RME ADI-2 Pro Reference AD/DA Converter with Extreme Power Headphone Amplifiers

RME ADI-2 Pro Reference AD/DA Converter with Extreme Power Headphone Amplifiers

RME ADI-2 Pro Reference AD/DA Converter with Extreme Power Headphone Amplifiers

B&H # RMADI2PRO MFR # ADI2PRO
RME ADI-2 Pro Reference AD/DA Converter with Extreme Power Headphone Amplifiers

RME ADI-2 Pro Reference AD/DA Converter with Extreme Power Headphone Amplifiers

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Product Highlights

  • High-Fidelity 32-Bit/768 kHz Audio
  • 2-Channel A/D, 4-Channel D/A Converter
  • 2 x Extreme Power Headphone Outputs
  • PCM/DSD Record/Playback
  • SteadyClock III Technology
  • USB 2.0 Class Compliant
  • Supports AES/EBU, ADAT, S/PDIF
  • High-Resolution Display
  • Standalone Mode
  • Mac OS X, iOS, Windows, Android
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  • 1Description

The ADI-2 Pro from RME is a versatile reference-class AD/DA converter which can be used as a USB audio interface, USB DAC with Extreme Power headphone amplifiers, or format converter with digital monitoring. Housed in a compact, half-rack enclosure, it delivers pristine 32-bit/768 kHz audio quality to audio engineers and audiophiles alike, for studio, home, and mobile applications ranging from analog/digital recording, PCM/DSD recording and playback, precise audio measurements, or as a high-fidelity frontend and headphone amp for iPhone/iPad/Android devices.

The ADI-2 Pro is equipped with six input sources and eight output paths, for simultaneous 2-channel analog-to-digital input conversion and 4-channel digital-to-analog output conversion. The I/O options include two servo-balanced analog line inputs, two separate balanced and unbalanced analog outputs, one optical S/PDIF I/O which also supports two channels of ADAT operation, and, via the included digital breakout cable, one coaxial S/PDIF I/O and one AES/EBU I/O.

The unit supports all sample rates between 32 kHz and 768 kHz, and delivers a flat frequency response with an impressive 124 dBA signal-to-noise ratio. The company's SteadyClock III efficiently suppresses jitter in all clock modes, ensuring that the AD/DA conversion's sonic quality remains consistent, independently from the quality of the incoming clock signal.

The two Extreme Power headphone outputs provide high-end monitoring options optimized for low- and high-impedance headphones. They feature an Advanced Balanced mode which delivers a balanced signal path from the DAC straight to the phone, with optimized frequency response and a maximum output level of +28 dBu. A powerful DSP adds all kinds of useful audio processing, including 5-band parametric EQ, fast Bass/Treble adjustment, Crossfeed, and a sophisticated Loudness function.

The ADI-2 Pro features a high-resolution ISP LCD panel which eases operation and displays signal metering of all I/Os, current digital states of S/PDIF, AES, USB, a 30-band analyzer, and more. The unit can be used as a standalone, and operated with three push-button encoders and four buttons to access dedicated menus.

