RME ADI-2 Pro AD/DA Converter and Headphone Amplifier

High-End AD/DA Converter and High-End Headphone Amp with USB2.0 Connectivity

RME's Anniversary reference AD/DA converter is a USB 2.0 DAC, USB 2.0 interface and a high-end headphone amplifier. Its design, unique specifications, user features and its ability to deliver crystal transparency, make it perfect for mastering and measurement applications as well as the ultimate tool for audiophiles everywhere.

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Part No:
RME-ADI2PRO
£1,299.00 £1,082.50
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The RME ADI-2 features premium components and intelligent circuitry across its half rack design. With RME's innovative advancement in Plug & Play technology, the comprehensive feature set is simple to set up and use. Based on incumbent connections, the ADI-2 Pro will intuitively switch to AD/DA converter, USB interface or analogue preamp mode. A precise mode can be set if required.

The ADI-2 Pro offers two servo-balanced analogue inputs on combo XLR/ TRS jacks, two separate balanced and unbalanced outputs on XLR and TRS, two stereo 'Extreme Power' headphone outputs on the front, an optical SPDIF I/O that also translates ADAT, plus coaxial SPDIF (RCA) and AES I/O (XLR) via an integrated breakout cable. This universal set of I/O options delivers premium and adaptable connectivity to those who take an uncompromising approach to audio.

The USB 2.0 port is completely Class Compliant (UAC 2) for connection with matching iOS devices and is also utilised for firmware updates. Including an external switched power supply and lockable connector, the ADI-2 Pro can be easily powered from battery, opening up mobile applications as well as isolated use cases.

An included Sample Rate Converter and RME's latest SteadyClock III technology mitigate any clocking problem between SPDIF and AES. Thanks to the most modern of AD/DA converters and RME's own FPGA-based Class Compliant core, the ADI-2 Pro offers sample rates of up to a mesmerising 768kHz for both AD (2) and DA (4) channels of conversion.

  • High-End AD/DA Conversion
  • 1x Stereo Analogue I/O
  • 1x ADAT or SPDIF I/O
  • 2x “Extreme Power“ Headphone Outputs
  • High-resolution IPS display
  • Auto Mode
  • 1 x USB 2.0
More Information
Specification

Analog Inputs

XLR

  • Input: XLR, servo-balanced
  • Input impedance balanced: 18 kOhm, unbalanced: 9 kOhm
  • Input sensitivity switchable +24 dBu, +19 dBu, +13 dBu, +4 dBu @ 0 dBFS
  • Digital Trim Gain range: 0 dB up to +6 dB
  • Signal to Noise ratio (SNR) @ +13/19/24 dBu: 120.x dB RMS unweighted, 124.x dBA
  • Signal to Noise ratio (SNR) @ +4 dBu: 119 dB RMS unweighted, 123 dBA
  • Frequency response @ 44.1 kHz, -0.1 dB: 5 Hz – 20.5 kHz
  • Frequency response @ 96 kHz, -0.5 dB: 3 Hz – 45.5 kHz
  • Frequency response @ 192 kHz, -1 dB: 2 Hz – 92.7 kHz
  • Frequency response @ 384 kHz, -1 dB: < 1 Hz – 124 kHz
  • Frequency response @ 768 kHz, -3 dB: < 1 Hz – 180 kHz
  • THD @ -1 dBFS: -120 dB, 0.0001 %
  • THD+N @ -1 dBFS: -113 dB, 0.00022 %
  • Channel separation: > 110 dB

 

TSR

As input XLR, but:

  • Input: 6.3 mm TRS jack, servo-balanced

 

Analog Outputs

1/2 XLR

  • Output level switchable +24 dBu, +19 dBu, +13 dBu, +4 dBu @ 0 dBFS
  • Signal to Noise ratio (SNR) @ +13/19/24 dBu: 117 dB RMS unweighted, 120 dBA
  • Signal to Noise ratio (SNR) @ +4 dBu: 115 dB RMS unweighted, 118 dBA
  • Frequency response @ 44.1 kHz, -0.1 dB: 0 Hz – 20.2 kHz
  • Frequency response @ 96 kHz, -0.5 dB: 0 Hz – 44.9 kHz
  • Frequency response @ 192 kHz, -1 dB: 0 Hz – 88 kHz
  • THD @ -1 dBFS: -110 dB, 0.00032 %
  • THD+N @ -1 dBFS: -108 dB, 0.00039 %
  • THD @ -3 dBFS: -116 dB, 0.00016 %
  • Channel separation: > 110 dB
  • Output impedance: 200 Ohm balanced, 100 Ohm unbalanced

