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Summary of Contents for Universal Audio 2192
- Page 1 Model 2192 Master Digital Audio Interface Manual Part Number: 65-0701 Revision 1.00 Universal Audio, Inc. 330 Encinal Street Santa Cruz, CA 95060-2101 (831) 466-3737 voice (831) 466-3775 fax www.uaudio.com...
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Page 2: Notice
Notice Important Safety Instructions Before using this unit, be sure to carefully read the applicable items of these operating instructions and the safety suggestions. Afterwards keep them handy for future reference. Take special care to follow the warnings indicated on the unit, as well as in the operating instructions. Water and Moisture –... -
Page 3: Fcc Compliance
Universal Audio, Inc. makes no warranties of any kind with regard to this manual, or the product(s) it refers to, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. -
Page 4: Table Of Contents
Contents Notice ..................2 Important Safety Instructions ................2 FCC Compliance ....................3 Disclaimer .......................3 Copyright......................3 Trademarks .....................3 Introduction ................7 Analog Ears, Digital Minds .................7 Features......................9 Specifications....................10 Front Panel ................13 Rear Panel..................... 14 Block Diagram ....................15 Connections ................16 AC Power Input .................... - Page 5 Controls ................... 21 LED Level Meters ..................... 21 Clock Source ....................21 Sample Rate Select..................23 Clock Status Lamp................... 24 Analog Outputs DAC Source Select ..............24 AES/SPDIF Controls ..................25 Digital Outputs Source Select................25 Power Lamp....................26 Power Switch ....................26 Clocking...................
- Page 6 Diagrams ................. 38 Frequency Response ..................38 Dynamic Range: A/D ..................39 Dynamic Range: D/A ..................40 Mastering Setup ..................... 40 Digital Audio Workstation Setup ................ 41 8-Channel Pro Tools Setup ................42 Index ..................43 List of Figures Figure 1: Front Panel Elements ..................13 Figure 2: Rear Panel Elements..................
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Page 7: Introduction
ADAT optical I/O with S-MUX interleaving. The S/PDIF specification, which includes 192kHz 24-bit audio, is fully implemented. The 2192 analog outputs can be set to monitor the converted analog inputs. In this scenario the D/A converters output the signals from the A/D converters, enabling “true confidence” analog monitoring of the digitized signal. - Page 8 (slaved) to an external clock source that is running at a multiple or submultiple of the 2192 sample rate. Subclocking occurs if the 2192 is synchronized to an external clock that is running at 2x or 4x the 2192 sample rate. Overclocking occurs if the 2192 is synchronized to an external clock that is running at 1/2 or 1/4 of the 2192 sample rate.
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Page 9: Features
Features • Ultra-low noise 44.1kHz – 192kHz A/D and D/A converters • Low jitter internal clock source provides 44.1, 48, 88.2, 96, 176.4 and 192kHz sampling rates • DC-coupled, fully dual-differential, matched-FET, all discrete Class-A, no-compromises analog signal path • No capacitors in the signal path to degrade sound quality or introduce phase distortion •... -
Page 10: Specifications
Specifications Analog • Inputs: 2x balanced XLR female connectors DC coupled, dual-differential Common-mode rejection ratio (CMRR): >90dB Impedance: ~1.5k ohms Maximum input level: +31dBu • Outputs: 2x balanced XLR male connectors DC coupled, dual-differential Impedance: ~95ohms Maximum output level: +23dBu •... - Page 11 Residual noise (200Hz-20kHz): < -145dBFS (-123dBu) Total Harmonic Distortion + Noise (measured at 1kHz): -110dB, with +4dBu input -114dB, with -10dBu input • D/A: Dynamic range (measured with -60dBFS = -38dBu output at 1kHz (See Figure 6: D/A Dynamic Range on page 40) 122dB (A-weighted), 119dB (unweighted) Frequency response (relative to 1kHz): +- 0.03dB, 10Hz to 20kHz @ Fs = 44.1kHz...
- Page 12 Digital • 2-Channel S/PDIF: Dual stacked RCA Unbalanced, transformer driven output AC coupled input • 2-Channel AES/EBU: Transformer isolated, balanced XLR (x4) Single wire and dual-wire modes (for sample rates above 96kHz) AES/SPDIF input bits: SCMS: Ignored Preempahsis: Ignored Professional/consumer: Ignored AES/SPDIF output bits: SCMS: Not set Preempahsis: Not Set...
