Rupert Neve Portico 5032 - Mic Pre / EQ - Manual (Page 9)

5032 MIC PRE/EQUALIZER
8
5032 - 160 Hz Low Shelf min and max
-20
+20
-18
-16
-14
-12
-10
-8
-6
-4
-2
-0
+2
+4
+6
+8
+10
+12
+14
+16
+18
dBu
20 20k 50 100 200 500 1k 2k 5k 10k
Hz
RUPERT NEVE DESIGNS
THE EQUALIZER
The subtleties of audio circuit design as relating to sonic performance are becoming more clearly
understood by designers and professional users. For example, it is evident that frequencies above
20 kHz and incredibly small distortion and non-harmonic artifacts, affect the way that humans
perceive sound. Specifications and measurements do not fully disclose these sonic qualities that
are important to sound engineers and musicians. There is no substitute for hours of patient
listening and experimental bench work that results in the sweet and silky sound of my classic
designs.
LOW SHELF and HIGH SHELF
The Portico™ 5032 Equalizer makes use of both a High Frequency and Low Frequency shelving
characteristic that provide steeply rising or falling curve shapes. Such curves, when used
aggressively, enable second and even third harmonics to be varied in relation to a fundamental,
allowing the natural sound of a musical instrument to be varied. Used less aggressively, bands of
frequencies above or below the “turnover” frequency can be adjusted to desired levels.
These sections each provide EQ curves that approximate to 6 dB/Octave with a boost or cut of up
to 15 dB and a true “Flat” response at the center of the control track. Frequencies chosen for these
“turnover” points are the result of critical listening and follow traditional equalizer patterns.