Apogee Mini-MP Manuale d'uso - Pagina 10

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Mini-MP – User's Guide

Navigating the Front Panel

48 V (Left and Right) – These switches engage 48 volt phantom power on the corresponding IN connections, for

powering of microphones which require this voltage. To avoid inadvertently switching 48V, the switches must be

pressed to the right for approximately 1 second before the function is actually engaged or disengaged.

High-Pass

has a corner frequency of 80 Hertz and rolls off with a slope of 18dB per octave. Set the switch to IN (by pushing UP)

to engage the high-pass filter.

Polarity

(Left and Right) – These switches reverse the polarity of the corresponding channel; Set the switch to

180º (by pushing UP) to reverse the polarity.

GAIN Controls (LEFT / MID - RIGHT / SIDE) – These controls set the amount of gain applied to the corresponding

channel, and may be set to a value between 0 and 70 dB of gain. When the unit is in MS mode, the stereo width of the

output may be adjusted by modifying the balance between the LEFT / MID and RIGHT / SIDE controls. Though the gain

needed in any particular situation may vary greatly, FIGURE 1 gives a few typical values as a point of departure.

Level Meters (Left and Right) – These 3 LEDs employ VU meter characteristics to display the level of the

corresponding channel; thus, an RMS Average level is displayed, and the 0 LED corresponds to a level of 0 VU, or +4

dBu. The CLIP LED indicates a level within 2 dB of clipping.

When the unit is in MS mode, the Left meter displays the sum of the inputs (M+ S) while the Right meter displays the

difference of the inputs (M-S). The CLIP LEDs always display the onset of clipping in the corresponding channel only.

OUTPUT control – This control sets the amount of attenuation or gain applied at the output stage of the unit. The

control has been designed to operate like a fader on a mixing console, where the output level can be adjusted from

full attenuation

set the OUTPUT control to 0.

POWER switch – This switch not only applies power to the unit, but also selects the stereo mode, ST(stereo) or

MS(Mid-Side). When power is correctly applied to the unit, a soothing blue glow emanates from behind the OUTPUT

control.

When set to ST, each channel operates independently

When set to MS, both inputs are configured to accept an MS microphone array, and an MS decoding matrix is

applied to the signals. For more information on the MS position, please consult the section of this manual entitled

"MS Recording & Playback".

(Left and Right) – These switches engage a high-pass filter on the corresponding channel; the filter

through the 0 gain position to +6 dB of additional gain. When initially setting the GAIN control,

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