Mackie DL1608 Reference Guide V1.2
56
HPF On / Off and Frequency
High-pass fi lters are utilized to cut out low frequencies. The high-pass fi lter control adjusts the cut-off
frequency for the fi lter. Frequencies below the cut-off frequency are attenuated at a rate of 12 dB/octave.
The slope for the HPF is adjustable by sliding the HPF ball or HPF slider left and right. Simply tap the HPF
button – near the lower-left corner of the screen – to engage the high-pass fi lter. It will illuminate green
when engaged and is gray when disengaged.
High-Pass Filter (Engaged)
High-Pass Filter (Disengaged)
Gain (+)
High-Pass
Filter
Gain (–)
Frequency (+)
Cut-Off
Point
Frequency (–)
Gain (+)
High-Pass
Filter
Gain (–)
Frequency (+)
Cut-Off
Point
Frequency (–)
DL1608 EQ at a Glance
Parameter
Low Value Limit
High Value Limit
Default
Polarity Invert
Off
On
Off
HPF Enable
Off
On
On
HPF Frequency
20 Hz
700 Hz
100 Hz
HPF Slope
–
–
18 dB/octave
EQ Enable
Off
On
On
High Band Type
Parametric
Shelf
Shelf
Low Band Type
Parametric
Shelf
Shelf
High Gain
–15 dB
+15 dB
0 dB
High Freq
20 Hz
20 kHz
12 kHz
High Q / Shelf Slope
0.5
16
2
High Mid Gain
–15 dB
+15 dB
0 dB
High Mid Freq
20 Hz
20 kHz
2 kHz
High Mid Q
0.5
16
2
Low Mid Gain
–15 dB
+15 dB
0 dB
Low Mid Freq
20 Hz
20 kHz
250 Hz
Low Mid Q
0.5
16
2
Low Gain
–15 dB
+15 dB
0 dB
Low Freq
20 Hz
20 kHz
80 Hz
Low Q / Shelf Slope
0.5
16
2
