Used Universal Audio 2192 A/D, D/A Mastering converter

Short Description:

Mint condition Used 2 channel A/D. D/A mastering quality converter

Manufacturer Description:

The 2192 is the perfect two-channel master audio interface for every digital studio. It performs both analog

to digital (A/D) and digital to analog (D/A) conversion and provides a high-quality master clock source and

clock distribution for your entire studio. The internal digital clock of the 2192 was designed for extreme

stability and jitter-free operation, and its onboard phase aligned clock conditioner circuitry removes jitter

from external sources, so conversion quality is unaffected by clock source. Two separate word clock inputs

are provided, as well as AES/EBU, S/PDIF, and ADAT S-MUX inputs, and any of these can be used as

external clock sources. Four parallel word clock outputs allow the 2192 to be used as a master clock source

without the need to daisy-chain or cascade the clock through external devices.

The heart and soul of the 2192 is the analog circuitry used in its A/D and D/A converters. The analog signal

path uses DC-coupled, fully dual-differential, matched-FET, all discrete Class-A circuitry, resulting in

ultra-low noise, excellent transient response, and unmatched sound. No capacitors or DC servos are used

in the signal path since these degrade audio quality and image stability and introduce phase distortion.

Our no-compromise approach and extensive history in analog and digital circuit design ensure that your

converted signals are totally accurate and of the highest possible fidelity.

Analog signals are converted to digital in full 24-bit format, at sampling rates of up to 192kHz. During A/D

conversion, the digital signal is output to all digital outputs (AES/EBU, S/PDIF, or ADAT S-MUX)

simultaneously. Audio digitized at sample rates of 176.4 or 192kHz is carried over AES/EBU in single- or

dual-wire mode, and ADAT optical I/O utilizes S-MUX interleaving. The S/PDIF specification, which includes

192kHz 24-bit audio, is fully implemented. The 2192 D/A converters can also be set to output the signal

directly from the A/D converters, thus enabling “true confidence” analog monitoring of the digitized signal.

Digital to analog conversion is supported just as comprehensively. Any of the 2192 digital input sources

can be converted to analog, with selectable clock source: internal clock, the digital audio source signal, or

an external clock source separate from the digital audio. D/A conversion is always accomplished at the

sample rate of the digital audio source signal, even if the 2192 is synchronized to an external clock source

that is running at a multiple or submultiple of the digital audio sample rate. The 2192 can also transcode

(convert) digital audio between AES/EBU, S/PDIF, and ADAT S-MUX in real time, using any of the available

clock sources. Multi-segment LED bargraph metering is provided for all analog inputs and outputs, with

timed peak-hold digital overload (input) and digital peak (output) indicators. Finally, an internal universal

auto-sensing, filtered, multi-stage regulated power supply supports 100-240VAC and 50-60Hz power for

trouble-free operation world-wide.

Most of us at Universal Audio are musicians and/or recording engineers. We love the recording process, and

we really get inspired when tracks are beautifully recorded. Developing the Model 2192—as well as

Universal Audio’s entire line of quality digital and analog audio products designed to meet the needs of the

modern recording studio while retaining the character of classic vintage equipment—has been a very

special experience for me and for all who have been involved. While, on the surface, the rebuilding of UA

has been a business endeavor, it’s really been so much more than that: in equal parts a sentimental and

technical adventure.

Specifications:

Analog:

Inputs

Connectors 2x balanced XLR female connectors

Type DC coupled, dual-differential

Common-mode rejection ratio (CMRR) >90dB

Impedance ~1.5k ohms

Maximum input level +31dBu

Outputs

Connectors 2x balanced XLR male connectors

Type DC coupled, dual-differential

Impedance ~95ohms

Maximum output level +23dBu

Frequency Response (analog input to ADC to DAC +/- 0.1dB, 10Hz to 40kHz, -1dB at 74kHz

to analog output, referenced to 1kHz, Fs = 192kHz) (?see page 39)

Analog Level Trim

ADC input (Lo-Z source) Max input for 0dBFS: +30dBu

Min input for 0dBFS: +5.5dBu (3dBV)

DAC output (Hi-Z load) Max output at 0dBFS: +23dBu

Min output at 0dBFS: +4dBu (+1.8dBV)

Factory Trim (accessed via 15-turn, rear-panel mounted potentiometer)

Headroom +18dB

Reference level +4dBu = -18dBFS

Max input/output at 0dBFS +22dBu

Digital:

2-Channel S/PDIF

Connectors Dual stacked RCA

Type Unbalanced, transformer driven output,

AC coupled input

2-Channel AES/EBU

Connectors Transformer isolated, balanced XLR (x4)

Single wire and dual-wire modes

(for sample rates of 176.4kHz and 192kHz)

Input bits

SCMS Ignored

Preemphasis Ignored

Professional/consumer Ignored

Output bits

SCMS Not Set

Preemphasis Not Set

Professional/consumer Set to Professional

2-Channel ADAT Optical

Connectors Dual in-line optical TX/RX (reinforced)

Clock:

Sample Rate (internal) 44.1, 48, 88.2, 96, 176.4, 192kHz

Sample rate (external) +/- 12.5% vari-speed lock at all rates

4x BNC Clock Outputs 75 ohm, 5V CMOS drive

2x BNC Clock Inputs 75 ohm internal termination, AC coupled

1.2V(p-p) minimum, 5V(p-p) maximum,

50mA maximum over-voltage current

(20 ohms/volt)

BNC Clock In to Clock Out Delay 50ns maximum, negative edge aligned

when synchronized at multiple or

submultiple rate

Conversion:

A/D

Specifications _______________________________________________________________________

- 49 -

Dynamic range (measured using 118dB (A-weighted), 115dB (unweighted)

-38dBu = -60dBFS input at 1kHz) (?see page 38)

Frequency response (relative to 1kHz) +/- 0.02dB, 10Hz to 20kHz @ Fs=44.1kHz

+/- 0.04dB, 10Hz to 40kHz @ Fs=96kHz

Phase response <0.1°, 10Hz to 1kHz, -1.0° at 20kHz

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 122dB (A-weighted), 119dB (unweighted)

-60dBFS = -38dBu output at 1kHz) (?see page 38)

Frequency response (relative to 1kHz) +/- 0.03dB, 10Hz to 20kHz @ Fs=44.1kHz

+/- 0.04dB, 10Hz to 20kHz @ Fs=96kHz

Phase response <0.5°, 10Hz to 1kHz, -10° at 20kHz

Residual noise (200Hz-20kHz) < -145dBFS (-123dBu)

Total Harmonic Distortion +N (measured at 1kHz) -98dB, with +4dBu output

-103dB, with -10dBu output

Physical:

AC Line Connector IEC 3-pin power (safety ground

ties to chassis at entry point)

Voltage 100-240VAC, 50-60Hz, auto-sensing

Fuse Internal, type T 2A 250V

Power Consumption 40 Watts

Thermal 0° C to 50° C

Dimensions 1.75" H x 19" W x 12.5" D

(1RU standard 19" rack-mount chassis)

Weight 15 lbs. (with carton)