Presonus DigiMax D8

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Product Type: Pro Audio

Product Vendor: Presonus

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Details The DigiMax D8 is an 8 channel preamplifier featuring 8 award-winning class A XMAX mic preamps with 24-bit ADAT digital output. All eight preamps include variable trim control 48V phantom power ultra-fast acting LED metering and 20 dB pad....


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Product Details

Details

The DigiMax D8 is an 8 channel preamplifier featuring 8 award-winning class A XMAX mic preamps with 24-bit ADAT digital output. All eight preamps include variable trim control 48V phantom power ultra-fast acting LED metering and 20 dB pad. In addition 2 instrument inputs are located on the front panel for direct Hi-Z instrument input. Balanced TRS direct analog outputs are located on the rear panel for routing and flexibility. The DigiMax D8 also includes word clock sync input for ultra-low jitter and robust synchronization.

The DigiMax D8 is the perfect solution to add eight professional microphone preamplifiers to any digital recording system with ADAT optical lightpipe expansion capability including Digidesign’s HD and 003 systems RME YAMAHA Alesis Mackie and many others.


8 XMAX Class A Preamplifiers
The DigiMax D8 includes eight custom-designed high-voltage discrete XMAX Class A microphone preamplifiers for all types of microphones. The job of a microphone preamplifier is to boost microphone level signals to line level so that the signal can be converted from analog to digital. This mic to line boost is generally a preamplification of over 400 times the voltage of the original mic level signal. This preamplification stage is one of the most important stages that the signal will go through before converted to digital and is why a high performance preamplifier is important to achieving great results.
All XMAX preamplifiers are built with the same three elements:

High Voltage - The XMAX preamplifier runs on power rails of 30V. Most off the shelf op amp based designs run on power rails of 10V to 18V. Higher voltage power rails deliver more headroom deeper lows smoother highs and an overall fuller sound.

Discrete - No op amps. Only transistors resistors and capacitors. Op amps add noise coloration and harshness to a signal. Discrete designs deliver ultra low noise and transparency.

Class A - When a circuit is running in Class A mode the circuit is always in an "on" state operating at its optimal voltage requirements. Class A mode has zero crossover distortion and delivers purer clearer and more musical sonics than class A/B designs which are found in most op-amp circuits.

The net result of the XMAX preamp design is high headroom low noise wide dynamic range and wide frequency range and most importantly musicality and transparency - smooth highs solid deep lows and everything in between.
8 XMAX class A Audio Recording > Microphone Preamplifiers > Microphone Preamps w/ trim control24-bit resolution ADAT digital output44.1 and 48K sampling ratesExternal sync via BNC word clock inputDirect outputs on every channelLED input metering-20dB Pad on every channel.

Specifications

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)

As a commitment to constant improvement, PreSonus Audio Electronics, Inc., reserves the right to change any specification stated herein at anytime, without notification.

 

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