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Page 13: Front Panel
Front Panel Figure 1 below displays the names of the 2192 front panel elements along with an index number. Table 1 below indicates the page number where a complete description of the indexed item can be found. Figure 1: Front Panel Elements... -
Page 14: Rear Panel
Rear Panel Figure 2 below displays the names of the 2192 rear panel elements along with an index number. Table 2 below indicates the page number where a complete description of the item can be found. Figure 2: Rear Panel Elements... -
Page 15: Block Diagram
Block Diagram Figure 3: Block Diagram... -
Page 16: Connections
Connections All 2192 connectors are on the rear panel of the unit. The only adjustable controls on the rear panel are the analog level trims (page 19). Each connector and its function are detailed below. AC Power Input AC power is input to the 2192 via a standard, detachable IEC power cable such as the one supplied with the unit. -
Page 17: S/Pdif Digital I/O
These outputs transmit independent high-quality word clock at the frequency specified by the Sample Rate Select (page 23). Four outputs are provided so you can use the 2192 as the master clock source for multiple devices simultaneously without cascading the clock through external devices, which can degrade the clock signal. -
Page 18: Adat Optical Digital I/O
Superclock (256x) is not supported. Vari-speed sync is supported. The 2192 BNC word clock inputs each provide an internal 75-ohm terminator. Word Clock Input 1 This word clock input is used for external synchronization when the Clock knob (page 21) set to Word 1. -
Page 19: Analog Line Trims
The analog outputs are calibrated at the factory so that a digital signal level of –18dBFS will output an analog level of +4dBu, for 18dB of headroom. The line outputs can drive high or low (600ohm) impedance inputs with no changes in level. Analog Line Trims The analog line trims are used to calibrate analog I/O signal levels to match external analog hardware. -
Page 20: Ground Isolation Jumpers
The 2192 is shipped from the factory with pin 1 connected to ground on all eight connectors. Important: Changes to internal jumpers should only be made by qualified personnel. -
Page 21: Controls
+22dB (adjustable using the rear panel Analog Line Trims for each channel). An analog signal level of +4dBu at 1kHz will illuminate the –18dB segment on the 2192 meters. Please note that frequencies below 50Hz will flicker, and may not be reported correctly. -
Page 22: Table 4: Clock Source & Sample Rate Interaction
2192! Internal When the Clock knob is set to Internal, the high-quality internal clock of the 2192 is used. At this setting clock inputs on the rear panel are ignored, and the internal sampling rate is determined by the Sample Rate knob. -
Page 23: Sample Rate Select
Note: The 2192 does not perform sample rate conversion. Sample Rate with External Clock If the 2192 is performing conversions while synchronized to an external clock, the Sample Rate is defined by a combination of the external clock rate and the Sample Rate knob. -
Page 24: Clock Status Lamp
(see Table 4 on page 22). Clock Status Lamp When the 2192 is locked (synchronized) to a clock source, the Clock Status lamp glows green. The lamp glows red when the clock is not locked. The clock must be locked for proper A/D and D/A conversions and transcoding. -
Page 25: Aes/Spdif Controls
Important: At this setting, the digital signal (AES or S/PDIF) routed to the analog outputs is determined by the AES/SPDIF switch. ADAT In When the Analog Outputs knob is set to ADAT In, the digital signal from the ADAT optical input (page 18) is routed to the D/A converters and analog outputs. -
Page 26: Power Lamp
2192 needs to be serviced by a qualified service technician. Power Switch The Power Switch activates the 2192. Power is on when the switch is in the up (I) position. When the switch is down (O), AC power is completely disconnected from the internal power supply, and only the safety ground remains connected to the chassis. -
Page 27: Clocking
(overclock) of the 2192 sample rate. Subclocking/Overclocking Subclocking occurs if the 2192 is synchronized to an external clock that is running at 2x or 4x the 2192 sample rate. Overclocking occurs if the 2192 is synchronized to an external clock that is running at 1/2 or 1/4 of the 2192 sample rate. -
