12
Working withapartner,onein thelisteningposionandone attheRELmanipulang thecontrols, isthe
mosteffecveand efficientwayto setupthe REL.Ifworkingalone, theinialstepsintheset-upcan bevery
effecvelycarriedoutfromthelocaonofthe REL.Tryingto ignore allothermusicin thetrack,listenfor
thebassdrum anditseffecton thelisteningroom.
Phase Orientaon:Onceinthecorner phasecanbeadjusted.This may bethe singlemostcrical step,and
becauseit reallyisquite simple,itisoen over-thought.Keepin mind;therightphaseis whicheverposion
istheloudest orfullest.Whileplayingmusic withtruelow bass,adjustthecrossoverto apointwherethe
RELandthe speakeraresuretosharefrequencies(abouthalfwayup,or at12o’clockonthe crossover
control,orslightly higherfor smallerspeakers).Atthis pointturn theHI/LOW LEVELcontrol upsothatboth
theRELand speakerareroughlyequal involumeand thenswitch,using thephaseswitch,from“0”to “180”
phaseposions.Again,whicheverposionis loudestorfullestisthe correct posion.Thatis, whenthe
posionisworking inharmonywith yourmain speakers,reinforcingbass,notcancelling it.
Placement:Thenextstepisto determinepreciselyhow farfromthecorner thesubshould beplaced
toachievethemostefficientoutput,aswell asthelowestfrequencyextension. WiththeREL fullyintothe
corner,and poinngstraightout alongthediagonal comingout ofthecorner,connuingto play themusic,
slowlypull theRELfromthecorneronthe diagonal,equidistant from bothsideandrearwall. At acertain
point(somemesamaerof onlyafewinches, inrare cases afoot ormore)theREL willaudibly go lower,
playlouder,and, ifittrulylocks ontotheroomandis fullypressurizingit, theairaroundtheREL willseem
tobeenergized, stoprightthere!Thisis thecorrectposionfromthecorner fortheREL.
Crossover andLevelSengs:To determine thecrossoverpoint,takethevolume oftheREL (usingthe
HI/LOWLEVELcontrol)allthewaydown,andputthecrossoverto 30Hz.Atthispoint,bringtheREL’svolume
backupslowly tothepointwhereyouhaveachieved asubtlebalance, i.e.thepointatwhichyou canhear
theRELeven withthe mainspeakersplaying.Now,bring thecrossoverpoint upunlit isobviouslytoo
high;at thispoint bringit downto theappropriatelowerseng. For allintents andpurposes,thisis the
correctcrossoverpoint.Once thisstagehasbeen reached, subtlechanges tovolume andcrossovercan be
accomplishedtoprovidethelastbit ofcomplete andseamlessintegraon.Withthat, set-up iscomplete.