gml gml8200 Manual De Usuario

A.  The Cut/Boost potentiometer controls the amount of gain or attenuation for each

band.  Maximum level of cut or boost is 15 dB, continuously variable, with a highly
accurate 0 dB setting (no detent).  The element of the potentiometer is precision-
trimmed carbon film, for the highest signal integrity and longest life.

B.  The Frequency potentiometer determines the center frequency for each band.

Frequency ranges differ for the bands to accommodate maximum flexibility, and are
continuously variable.  The inner ring of numerical markings denote center frequency
in concert with the pointer; these markings are estimations and will vary slightly from
unit to unit due to component tolerances.  Carbon film is the element of this
potentiometer.

C.  The Q potentiometer is mounted concentrically with the Frequency potentiometer but

rotates independently.  This controls the sharpness of the peak or dip for each band,
with a counter-clockwise detent for shelving on the LOW and HIGH bands.  The
outer ring of small numerical markings denote Q value, which is continuously
variable from 0.4 (widest Q) to 4.0 (sharpest Q).  This is a carbon-film potentiometer.

D.  The Power Indication LED allows visual confirmation of the presence of appropriate

power supply voltages, +/- 28 V.

E.  The EQ IN switch toggles between the active (switch in, lamp ON) and bypassed

(switch out, lamp OFF) modes of operation.  No signal is present at the switch itself;
this is merely a latching DC voltage switch to control a high quality signal relay
located near the back of the unit.