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All specifications are typical performance unless otherwise noted. All specifications are subject to change at any time. Tested with Audio Precision APx555. | |
Preamp | |
Test Signal Path | APx555 (Line Out) - Input 1 - Line Output - APx555 (Line In) |
Input Impedance | Mic= 8.9 kOhms 48v Off, 5.4 kOhms 48v ON, Line = 24.3 kOhms, Hi-Z= 1.5 MOhm Unbalanced, 3 MOhm Balanced |
Max Input Level | Mic = +17.6dBu (<0.003% THD), Line = +26.5dBu (<0.02% THD), Hi-Z = +24dBu (<0.02% THD) |
Minimum Gain | Mic= 8dB, Line = 0dB, Hi-Z = 3dB |
Maximum Gain | Mic = 68dB, Line = 60dB, Hi-Z = 63dB |
Equivalent Input Noise (EIN) | <-129.5dBu (150 Ohm source, unweighted), <-131dBu (150 Ohm source, A-weighted), <-135.5dBu (Inputs common, unweighted) |
Frequency Response | ±0.7dB (<1 Hz to >1000 kHz, Min Gain), ±0.7dB (<1 Hz to >1000 kHz, 35dB Gain), ±1dB (<1.5 Hz to 900 kHz, 63dB Gain), ±1dB (<5 Hz to >200 kHz, Max Gain) |
Phase Shift | <2.75° (20Hz to 20kHz, 40dB Gain), <4° (20Hz to 20kHz, 63dB Gain), <6° (20Hz to 20kHz, Max Gain) |
THD+N | <0.00025% (1kHz, 35dB Gain, +24dBu out) |
Intermodulation Distortion | <0.0006% (50Hz and 7kHz, 35dB gain, +20dBu out), <0.0005% (50Hz and 7kHz, 35dB gain, +15dBu out) |
Hi-Pass Filter (HPF) | 80Hz, -3dB, 12dB/Oct |
CMRR | >70dB, typ >85dB, 35dB gain, 10-20kHz, 100mV Common mode |
Slew Rate | 20V/uS, 35dB gain, +25dBu out |
48v LED Thresholds | Off = 48v Off, voltage fully discharged Amber = 48v voltage charging/discharging Red = 48v fully charged |
Signal LED Meter Thresholds | Blue = -20dBu Green = -12dBu Amber = +21dBu Red = +24dBu |
Max Output Level | Balanced XLR = +27.5dBu (<0.002% THD, 30dB Gain) Impedance Balanced ¼” Jack = +21.5dBu (<0.002% THD, 30dB Gain) |
Output Impedance | Balanced XLR = 150 Ohm Impedance Balanced 1/4” Jack = 150Ohm Balanced, 75 Ohm Unbalanced |
Link Max Output Level | Impedance Balanced 1/4” Jack = +21.8dBu (<0.006% THD) |
Link Output Impedance | Impedance Balanced 1/4” Jack = 75 Ohm Unbalanced, 150 Ohm Balanced (Buffered Output) |
Headphone Amplifier | |
Test Signal Path | APx555 (Line Out) - AUX Input - Headphone Output - APx555 (Line In) |
Frequency Response | -1dB, <1Hz to >70kHz |
THD | <0.0006% (-104.4dB) @ +20dBu, 1kHz, A-weighted, 300 Ohm load |
THD+N | <0.00085% (-101.4dB) @ +20dBu, 1kHz, A-weighted, 300 Ohm load |
Output Impedance | 0.33 Ohms |
Output Wattage | 250mW x 2 @ 600 Ohms, 1kHz |
650mW x 2 @ 220 Ohms, 1kHz | |
1.21W x 2 @ 100 Ohms, 1kHz | |
500mW x 2 @ 32 Ohms, 1kHz | |
Dynamic Range | 114.5dB A-weighted, AES17 method, 20Hz - 20kHz, 300 Ohm load |
Noise Floor | -93.5dBu A-weighted, 20Hz - 20kHz, 300 Ohm load |
Power | |
AC Requirements | 100V – 240V AC, 50 – 60 Hz |
Total Power Consumption | 24v, 1.25A DC, 30W |
Environmental | |
Operating Temperature | +1 to 35 degrees Celsius |
Storage Conditions | -20 to 50 degrees Celsius |
Dims/Weights | |
Unit | |
Width | 481mm (19") (Rackmount) |
Height | 44.45mm (1.75") (1u) |
Depth | 240mm (9.5") |
Unit Weight | 2.8kg (6.2lb) |
Shipping Carton | |
Width | 600mm (23.6") |
Height | 120mm (4.7") |
Depth | 350mm (13.8") |
Carton Weight | 4.1kg (9lb) |
ADC
No
Channels
2 (Stereo)
Hardware format
Rack
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