M-Audio DMP3, User Manual, Page: 3 / 12

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Front & Rear Panels
Front Panel
1. Gain Adjustment Knobs: Separate gain controls for pre-amp channels A
and B adjust the output volume levels independently. Full counter-
clockwise is the minimum gain position, while full clockwise is
maximum gain.
2. VU Meters: These VU meters show output level, calibrated to correspond to
digital peak meters, where 0 VU is approximately 3dB to 6dB below clipping.
3. Clip LEDs: The Clip LED will light when that input signal is too strong
and is about to distort, or “clip” (4dB below clipping). If this LED remains
lit for more than a few moments, reduce the gain adjustment knob setting.
4. Low Cut LEDs: The "Low Cut" LED, when lit, indicates that the Low Cut
Filter switch has been engaged for the corresponding channel.
5. Hi/Lo Gain Switch: This switch will set the “gain range” (or, amount of
gain possible) for the corresponding input channel. Once the gain range
is set, gain is adjusted via the Gain Adjustment Knobs. In the “Out’
position, the gain range is 32dB to 66dB (Hi gain). In the ‘In’ position, the
gain range is 6dB to 36dB (Lo gain). See sections, “Setting the Gain” and
“Hi/Lo Gain Switches” for more information.
6. Low Cut Filter Switch: Pressing and locking this switch to the ‘In’
position engages the Low-Cut filter for the associated channel. Pressing
and releasing to the ‘Out’ position disengages the filter.
7. Main Power LED: When the proper power supply is applied to the DMP3
and the Main Power switch is switched to the ‘On’ position, this LED will
light, indicating that the unit is powered up.
8. Phantom Power LED: When lit, this LED indicates that phantom power
has been switched on for both of the mic pre-amp channels.
9. Main Power Switch: This switch, when pressed and locked to the ‘In’
position, switches the DMP3 power on.
10. Phantom Power Switch: When this button is pressed and locked to the ‘In’
position, phantom power (48v) will be sent to both XLR In 1 and XLR In 2.
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