Technical Specifications

Microphone Preamp (XLR Balanced)


All measurements Microphone Input to Direct Output
Frequency Response (+0,- 0.5dB) 20Hz to 40KHz
Frequency Response (+0/-3.0 dB) 20Hz to 100KHz
Input Impedance 1600 Ohm
THD+N (unwtd, 1KHz @ +4dBu Output, Unity Gain) <0.003%
EIN (unwtd, 55dB Gain, 150 Ohm Input, 20Hz to 22KHz) -126dBu
S/N Ratio (Unity Gain, unwtd, Ref. = +4dBu, 20Hz to 22KHz) >101dB
Common Mode Rejection Ratio (1KHz, 55dB Gain) >55dB
Gain Control Range (+/-1dB) 0dB to 55dB
Maximum Input Level (Unity Gain, 1KHz @ 0.5% THD+N) +11dBu
Phantom Power (+/- 2VDC) +48VDC

Instrument Input (1/4” TRS, Preamps 1 & 2)

Input Impedance 1 Mega Ohm

Line Inputs (1/4” TRS, Preamps 3 to 8)


All measurements Line Input to Direct Output
Frequency Response (+0,- 0.5dB) 20Hz to 60KHz
Frequency Response (+0/-3.0 dB) 20Hz to 150KHz
Input Impedance (Balanced) 10 KOhm
THD+N (unwtd, 1KHz @ +4dBu Output, Unity Gain) < 0.0015%
S/N Ratio (Unity Gain, unwtd, Ref. = +4dBu, 20Hz to 22KHz) >101dB
Gain Control Range (+/-1dB) -12dB to +10dB
Maximum Input Level (Unity Gain, 1KHz @ 0.5% THD+N) +22dBu

Insert Jacks (1/4” TRS)

Send Output Impedance (Unbalanced, Ring) 51 Ohm
Return Input Impedance (Unbalanced, Tip) 10KOhm

Direct Outputs/DAC Outputs (1/4” TRS)

Output Impedance (Impedance Balanced) 51Ohm

Signal Level LEDs

Clip (+/- 0.5dBu) +18dBu

Digital Audio

ADC Dynamic Range (Awtd, 48KHz Sample Rate) 107dB
DAC Dynamic Range (Awtd, 48KHz Sample Rate) 110dB
Bit Depth 24
Reference Level for 0dBFS +18dBu
Digital Audio Output (2-Toslink™ Connectors, 8 channels) ADAT/SMUX
Digital Audio Input (2-Toslink™ Connectors, 8 channels) ADAT/SMUX
Internal Sample Frequency Selections (KHz) 44.1, 48, 88.2, 96
External Sample Frequency Inputs BNC, ADAT (SMUX)
BNC Word Clock Output Level (75 Ohm load) 4.5V
BNC Word Clock Input Level Range 3.0 to 5.5V
Jitter Specification <20ps RMS, 20Hz-20kHz
Jitter Attenuation >60dB; 1ns in approx.1ps out

Power

Input Voltage (factory configured) 18 to 30VDC
Power Requirements (Continuous) 15W
DC Input Connector Type 5.5mm OD/2.5mm ID Barrel, Center Positive
External Switching Power Supply 90-230VAC/35W

Physical

Main Chassis
Package Type 13U - steel chassis
Dimensions 19(W) X 1.75(H) X 7(D) inches
Weight 7.0lbs

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