Our classic multichannel preamplifier.
For more than a decade, DigiMax-series preamp/converters have been relied on in countless recording studios worldwide. Based on our highly lauded XMAX Class A solid-state preamp, the DigiMax D8 has become a classic, offering eight of these prized preamps-enough to raise your entire studio rig to a higher level. And thanks to its eight-channel, 24-bit ADAT Optical output, the DigiMax D8 provides an excellent front end or expander for ADAT Optical-equipped digital-audio devices, such as our AudioBox 1818VSL, Studio 192, and Studio 192 Mobile audio/MIDI interfaces.

Superior sound.
A good microphone preamp boosts a mic's level to almost 400 times that of the original signal, making the preamp one of the most important stages in an audio system. A cheap, off-the-shelf, op-amp-type mic preamp delivers thin, noisy, harsh results. In contrast, PreSonus XMAX microphone preamps deliver incredibly high headroom, deep lows, smooth highs, and a rich overall sound. With XMAX preamps, your system's sound quality is limited only by the microphone you plug in.

The right analog I/O makes the D8 a versatile front end.
Its complement of inputs and outputs makes the DigiMax D8 a versatile front end for virtually any system. Two convenient front-panel instrument inputs let you plug in guitars, bypassing the mic inputs. All other connections are in the rear, keeping the wiring out of your face. With eight XLR mic/line inputs, you can plug in virtually any mic- or line-level sound source. Eight ¼-inch, balanced, direct channel outputs allow you to add preamps to devices with line-level inputs or split the mic preamps between two devices.

Expand via ADAT Optical and record the whole band.
Eight-channel, 24-bit, 44.1/48 kHz ADAT Optical ("Lightpipe") output makes the DigiMax D8 an excellent way to add more analog inputs to any third-party, Lightpipe-equipped digital-audio device. Better yet, add a DigiMax D8 to a Lightpipe-equipped PreSonus AudioBox 1818VSL for a 2-rackspace rig with 16 XMAX-equipped recording channels-enough to record an entire live band. To keep your digital audio in sync with ultra-low jitter, the D8 receives word clock at its BNC connection and sends word clock via ADAT Optical.

Careful, it's loaded!
The DigiMax D8 is a proven solution for adding eight professional microphone preamplifiers to any digital recording system. You can easily integrate it into your studio, thanks to plentiful I/O, variable trim control for each preamp, 48V phantom power (switchable in odd-even pairs), fast-acting LED metering, and a 20 dB pad. And you'll love its sound! If you're considering expanding your system, you owe it to yourself to check out the DigiMax D8 at your favorite PreSonus dealer.

Input/Output

2 unbalanced ¼" instrument inputs (front panel; bypass Ch. 1 and 2 mic inputs)

8 balanced rear-panel XMAX mic preamps

1 BNC word-clock input

8 balanced ¼" direct outputs (1 per channel)

1 ADAT Lightpipe optical digital output (8 channels)

Meters, Controls, and Features

Individual channel-trim controls with -4 dB to +50 dB gain range

48V phantom power for condenser microphones (switchable in pairs)

-20 dB pad on every channel

4-segment, fast-acting LED input meter

Clock source (sets clock to external or internal with 44.1 or 48 kHz sample rate)

Digitalia

Professional-quality AD converters (+107 dBu dynamic range)

ADAT Lightpipe digital output: 8 channels at 24-bit resolution and 44.1 and 48 kHz internal sampling rate

Word-clock master via ADAT Lightpipe or slave to external word clock

Power

Internal power supply with standard IEC connector

Physical

1U rack-mountable, rugged steel chassis

Inputs

Input Type: XLR Female Balanced

Frequency Response (±0.5 dB): 20 Hz to 50 kHz

Frequency Response (±3.0 dB): 20 Hz to 150 kHz

Input Impedance (Balanced): 1600

THD+N (unwtd, 1 kHz @ +4 dBu Output, Unity Gain): < 0.003%

EIN (unwtd, 55 dB Gain, 150 Input, 20 Hz to 22 kHz): -126 dBu

S/N Ratio (Unity Gain, unwtd, Ref. = +4 dBu, 20 Hz to 22 kHz): >101 dB

Common Mode Rejection Ratio (1 kHz, 55 dB Gain): > 55 dB

Gain Control Range (±1 dB): -4 dB to 50 dB

Maximum Input Level (Unity Gain, 1 kHz @ 0.5% THD+N): +14 dBu

Signal Level LEDs: +10 dBu (0 dBFS)

Red/Clip (±0.5 dBu): +4 dBu (-6 dBFS)

Yellow (±0.5 dBu): -8 dBu (-18 dBFS)

Green (±0.5 dBu): -14 dBu (-24 dBFS)

Phantom Power (±2 VDC): +48 VDC

Instrument Input (channels 1 and 2 only):

Type: ¼" TRS Female Unbalanced

Input Impedance:: 1 M

Line Outputs

Type: ¼" TRS Balanced

Output Impedance: 51

Digital Audio

ADC Dynamic Range (A-wtd, 48 kHz sample rate): 107 dB

Bit Depth: 24

Reference Level for 0 dBFS: +10 dBu

Internal Sample Frequency, Selections: 44.1, 48 kHz

External Sample Frequency, Input: 75 BNC

Power

Input Connector Type: IEC

Input Voltage (factory configured): 90 to 230 VAC

Power Requirements (Continuous): 20W

Physical

Dimensions: 1U rackmount

Height: 1.75" (44.45 mm)

Depth: 7" (177.8 mm)

Width: 19" (482.6 mm)

Weight: 6 lbs. (2.72 kg)