. Do not plug instrument outputs into the mic XLR input jacks
with phantom power on unless you know for certain that it is safe to do. When phantom
power is engaged, be sure that the master fader is down when connecting microphones
tothemicinputstopreventpopsfromgettingthroughthePA.
It is not a good idea to enable the phantom power unless it is actually needed. Line-level
sources may be particularly unhappy when they are subjected to 48V phantom powering.
Manymusicalinstrumentampsandkeyboardswith“directoutputs”tthisdescription.
It takes approximately 15 seconds for the phantom power to shut o completely.
Do not add or remove any inputs until the phantom power LED is completely o
or mics could be ruined.
DL806 Rear Panel