Barefoot Sound MicroMain45 User Manual - page 4
3
3.0 Input and Controls
1. [INPUT] XLR connector is designed to receive analog
balanced line level audio signal from sources such as
preamplifiers, sound cards, monitor controllers and mixing
consoles. Pin 1 is tied to chassis ground. Pins 2 & 3 are
fully floating differential inputs. Pin 3 must be referenced
to ground for single ended input signals. The analog signal
is converted to 24bit/192kHz digital audio via a precision,
ultra-high-fidelity analog to digital converter section inside
the MicroMain45.
2. [LEVEL] Ten position rotary switch adjusts the input level in
precise increments from +3dB to –9dB. The level steps are
as follows: +3, +2, +1, 0, -1, -2, -3, -5, -7, -9dB The +3dB
setting matches the input sensitivity of the first generation
Barefoot MicroMain27 and MicroMain35.
3. [EQ] Ten position rotary switch adjusts the equalization
balance of the speaker. See section 8 for details.
4. [USB] The universal serial bus connector is for factory
adjustments and calibrations. This connector is NOT an
audio input.
4.0 Startup
1. Verify that the AC Voltage select switch on the rear panel is in the correct position for the AC voltage in your
facility (see warnings on pervious page for details) then plug in grounded mains power cable.
2. Set Level control to nominal desired input sensitivity.
3. Set EQ control to FLAT position.
4. Ensure that the audio source signal is fully attenuated.
5. Power on the speaker with the rocker switch located on the rear panel above the mains connector. The LED
indicator on the front of the speaker will illuminate Red for a couple of seconds then turn Aqua.
6. Turn up the audio signal and enjoy!
Arrow indentation indicates setting position on screwdriver
adjustable knobs.