Features
  • High-fidelity anniversary reference-class 768 kHz AD/DA converter 
  • High-resolution PCM/DSD recording and playback
  • Two Extreme Power headphone amplifiers for audiophile-quality monitoring
  • USB 2.0 port, fully class-compliant (UAC 2)
  • Multi-format converter (AES, S/PDIF, ADAT) with monitoring function, solves any clocking problem between formats
  • Low Latency – AD/AD converters with low-latency filters, offer super-fast conversion
  • Ultimate iPhone/iPad/Android DAC
  • High-end AD/DA frontend for audio measurements
  • High-resolution display for graphic operation – with Peak Level meters, 30-band analyzer, State Overview screen for listing current states of SPDIF, AES, USB and clock
  • Standalone mode
  • Compact and lightweight design allows for mobile use
  • External, switched power supply with lockable connector included – unit can easily be powered from a battery (available separately)
  • DIGICheck utility software included –  with Stereo- and Multi-Channel level meter, Analyzer, Bit Statistics & Noise, ITU1770 meter, Goniometer, Surround level meter, Totalyzer
  • Compatible with Windows, Mac OS X, iOS, and any device that supports class-compliant USB audio (including Android)
  • Uses RME's MADIface series driver with Windows, for full WDM and ASIO compatibility, and highest performance
High-Resolution Audio
  • 2-channels A/D converter, 4-channels D/A converter
  • 32-bit/768 kHz digital audio
  • Supports all sample rates between 32 kHz and 768 kHz
  • 124 dBA signal-to-noise ratio
  • SteadyClock III technology ensures perfect jitter reduction and stable clocking, with internal or external clock signal
  • Digital signal processing with 5-band parametric EQ, fast Bass/Treble adjustment, Binaural Crossfeed, spectral analysis, Loudness sound control
Extreme Power Headphone Amplifiers
  • Two independent Extreme Power driver circuits with two stereo D/A converters – optimized for both high- and low-impedance headphones
  • 120 dBA SNR – no audible hum, noise or distortion, fully transparent, crystal-clear sound at any volume setting
  • 5-band Parametric EQ – lets you adjust the headphone sound to match your hearing curve, or compensate for differences between left/right ear
  • Bass/Treble – to adjust sound to your personal taste
  • Loudness – lets you choose how much maximum gain for bass and treble should occur at lower volume settings
  • Advanced Balanced mode delivers balanced signal path from the DAC straight to the phone, with optimized frequency response, super-low output impedance (0.2 Ohms), and a maximum output level of +28 dBu
Connectivity
  • Two servo-balanced analog inputs on combo XLR / TRS jacks
  • Two separate, balanced and unbalanced analog outputs on XLR and TS jacks
  • Two stereo Extreme Power headphone outputs on the front
  • One optical S/PDIF I/O, also supports 2 channels of ADAT operation
  • One coaxial S/PDIF I/O (RCA) and one AES/EBU I/O (XLR) via included digital breakout cable (9-pin D-sub to 2 x XLR and 2 x RCA)
Modes
  • The unit will turn into different operating modes depending on the connected cables
  • Preamp Mode / analog in to analog out – this mode is active when no digital input signal and no USB is detected
  • AD/DA Converter Mode (analog in to all digital outs, digital in to all analog outs) – this mode becomes active as soon as a digital signal is sensed by the unit
  • USB or Interface Mode (USB is detected and all inputs are routed to USB, all outputs are fed from USB) – provides 6 channels (Analog 1/2, AES, SPDIF) of recording, 8 channels (Analog 1/2/3/4, AES, S/PDIF) of playback, and works as iPad frontend at up to 192 kHz sample rate
In the Box
RME ADI-2 Pro Reference AD/DA Converter with Extreme Power Headphone Amplifiers
  • External Power Supply
  • Power Cord
  • Digital Breakout Cable AES / S/PDIF (BO968)
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description
    Analog Inputs
    XLR Audio Input Input: XLR, servo-balanced

    Input Impedance: 18 kOhms (balanced), 9 kOhms (unbalanced)

    Input Sensitivity: +24 dBu, +19 dBu, +13 dBu, +4 dBu at 0 dBFS (switchable)

    Digital Trim Gain Range: 0 to +6 dB

    Signal to Noise Ratio (SNR) at +13 / 19 / 24 dBu: 120 x dB RMS unweighted, 124.x dBA 

    Signal to Noise Ratio (SNR) at +4 dBu: 119 dB RMS unweighted, 123 dBA 

    Frequency Response at 44.1 kHz, -0.1 dB: 5 Hz to 20.5 kHz

    Frequency Response at 96 kHz, -0.5 dB: 3 Hz to 45.5 kHz

    Frequency Response at 192 kHz, -1 dB: 2 Hz to 92.7 kHz

    Frequency Response at 384 kHz, -1 dB: < 1 Hz to 124 kHz

    Frequency Response at 768 kHz, -3 dB: < 1 Hz to 180 kHz

    THD at -1 dBFS: -116 dB, 0.00016 %

    THD+N at -1 dBFS: -112 dB, 0.00025 %

    Channel Separation: > 110 dB

     

    TRS Audio Input Same as XLR input but:

    Input: 1/4" / 6.3 mm TRS jack, servo-balanced

     

    Analog Outputs
    XLR Audio Output Output Level: +24 dBu, +19 dBu, +13 dBu, +4 dBu at 0 dBFS (switchable)

    Signal to Noise Ratio (SNR) at +13 / 19 / 24 dBu: 117 dB RMS unweighted, 120 dBA

    Signal to Noise Ratio (SNR) at +4 dBu: 115 dB RMS unweighted, 118 dBA

    Frequency Response at 44.1 kHz, -0.1 dB: 0 Hz to 20.2 kHz

    Frequency Response at 96 kHz, -0.5 dB: 0 Hz to 44.9 kHz

    Frequency Response at 192 kHz, -1 dB: 0 Hz to 88 kHz

    THD at -1 dBFS: -112 dB, 0.00025 %

    THD+N at -1 dBFS: -110 dB, 0.00032 %

    THD at -3 dBFS: -116 dB, 0.00016 %

    Channel Separation: > 110 dB

    Output Impedance: 200 Ohms (balanced), 100 Ohms (unbalanced)

     

    TS (Rear) Same as XLR output but:

    Output: 1/4" / 6.3 mm TS jack, unbalanced

    Maximum Output Level: +19 dBu

    Signal to Noise Ratio (SNR) at +13/19 dBu: 117 dB RMS unweighted, 120 dBA

    Signal to Noise Ratio (SNR) at +4 dBu: 113 dB RMS unweighted, 117 dBA

    Output Impedance: 100 Ohms

     

    Phones 1/2 Same as TS (Rear) output but:

