gml gml2032 Manual De Usuario

A.  Source determines which input the preamplifier section utilizes, either MIC or MI.

B.  P48 applies 48V Phantom power to pins 2 and 3 of the mic INPUT XLR.

C.  Gain sets the coarse gain in precise 5dB steps, from 15dB to 70dB.

D.  Fine provides a continuously variable amount of gain, from –5dB to +5dB.

E.  Filter regulates the high-pass filter mode of operation, optionally 40Hz, flat, or 100Hz.

F.  EQ IN engages the parametric equalizer. No signal is present at the switch; it merely

controls a high quality signal relay.

G.  Cut/Boost adjusts the amount of gain or attenuation for each equalizer band with a

guaranteed 0dB center position.

H.  Frequency (outer ring) establishes the center frequency for each equalizer band.  Lower

frequencies are counter-clockwise while higher frequencies are clockwise.

I.  Q (inner knob) appoints the sharpness of a given cut/boost for each equalizer band.  Wider

peaks/dips are counter-clockwise while more narrow peaks/dips are clockwise.  LOW and
HIGH bands provide a SHELF mode of operation at the full-CCW detent.

J.  The MI input jack furnishes a convenient unbalanced high impedance input.  Tip is “hot”,

sleeve is common; tip is shorted to common when no plug is inserted to minimize noise.

K.  Phase reverses the preamplifier input signal polarity. No signal is present at the switch; it

merely controls a high quality signal relay.

L.  The overload (OL) indicator monitors both the preamplifier and equalizer outputs to warn of

possible signal overload.  This peak-responding LED is triggered at +24dBu, several dB
below actual clipping.

M.  Insert splits the equalizer input from the preamplifier output for Independent or Inline Insert

configurations. No signal is present at the switch; it controls a high quality signal relay.

N.  The POWER status LED indicates the presence of appropriate AC mains voltage at the rear

panel IEC inlet and correct internal DC supply operation.