| insert jack (¼” TRS) for outboard processors |
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| 2 balanced outputs (¼” TRS) |
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| 4 unbalanced outputs (RCA) |
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| S/PDIF digital I/O with w/ 2-channel PCM |
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| S/PDIF out also supports pass-through of AC-3/DTS surround-encoded content |
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| 1 x 1 MIDI I/O with activity LEDs |
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| headphone output (¼” TRS) with level control |
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| headphone A/B source switch for DJ-style cueing |
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| input/playback mix control for hardware direct monitoring |
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| mono switch for input/playback direct monitoring |
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| master output level control |
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| near zero-latency hardware direct monitoring |
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| low-latency ASIO software monitoring |
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| USB connection to computer |
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| powered via USB or optional AC power adapter |
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| Kensington lock port |
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| Mac and PC compatible; class compliant with Mac OS X 10.3.9 and higher |
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| * 16-bit/48kHz 2 x 4 operation is class-compliant. Driver installation required to access more I/O. |
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| Digital Audio Interface Specifications | 48kHz sampling rate unless otherwise stated |
Mic Inputs (A/D) |
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| Input Impedance | 2.7k Ohms unbalanced, 5.4k Ohms balanced |
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| Maximum Input Level | from +24dBu @ min gain, pad on to -40dBu @ max gain, no pad |
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| Channel-to-Channel Crosstalk | < -110dB |
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| SNR | -101dB, A-weighted |
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| Dynamic Range | 101dB, A-weighted |
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| THD+N | 0.005% (-86dB) @ -1dBFS, 1kHz |
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| Frequency Response | 20Hz to 20kHz, +/- 0.1dB |
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| Pre-amp Gain | >40dB |
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| Pad | -20dB pad |
Instrument Inputs (A/D) |
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| Input Impedance | >220k Ohm, unbalanced |
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| Maximum Input Level | From +22dBV @ min gain, pad on to -42dBV @ max gain no pad |
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| SNR | -100dB, A-weighted |
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| Dynamic Range | 100dB, A-weighted |
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| THD+N | 0.005% (-86dB) @ -1dBFS, 1kHz |
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| Frequency Response | 20Hz to 20kHz, +/- 0.1dB @ 48kHz sample rate |
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| Pre-amp Gain | >40dB |
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| Pad | -20dB pad |
Line Inputs (A/D) |
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| Input Impedance | 20k Ohms balanced and unbalanced |
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| Maximum Input Level | +4.1dBu balanced, +1.9dBV unbalanced |
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| Channel-to-Channel Crosstalk | < -110dB |
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| SNR | -101dB, A-weighted |
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| Dynamic Range | 101dB, A-weighted |
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| THD+N | 0.005% (-86dB) @ -1dBFS, 1kHz |
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| Frequency Response | 20Hz to 20kHz, +/- 0.1dB @ 48kHz sample rate
20Hz to 40kHz, +/- 0.1dB @ 96kHz sample rate |
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| Pad | -20dB pad |
Input Inserts (analog) |
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| Maximum Level Send | +6dBV, unbalanced |
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| Maximum Level Return | +6dBV, unbalanced |
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| THD+N | 0.00281% (-91dB) @ -1dB from max level, 1kHz |
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| Frequency Response | 20Hz to 40kHz, +/- 0.1dB |
Line Outputs (D/A) |
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| Output Impedance | 150 Ohms unbalanced, 300 Ohms balanced |
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| Maximum Output Level | +1.8dBV, unbalanced
+10.1dBu, balanced |
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| Channel-to-Channel Crosstalk | < -108dB |
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| SNR | -103dB, A-weighted |
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| Dynamic Range | 103dB, A-weighted |
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| THD+N | 0.005% (-86dB) @ -1dBFS, 1kHz |
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| Frequency Response | 20Hz to 20kHz, +/- 0.3dB @ 48kHz sample rate |
Headphone Output (D/A) |
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| Maximum Output | -2.5dBV at THD < 0.05% into 32 ohms |
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| Working Range | 32 to 600 ohms |
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| | I/O | Bit Depth | Sample Rate (kHz) | | | With Drivers | 4 x 4 | 16 | 44.1/48 | | | 2 x 4 | 24 | 44.1/48 | | | 2-in OR 2-out | 24 | 88.2/96 | | | Class compliant | 2x4 | 16 | 44.1/48 |
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