gml gml2032 Manual De Usuario
A particularly wide range of gain settings (10dB through 75dB of gain) is available for
both preamplifier inputs of the Model 2032. This feature accommodates a broad array
of input signals, from extremely "hot" microphone inputs to extremely "low" MI inputs,
which are often neglected by professional peripheral audio processing devices. Indeed,
the minimal 20dB of gain found in most microphone preamplifiers can be excessive in
certain circumstances, and decreases the possibility of optimized gain staging. By the
same token, real-world MI signals often require more than the typical 10 dB of gain
commonly accorded them.
both preamplifier inputs of the Model 2032. This feature accommodates a broad array
of input signals, from extremely "hot" microphone inputs to extremely "low" MI inputs,
which are often neglected by professional peripheral audio processing devices. Indeed,
the minimal 20dB of gain found in most microphone preamplifiers can be excessive in
certain circumstances, and decreases the possibility of optimized gain staging. By the
same token, real-world MI signals often require more than the typical 10 dB of gain
commonly accorded them.
A combination of the rotary Gain switch and Fine potentiometer is used to control the
gain setting of the preamplifier section, with the overall gain of the preamplifier
calculated by adding the two control values. The Gain switch allocates between 15dB
and 70dB of gain in precise 5dB steps, using a combination of discrete resistors for the
ultimate in accuracy, stability, durability, and sonic integrity. Providing +/-5dB of
continuously variable gain, the Fine control adds elasticity to gain setting.
gain setting of the preamplifier section, with the overall gain of the preamplifier
calculated by adding the two control values. The Gain switch allocates between 15dB
and 70dB of gain in precise 5dB steps, using a combination of discrete resistors for the
ultimate in accuracy, stability, durability, and sonic integrity. Providing +/-5dB of
continuously variable gain, the Fine control adds elasticity to gain setting.
Incorporated into the preamplifier section, the Phase switch activates a relay just before
the balancing circuit of the preamp. No signal is present at the front panel Phase
switch--it is merely a relay control and LED indicator voltage. Engaging this switch
reverses the phase of the input signal, akin to swapping pins 2 and 3 on the Input XLR.
In the case of the MI input, the Phase function will change the absolute polarity of a
given input signal.
the balancing circuit of the preamp. No signal is present at the front panel Phase
switch--it is merely a relay control and LED indicator voltage. Engaging this switch
reverses the phase of the input signal, akin to swapping pins 2 and 3 on the Input XLR.
In the case of the MI input, the Phase function will change the absolute polarity of a
given input signal.
II. Filter
Immediately following the preamplifier section of the Model 2032 is an extremely useful
and transparent high-pass filter (HPF), which has three optional settings: 40Hz roll-off,
flat response, or 100Hz roll-off. Designed for maximum clarity and musicality, this
active second order Butterworth high-pass filter is implemented with premium-grade
SMD film capacitors, precision resistors, and a pristine GML 9202 discrete opamp.
Passband response is maximally flat for both the 40Hz and 100Hz selections, while the
Model 2032's ruler-flat frequency response is preserved in the "flat" setting. A second-
order high-pass filter, this circuit creates a -12dB per octave roll-off below the corner
frequency, an appropriately flexible and powerful function since many engineers use the
low-frequency band of a fully parametric equalizer--a Model 8200, for instance--in shelf
mode as a high-pass filter of sorts.
and transparent high-pass filter (HPF), which has three optional settings: 40Hz roll-off,
flat response, or 100Hz roll-off. Designed for maximum clarity and musicality, this
active second order Butterworth high-pass filter is implemented with premium-grade
SMD film capacitors, precision resistors, and a pristine GML 9202 discrete opamp.
Passband response is maximally flat for both the 40Hz and 100Hz selections, while the
Model 2032's ruler-flat frequency response is preserved in the "flat" setting. A second-
order high-pass filter, this circuit creates a -12dB per octave roll-off below the corner
frequency, an appropriately flexible and powerful function since many engineers use the
low-frequency band of a fully parametric equalizer--a Model 8200, for instance--in shelf
mode as a high-pass filter of sorts.
The Insert Out XLR signal is taken directly from the HPF output and is always active,
regardless of the Insert switch setting. As with all Model 2032 sections, this stage
exhibits extremely low noise and distortion, wide bandwidth, and dynamic range, and
utilizes precise DC-servo coupling.
regardless of the Insert switch setting. As with all Model 2032 sections, this stage
exhibits extremely low noise and distortion, wide bandwidth, and dynamic range, and
utilizes precise DC-servo coupling.