Presonus Digimax DP88 User Manual
DigiMax™ DP88
8x8 96kHz preamp, converter with ADAT IO,
direct analog inputs, remote mic preamps,
DAC outputs, and Word Clock IO
Owner’s Manual
www.presonus.com
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Table of Contents
1 Overview — 1
1.1 Introduction — 1
1.2 Summary of DigiMax DP88 Hardware Features — 1
1.3 What is in the Box — 2
2 Hookup — 3
2.1 Front Panel Controls — 3
2.2 Back Panel Connections — 4
2.3 Connection Diagrams — 6
2.3.1 DigiMax DP88 with Studio 192 — 6
2.3.2 Project Studio — 7
2.3.3 Using the DigiMax DP88 as a Mic Split — 8
3 Technical Information — 9
3.1 Audio Specification — 9
3.2 Block Diagram — 10
4 Warranty Information — 11
4.1 How Consumer Law Relates To This Warranty — 11
4.2 PreSonus Products And EU Statutory Warranty — 11
4.3 What This Warranty Covers — 11
4.4 Exclusions and Limitations — 11
4.5 Who This Warranty Protects — 11
4.6 How Long This Warranty Lasts — 11
4.7 What PreSonus Will Do — 11
4.8 How to Get Warranty Service (USA) — 12
4.9 How to Get Warranty Service (outside of USA) — 12
1 Overview
1.1 Introduction
Thank you for purchasing the PreSonus DigiMax™ DP88 8x8 96kHz preamp/converter. PreSonus Audio
Electronics has designed the DigiMax DP88 utilizing high-grade components to ensure optimum performance
that will last a lifetime. Loaded with 8 high-headroom, Class A, digitally controlled XMAX™ microphone
preampliers; 24-bit/96kHz ADAT/dual SMUX I/O; direct-to-converter line inputs; direct preamp outputs; DAC
outputs; and Wordclock I/O, the DigiMax DP88 provides unique interoperability with the PreSonus Studio 192
USB 3.0 Audio Interface and Studio Command Center, but is the perfect hardware expansion for any digital
recording system with optical lightpipe expansion capability.
We encourage you to contact us at 225-216-7887 (9 a.m. to 5 p.m. M-F Central Standard Time)
with questions or comments regarding your PreSonus DigiMax DP88. PreSonus Audio Electronics
is committed to constant product improvement, and we highly value your suggestions. We
believe the best way to achieve our goal of constant product improvement is by listening to
the real experts: our valued customers. We appreciate the support you have shown us through
the purchase of this product and are condent that you will enjoy your DigiMax DP88!
About this manual: We suggest that you use this manual to familiarize yourself with the features, applications, and
correct connection procedures for your DigiMax DP88 before trying to connect it to your other studio equipment.
Throughout this manual you will nd Power User Tips that will help you to get the most from your
DigiMax DP88 expert. Please pay close attention when connecting your DigiMax DP88 to your
system. Bad cables and improper grounding are the most common causes of problems encountered
in recording and sound reinforcement environments. We recommend checking your cables,
connections, and grounding if you experience any noise or sonic performance problems.
DigiMax™ DP88 User Manual
1.2 Summary of DigiMax DP88 Hardware Features
• Flawless analog signal path with top-quality 118dB Burr-Brown digital conversion, and 24-bit resolution
• 8 digitally remote-controlled XMAX™ microphone preamps
• Controlled from front panel or standard MIDI using simple CC
messages to remote control and recall preamp settings
• Controlled from UC Surface and Studio One 3.0 when connected to Studio 192
• Expands both the inputs and outputs of any interface with ADAT I/O
• 8 channels of ADAT optical I/O at up to 96 kHz (via dual SMUX)
• Individual 48V phantom power with LED indicators
• 8 x 8-LED input metering
• 8 Balanced Direct A/D Line Level inputs (DB25)
• 8 Balanced DAC Outputs (DB25) to expand your interface outputs
• 8 Balanced Direct Outputs (DB25)
• 8 XLR Bypass Mic Inputs (DB25)
• BNC Wordclock I/O
• MIDI I/O
• Solid metal chassis
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1.3 What is in the Box
1.3 What is in the Box
In addition to this User Manual, your DigiMax DP88 package contains the following:
• PreSonus DigiMax DP88 24-bit/96kHz preamp/converter
• MIDI I/O Break-out cable
• External power supply
2
2 Hookup
2.1 Front Panel Controls
DigiMax™ DP88 User Manual
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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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