The Presonus DigiMax D8 is an 8 channel preamplifier featuring 8 award-winning class A XMAX microphone 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 back of the unit for routing and flexibility. The Presonus DigiMax D8 also has word clock sync input for ultra-low jitter and robust synchronization.
The Presonus 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.
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.
|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 Ohms|
|THD+N (unwtd, 1 kHz @ +4 dBu Output, Unity Gain)||< 0.003%|
|EIN (unwtd, 55dB Gain, 150 Ohms Input, 20Hz to 22 kHz)||-126 dBu|
|S/N Ratio (Unity Gain, unwtd, Ref. = +4 dBu, 20Hz to 22 kHz)||> 101 dB|
|Common Mode Rejection Ratio (1 kHz, 55 dB Gain)||> 55 dB|
|Gain Control Range (+/- 1dB)||-4 dB to 50 dB|
|Maximum Input Level (Unity Gain, 1 kHz @ 0.5% THD+N)||+14 dBu|
|Signal Level LEDs
Red / Clip (+/-0.5 dBu)
Yellow (+/-0.5 dBu)
Green (+/-0.5 dBu)
Green (+/-0.5 dBu)
+10 dBu (0 dBFS)
|Phantom Power (+/-2 VDC)||+48 VDC|
|Instrument Input (channels 1 and 2 only)|
|Type||1/4" TRS Female Unbalanced|
|Input Impedance||1 MOhms|
|Type||1/4" TRS Balanced|
|Output Impedance||51 Ohms|
|ADC Dynamic Range (Awtd, 48 kHz Sample Rate)||107dB|
|Reference Level for 0dBFS||+10 dBu|
|Internal Sample Frequency Selections (kHz)||44.1, 48|
|External Sample Frequency Input||75 Ohms BNC|
|Input Connector Type||IEC|
|Input Voltage (factory configured)||90 to 230 VAC|
|Power Requirements (Continuous)||20W|
|Weight||6 lbs. (2.72 KG)|
|Package Type||1U - steel chassis|
|Dimensions||19(W) X 1.75(H) X 7(D) inches|
Presonus warrants its products to be free from defects for 1 year from the date of purchase.
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