    Output: 1/4" / 6.3 mm TRS jack, unbalanced, stereo

    Output Impedance: 0.1 Ohm

    Signal to Noise Ratio (SNR) at +22 dBu: 117 dB RMS unweighted, 120 dBA

    Signal to Noise Ratio (SNR) at +7 dBu: 114 dB RMS unweighted, 118 dBA

    Output Level at 0 dBFS, Ref Level +19 dBu, Load 100 Ohms or Up: +22 dBu (10 V)

    Output Level at 0 dBFS, Ref Level +4 dBu, Load 8 Ohms or Up: +7 dBu (1.73 V)

    THD at +18 dBu, 32 Ohms Load, 1.2 W: -110 dB, 0.0003 %

    THD+N at + 18 dBu, 32 Ohms Load: -107 dB, 0.00045 %

    THD at +14 dBu, 16 Ohms load, 0.94 W: -110 dB, 0.0003 %

    Maximum Power at 0.001% THD: 1.5 W per channel

     

    Phones 3/4 Same as Phones 1/2 output but:
    Output Levels at 0 dBFS: +7 dBu (Hi-Power off), +22 dBu (Hi-Power on)
    Balanced Phones Mode As before, but:

    Output levels at 0 dBFS:  +13 dBu, 9.8 V (Hi-Power off), +28 dBu, 19.5 V (Hi-Power on)

    Output Impedance: 0.2 Ohm

    Signal to Noise Ratio (SNR) at +28 dBu: 120 dB RMS unweighted, 123 dBA

    Signal to Noise Ratio (SNR) at +13 dBu: 118.4 dB RMS unweighted, 122 dBA

    Output Level at 0 dBFS, Hi-Power on, Load 150 Ohms or Up: +28 dBu, 19.5 V

    Output Level at 0 dBFS, Hi-Power off, Load 8 Ohms or Up: +13 dBu, 9.8 V

    Maximum Power at 0.001% THD: 2.9 W per channel

     

    Digital Inputs
    General Lock Range: 28 to 200 kHz

    Jitter suppression: > 50 dB (2.4 kHz)

    Jitter: < 1 ns (when synced to input signal)

    Accepts Consumer and Professional format 

     

    AES/EBU 1 x XLR, transformer-balanced, galvanically isolated, according to AES3-1992

    High-sensitivity input stage (< 0.3 V p-p)

    S/PDIF compatible (IEC 60958) 

     

    S/PDIF Coaxial 1 x RCA, transformer-balanced, according to IEC 60958
    High-sensitivity input stage (< 0.3 V p-p)
    AES/EBU compatible (AES3-1992)
    S/PDIF Optical 1 x optical, according to IEC 60958
    ADAT compatible
    Digital Outputs
    AES/EBU 1 x XLR, transformer-balanced, galvanically isolated, according to AES3-1992
    Output level 2.7 V p-p
    Format Professional according to AES3-1992 Amendment 4
    Single Wire mode, sample rate 28 to 200 kHz
    S/PDIF Coaxial 1 x RCA, according to IEC 60958
    Output level 0.75 V p-p
    Format Consumer S/PDIF according to IEC 60958
    Single Wire mode, sample rate 28 to 200 kHz
    S/PDIF Optical 1 x optical, according to IEC 60958
    Format Consumer (S/PDIF) according to IEC 60958
    Sample rate 28 to 200 kHz
    Digital
    Clocking Clocks: Internal, AES in, S/PDIF in, ADAT in

    Jitter: < 1 ns in PLL mode, all inputs

    Internal Clock: < 800 ps Jitter, Random Spread Spectrum

    Jitter Suppression of External Clocks: > 50 dB (2.4 kHz)

    Clock Jitter on AD/DA Conversion: Near zero

    PLL ensures zero dropout, even at more than 100 ns jitter

    Additional Digital Bitclock PLL for trouble-free varispeed ADAT operation

    Supported Sample Rates for External Clocks: 28 to 200 kHz

    Internally Supported Sample Rates: 44.1 to 768 kHz

     

    General
    System Requirements Compatible with any device that supports class-compliant USB audio, including Android

     

    Mac: OS X 10.6 or higher (Intel)

    Windows: 7 or higher

    1 x USB 2.0 or USB 3 port

    Computer with at least Intel Core i3 CPU

    iOS: 7 or higher

    Dock or Lightning to USB adapter

    Power Included Power Supply: External switching PSU, 100-240 VAC, 12 VDC, 2 A, 24 W
    Standby Power Consumption: 50 mW
    Idle Power Consumption: 10 W
    Maximum Power Consumption: 22 W
    Idle Current at 12 V: 850 mA (10 W)
    Environment Temperature Range: 41 to 122° F / 5 to 50° C
    Relative Humidity: < 75%, non-condensing
    Dimensions (W × H × D) 8.5 x 1.73 x 5.1" / 215 x 44 x 130 mm
    Weight 2.2 lb / 1.0 kg
    Packaging Info
    Package Weight 4.65 lb
    Box Dimensions (LxWxH) 13.6 x 8.6 x 3.3"

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