Electro-Voice Dx46 Owner's Manual page 31

I P EQ (PEQ)
NPUT ARAMETRIC
Use the < SELECT > buttons to make the top line of the Edit screen active and the Value Up and Down
buttons to navigate to the Input PEQ screen. The Dx46 provides a stereo 10-band multi-mode filter ge-
nerically referred to as the Input PEQ (Parametric Equalizer).
The Input PEQ is a very powerful and complex set of multi-mode filters. Care must be given configuring these filter
bands, as they interact and can produce unexpected results. Using the IRIS-Net application is strongly recommend-
ed to set all but the most simple eq curves.
Each band of the Input PEQ can be configured for a specific filter type, frequency, slope or Q and gain setting. At-
tention must be paid to the ultimate output gain through the rest of the Dx46's audio path, as it is possible to boost
frequency ranges to the point where the internal or external audio paths of the system may be clipped. Monitoring
the output VU meters of the Dx46's output channels will indicate internal clipping; the input meters of connected
amplifiers should do the same. The following section details the type of filters that can be selected for each of the
Input PEQ's 10 bands and their parameters.
Filter type
Loshelv
Hishelv
PEQ
Lopass
Hipass
Low shelf (Loshelv)
The Low-shelf filter is a "hinge" type; in that frequencies below its frequency setting can be boosted or cut; hinging
on the cut-off Frequency. The amount of boost or cut (Gain), and the extent of width of the filter's transition band
(Slope), are determined by the low-shelf filter's settings. (See Response/Q and Gain.) Use the < SELECT > buttons
to navigate to the filter setting you wish to adjust, and the Value Up and Down buttons to alter these settings. Press
the Value Up and Down buttons once to increment values by one unit, or press and hold to scroll rapidly through
available values. (Values do not wrap around.)
Hi shelf (Hishelv)
The Hi-shelf filter is a "hinge" type; in that frequencies above its frequency setting can be boosted or cut; hinging
on the cut-off Frequency. The amount of boost or cut (Gain), and the width of the filter's transition band (Slope), are
determined by the hi-shelf filter's settings. (See Response/Q and Gain.) Use the < SELECT > buttons to navigate
to the filter setting you wish to adjust, and the Value Up and Down buttons to alter these settings. Press the Value
Up and Down buttons once to increment values by one unit, or press and hold to scroll rapidly through available
values. (Values do not wrap-around.)
PEQ
PEQ is shorthand for Parametric Equalizer. A parametric equalizer has three parameters that determine the frequen-
cies that are affected by it; Center Frequency, Q (filter-width) and Gain. Parametric filters are ideal for identifying,
isolating and correcting problematic frequency ranges. The Frequency parameter determines the center of a range
of frequencies that will be adjusted by the PEQ. The Q parameter will determine the range of frequencies adjacent
to the center frequency that will also be effected; the greater the value, the smaller the range of adjacent frequencies
that will be effected. The gain parameter determines the amount of boost or cut that is applied to the frequencies
IN A:PEQ1
Type: Hipass
Slope: 12dB/oct
Frequency Slope
6dB/oct.
12dB/oct.
6dB/oct.
12dB/oct.
20 to 20000 Hz
-
6dB/oct.
12dB/oct.
Table 5-7: Input Channel Parametric EQ
Active
F: 20000.0Hz
Q: 2.0
Resp / Q Gain
-
-18.0 to +12.0 dB
-
0.40 to 40
-
-
0.4 to 2.0
-
D 46
X
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