Mackie DL806 and DL1608 Reference Guide
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Modern EQ Shelf / Bell
AShelf/Belloptionisavailableonbands1and4.Simplytapwhichsettingyouprefer.
The chosen setting will illuminate green when engaged, while the other option will be grayed out.
When engaged, the EQ becomes a shelving lter rather than a parametric lter. Shelf boosts
frequenciesfromthecut-opointupwards.Agentleroll-omaybeassumedwithshelf.
The Q control becomes inactive when shelf is engaged.
Shelf EQ
Bell boosts frequencies near the cut-o point then slowly decreases until it reaches a gain of zero.
When engaged, the EQ becomes a parametric lter rather than a shelving lter. The Q control
becomes active when bell is engaged. In fact, a smaller Q value results in a wider curve, while a
larger Q value results in a narrower curve where frequencies may be zoomed in on more precisely.
AsmallerQisgenerallyintendedformoremusicalpurposes,whilealargerQisgenerallyusedwhen
decreasing problem frequencies.
Bell EQ
Gain (+)
Gain (–)
Frequency (+)
Cut-Off
Point
Frequency (–)
Gain (+)
Gain (–)
Frequency (+)
Cut-Off
Point
Frequency (–)