User Manual

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DigiMax

™

DP88 User Manual

2 Hookup

2.1 Front Panel Controls

Preamp Controls. These controls allow you to adjust the gain and enable phantom power for

every onboard microphone preamp.

1. Preamp Gain: Use this control to adjust the level of microphone preamps

1-8. The display to the far right will show the current trim level.

2. Next / Prev: Use these buttons to select the microphone preamp you wish to control. The

display to the right of the trim control will show which preamp is currently being controlled.

3. Direct: The DigiMax DP88 provides direct-to-converter line inputs for

every channel via a DB25 connector on the rear panel. Press this button

to enable the Direct input for the currently selected channel.

4. 48V: The DigiMax DP88 provides 48V phantom power for each microphone preamp.

This feature can be individually enabled for each channel, using this button. When

48V is active, the blue LED at the top of that channel’s meters will illuminate.

Power User Tip: Use the Direct-to-Converter input to connect line level devices or your favorite

boutique analog mic preamps. When active, this input completely bypasses the mic preamp circuit

and its gain stage to directly access the analog-to-digital converter.

Warning: Phantom power is only required for condenser microphones and can severely

damage dynamic mics, especially ribbon mics. Therefore, switch phantom power o for all

channels where it is not required.

XLR connector wiring for phantom power:

Pin 1 = GND

Pin 2 = +48V

Pin 3 = +48V

Input Meters. These 8-LED meters show the input level of the eight analog inputs on your

DigiMax DP88. The green LEDs will illuminate when the input signal ranges from -50 dBFS to -6

dBFS. The yellow LEDs will illuminate when the input signal ranges from -4 dBFS to -2 dBFS. The

red Clip LED will illuminate when your input signal reaches -0.5 dBFS. At this level, the signal will

begin to overload the analog-to-digital converters and exhibit signs of clipping. Use the gain

controls to keep the signal below this level.

Internal Clock / Sample Rate Selector. Use this button to select the internal sample rate for

your DigiMax DP88 (44.1, 48, 88.2, or 96 kHz) when it is clocking internally. Pressing this button

will cycle through the available sample rates. As each sample rate is selected, its indicator LED

will illuminate.

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