User manual ART SGE MACHK II MULTI-EFFECTS

[. . . ] Like the Digital MPA, the MPA Gold features Variable Input Impedance. Variable Input Impedance is intended to optimize the MPA Gold for the widest range of microphones. [. . . ] Variation of the input impedance of a microphone preamplifier changes the load against which the microphone has to push. This variation dramatically alters the performance of a microphone, and creates numerous sonic possibilities for microphone performance. The variable impedance control of the MPA Gold is infinitely variable, as opposed to steps. This allows users much finer control over the tuning of the impedance. The selectable Tube Plate Voltage function delivers a wide variety of tones. The meters act like a normal histogram for the average signal level and the display holds the highest LED on alone for one second. While the average level function attack and release are measured in milliseconds, the peak function has a 20 microsecond attack time. Additionally, the analog meter range is switchable between -10dB and +4dBU. The MPA Gold's High Pass Filter is continuously variable from 15Hz to 150Hz. This makes our MPA Gold more flexible audio processor. [. . . ] The MPA Gold's High Pass Filter is continuously variable from 15Hz to 150Hz. This makes our MPA Gold more flexible audio processor. [. . . ]