Page 28: Analog To Digital Conversion
2192 is slaved to an external clock. Each operation is detailed below. A/D Using Internal Clock This is the simplest use of the 2192. In this configuration, the 2192 is the master system clock. Four word clock outputs are provided so the 2192 can be used as the master system clock without cascading the clock through external devices, which can degrade the clock signal. -
Page 29: A/D Using External Clock
4. Set the 2192 Clock knob to specify the digital input that the external clock is connected to. If the Clock knob is set to AES/SPDIF, use the AES/SPDIF switch to specify AES/EBU or S/PDIF. -
Page 30: Digital To Analog Conversion
D/A Using Internal Clock This is the simplest use of the 2192. In this configuration, the 2192 is the master system clock. Four word clock outputs are provided so the 2192 can be used as a master system clock source without cascading the clock through external devices, which can degrade the clock signal. -
Page 31: D/A Using Digital Audio Source Clock
3. Set the 2192 Clock knob to specify the digital input that the digital audio source signal is connected to (AES/SPDIF or ADAT). If the Clock knob is set to AES/SPDIF, use the AES/SPDIF switch to specify AES/EBU or S/PDIF. -
Page 32: D/A Using External Bnc Word Clock
D/A conversion is performed only when the 2192 is locked (the word clock must be running) and digital audio is present at the digital input. The Locked lamp glows green when the 2192 is successfully synchronized to an external clock source. -
Page 33: D/A Using Adat Clock With Aes/Spdif Audio
In this configuration, D/A conversion is accomplished on an AES/EBU or S/PDIF digital audio signal while the 2192 is synchronized to the clock at the ADAT input. The audio portion (if any) of the ADAT signal used as the clock source is ignored. -
Page 34: D/A Using Aes/Spdif Clock With Adat Audio
In this configuration, D/A conversion is accomplished on an ADAT digital audio signal while the 2192 is synchronized to the clock of an AES/EBU or S/PDIF signal. The audio portion (if any) of the external AES/SPDIF signal used as the clock source is ignored. -
Page 35: Transcoding
3. Set the 2192 Clock knob to Internal. 4. Set the 2192 Sample Rate knob to match the sample rate of the digital audio source signal. 5. Set the 2192 Digital Outputs knob to the digital audio source input (AES/SPDIF or ADAT). If the Digital Outputs knob is set to AES/SPDIF, use the AES/SPDIF switch to specify AES/EBU or S/PDIF. -
Page 36: Transcoding Using Digital Audio Clock
3. Set the 2192 Clock knob to specify the digital audio source input (AES/SPDIF or ADAT). If the Clock knob is set to AES/SPDIF, use the AES/SPDIF switch to specify AES/EBU or S/PDIF. -
Page 37: Transcoding Using Alternate Clock
AES/SPDIF switch to specify AES/EBU or S/PDIF. 5. Set the 2192 Digital Outputs knob to control to specify the digital input that the digital audio source signal is connected to (AES/SPDIF or ADAT). If the Digital Outputs knob is set to AES/SPDIF, use the AES/SPDIF switch to specify AES/EBU or S/PDIF. -
Page 38: Diagrams
Diagrams Frequency Response Figure 4: Frequency Response... -
Page 39: Dynamic Range: A/D
Dynamic Range: A/D Figure 5: A/D Dynamic Range... -
Page 40: Dynamic Range: D/A
Dynamic Range: D/A Figure 6: D/A Dynamic Range Mastering Setup Figure 7: Typical Mastering Setup... -
Page 41: Digital Audio Workstation Setup
Digital Audio Workstation Setup Figure 8: Typical DAW Setup... -
Page 42: 8-Channel Pro Tools Setup
8-Channel Pro Tools Setup Figure 9: Typical Pro Tools HD Setup... -
Page 43: Index
Index Clock Status, 13, 24 Clocking, 8, 27 CMOS, 17 A/D Using External Clock, 29 compatibility, 16 A/D Using Internal Clock, 28, 30 confidence monitoring, 25 AC Line, 12 Connections, 16, 17 AC Power Input, 16 Ground Isolation Jumpers, 20 consumer/professional bits, 17 AC voltage, 26 Contents, 4... - Page 44 Residual noise, 11 Thermal, 12 Total Harmonic Distortion, 11 Notice, 3 Trademarks, 3 Transcoding, 8, 25, 35 Transcoding Using Alternate S/PDIF, 12 Clock, 37 S/PDIF Digital I/O, 14, 17 Transcoding Using Digital Audio Optical Digital I/O, 18 Safety, 2 Clock, 35, 36 Output Level Meters, 13, 21 Sample Rate, 11 transformer coupled, 9...
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