 

1/2 TS (rear)

As output XLR, but:

  • Output: 6.3 mm TS jack, unbalanced
  • Maximum output level: +19 dBu
  • Signal to Noise ratio (SNR) @ +13/19 dBu: 117 dB RMS unweighted, 120 dBA
  • Signal to Noise ratio (SNR) @ +4 dBu: 113 dB RMS unweighted, 117 dBA
  • Output impedance: 100 Ohm

 

Phones 1/2

As Output 1/2 TS, but:

  • Output: 6.3 mm TRS jack, unbalanced, stereo
  • Output impedance: 0.1 Ohm
  • Signal to Noise ratio (SNR) @ +22 dBu: 117 dB RMS unweighted, 120 dBA
  • Signal to Noise ratio (SNR) @ +7 dBu: 114 dB RMS unweighted, 118 dBA
  • Output level at 0 dBFS, Ref Level +19 dBu, load 100 Ohm or up: +22 dBu (10 V)
  • Output level at 0 dBFS, Ref Level +4 dBu, load 8 Ohm or up: +7 dBu (1.73 V)
  • THD @ +18 dBu, 32 Ohm load, 1.2 Watt: -110 dB, 0.0003 %
  • THD+N @ + 18 dBu, 32 Ohm load: -107 dB, 0.00045 %
  • THD @ +14 dBu, 16 Ohm load, 0.94 Watt: -110 d

 

Output Phones 3/4

As Output Phones 1/2, but:

  • Output levels at 0 dBFS: Hi-Power off +7 dBu, Hi-Power On +22 dBu

 

Balanced Phones mode

As before, but:

  • Output levels at 0 dBFS: Hi-Power off +13 dBu (9.8 V), Hi-Power On +28 dBu (19.5 V)
  • Output impedance: 0.2 Ohm
  • Signal to Noise ratio (SNR) @ +28 dBu: 120 dB RMS unweighted, 123 dBA
  • Signal to Noise ratio (SNR) @ +13 dBu: 118.4 dB RMS unweighted, 122 dBA
  • Output level at 0 dBFS, Hi-Power On, load 150 Ohm or up: +28 dBu (19.5 V)
  • Output level at 0 dBFS, Hi-Power Off, load 8 Ohm or up: +13 dBu (9.8 V)
  • Max power @ 0.001% THD: 2.9 W per channel

 

Digital Inputs

General

  • Lock Range: 28 kHz – 200 kHz
  • Jitter suppression: > 50 dB (2.4 kHz)
  • Jitter when synced to input signal: < 1 ns
  • Accepts Consumer and Professional format

 

AES/EBU

  • 1 x XLR, transformer-balanced, galvanically isolated, according to AES3-1992
  • High-sensitivity input stage (< 0.3 Vpp)
  • SPDIF compatible (IEC 60958)

 

SPDIF coaxial

  • 1 x RCA, transformer-balanced, according to IEC 60958
  • High-sensitivity input stage (< 0.3 Vpp)
  • AES/EBU compatible (AES3-1992)

 

SPDIF 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 Vpp
  • Format Professional according to AES3-1992 Amendment 4
  • Single Wire mode, sample rate 28 kHz up to 200 kHz

 

SPDIF coaxial

  • 1 x RCA, according to IEC 60958
  • Output level 0.75 Vpp
  • Format Consumer SPDIF according to IEC 60958
  • Single Wire mode, sample rate 28 kHz up to 200 kHz

 

SPDIF optical

  • 1 x optical, according to IEC 60958
  • Format Consumer (SPDIF) according to IEC 60958
  • Sample rate 28 kHz up to 200 kHz

 

Digital

Clocks: Internal, AES In, SPDIF In, ADAT In

  • Low Jitter Design: < 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)        
  • Effective clock jitter influence on AD and 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 kHz up to 200

 

General

  • Included power supply: Internal switching PSU, 100 - 240 V AC, 2 A, 24 Watts
  • Standby power consumption: 50 mW
  • Idle power consumption: 10 Watts, Max. power consumption: 22 Watts
  • Idle current at 12 V: 850 mA (10 Watts)
  • Dimensions (WxHxD): 215 x 44 x 130 mm (8.5" x 1.73" x 5.1")
  • Weight: 1.0 kg ( 2.2 lbs)
  • Temperature range: +5° up to +50° Celsius (41° F up to 122°F)
  • Relative humidity: < 75%, non condensing