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x Equalizer.TheJSD100equalizerallowsthefrequencyresponseoftheJSD100tobeadjustedforthe
acousticsoftheroom.Theequalizerincludespresetsforaflatresponse,a"peaktopeak"response,
a"zigzag"response,andan"XCurve."Youwouldusuallystartequalizationfromtheflatresponseor
theXCurveresponse.Thepeaktopeakandzigzagresponsesareonlyusedtoprovideaquickcheck
oftheequalizer.NotethattheXCurvebuttondoesnotautomaticallyequalizetheroom.Instead,it
setstheequalizertoanXCurveresponse.Sincetheroomisnotflat,adjustmentswillhavetobe
madefromthesesettingstoprovidethedesiredcurve.
Usingtheinternalpinknoisegeneratorandtheinternalrealtimeanalyzer(RTA),theequalizeris
adjustedsotheRTAshowstheresponsespecifiedastheXcurveinSMPTE202M1998.Thecurve
callsforaflatresponsebetween63Hzand2kHzwiththelevelfallingoffatthelowandhighends.
ThetablebelowlistsidealXcurvelevelsbasedonthenumberofseatsintheauditorium.Formore
details,consultSMPTE202M1998.
XCurveResponseindB(SMPTE202M1998)
Frequency
(Hz)
NumberofSeats
30 150 500 1000 1500 2000
40 2 2 2 2 2 2
50 1 1 1 1 1 1
63–2k 0 0 0 0 0 0
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