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RME ADI-2 DAC FS Ultra-Fidelity PCM/DSD 768 kHz DA Converter

BH #RMADI2DACFS • MFR #ADI2 DAC FS
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RME ADI-2 DAC FS Ultra-Fidelity PCM/DSD 768 kHz DA Converter
Key Features
  • Studio-Quality 2-Channel USB DAC
  • High-End Headphone Amplifier
  • S/PDIF & ADAT Playback
  • DSD up to 768 kHz / DSD256
The RME ADI-2 DAC FS is a two-channel digital-to-analog converter for the discerning audiophile or engineer. It offers 32-bit conversion up to 768 kHz, making it compatible with high-resolution PCM formats and even DSD256. Additionally, the ADI-2 is compatible with iOS devices with apposite adapters, so you can enjoy audio streamed off your tablet or iPhone in a high-quality manner.
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RME ADI2 DAC FS Overview

The RME ADI-2 DAC FS is a two-channel digital-to-analog converter for the discerning audiophile or engineer. It offers 32-bit conversion up to 768 kHz, making it compatible with high-resolution PCM formats and even DSD256. Additionally, the ADI-2 is compatible with iOS devices with apposite adapters, so you can enjoy audio streamed off your tablet or iPhone in a high-quality manner.

For connections, the ADI-2 DAC FS offers stereo RCA outputs, stereo XLR connections, a 1/4" headphone output, and a low-noise IEM output. You can feed digital signal to the unit over USB, S/PDIF coaxial, S/PDIF Optical, or ADAT.

The built-in headphone amplifier provides low THD values even with 32- or 16-Ohm headphones, ensuring a transparent and crystal-clear sound. Onboard DSP allows you to dial in crossfeed, or instantiate a precise EQ for your exact predilections. This DSP also offers other features, such as a loudness contour reminiscent of old HiFi systems, and M/S encoding or decoding.

A high-resolution graphical operation surface makes operating the unit a breeze, as do the three push-button encoders and four dedicated-menu buttons. Included with the ADI-2 DAC FS are a remote control, an external power supply, a power cord, and a USB cable.

32-Bit / 768 kHz Converter
The ADI-2 DAC is a 2-channel digital to analog converter in a half-rack enclosure. 32-bit / 768 kHz converters offer a signal to noise ratio up to 120 dBA.
Powerful DSP
Powerful, built-in DSP adds useful audio processing, including a 5-band parametric EQ, fast Bass/Treble adjustment, Crossfeed, Loudness control, and more.
Easy to Operate
Operation is quick and easy through three encoders, with push-button functionality, as well as four buttons to access dedicated menus. The unit remembers all current settings, even the menu position.
Digital Inputs
Class Compliant UAC 2 enables up to 768 kHz sample rate on an iPad. The same is available on computers for high resolution of PCM, DXD, and DSD at up to 768 kHz / DSD256. SPDIF coaxial and optical can be used alternately. SPDIF optical also supports two channels of ADAT operation, at up to 192 kHz.
A Panoply of Outputs
The balanced and unbalanced outputs are fitted with both XLR and RCA jacks. The unit uses a fully-balanced and DC-coupled circuit design. The Extreme Power headphone output provides reference-grade sound and headroom. RME's IEM output offers low-noise operation for today's super-sensitive in-ear monitors.
Level Settings
To maintain the full dynamic range within the best operating level, discrete 4-stage reference-level settings were utilized (-5, +1, +7, +13 dBu). The digital volume control of the ADI-2 DAC operates distortion free over a range of 190 dB, staying out of the sound's way.
Steady Clocking
RME's SteadyClock FS performs in all clock modes. Thanks to highly-efficient jitter suppression, the DA-conversion always operates on a high sonic level, being completely independent from the quality of the incoming clock signal.

RME ADI2 DAC FS Specs

Key Specs
Form Factor
Desktop
Converter Type
AD/DA Converter
Number of Channels
2
Analog Audio I/O
2x XLR 3-Pin Balanced Output
1x Stereo RCA Coaxial Unbalanced Output
1x 1/4" TRS Headphone Output
1x 1/8" / 3.5 mm Headphone Output
Digital Audio I/O
1x RCA Coaxial AES3 / S/PDIF Input
1x TOSLINK Optical ADAT / S/PDIF Input
Converter Type
AD/DA Converter
Number of Channels
2
Display
Color IPS
Connectivity
Analog Audio I/O
2x XLR 3-Pin Balanced Output
1x Stereo RCA Coaxial Unbalanced Output
1x 1/4" TRS Headphone Output
1x 1/8" / 3.5 mm Headphone Output
Digital Audio I/O
1x RCA Coaxial AES3 / S/PDIF Input
1x TOSLINK Optical ADAT / S/PDIF Input
Host Connection
1x USB-B
Host Connection Protocol
USB 2.0
Sync I/O
No
Network I/O
No
MIDI I/O
No
Performance
Frequency Response
Analog Outputs:
0 Hz to 20.2 kHz +0/-0.1 dB (at 48 kHz)
0 Hz to 44.9 kHz +0/-0.5 dB (at 96 kHz)
0 Hz to 88 kHz +0/-1 dB (at 192 kHz)
0 Hz to 115 kHz +0/-1 dB (at 384 kHz)
0 Hz to 109 kHz +0/-3 dB (at 768 kHz)
Maximum Output Level
XLR Outputs:
+19 dBu at 0 dBFS (Switchable)
+13 dBu at 0 dBFS (Switchable)
+7 dBu at 0 dBFS (Switchable)
+1 dBu at 0 dBFS (Switchable)
RCA Outputs:
+13 dBu at 0 dBFS
1/4" Outputs:
+22 dBu at 0 dBFS
1/8" / 3.5 mm Headphone Outputs:
-3 dBu at 0 dBFS
Headphone Output Power
1/4":
1500 mW per Channel (Max, 0.001% THD)
1/8" / 3.5 mm:
40 mW per Channel into 8 Ohms (Max, 0.001% THD)
Impedance
XLR Outputs:
200 Ohms (Balanced)
100 Ohms (Unbalanced)
1/4" Headphone Outputs:
0.1 Ohms (Unbalanced)
SNR
XLR Outputs:
117 dB RMS (Unweighted, at +19 dBu)
120 dBA (A-Weighted, at +19 dBu)
115.4 dB RMS (Unweighted, at +1 dBu)
118.9 dBA (A-Weighted, at +1 dBu)
RCA Outputs:
117 dB RMS (Unweighted, at +13 dBu)
120 dBA (A-Weighted, at +13 dBu)
114 dB RMS (Unweighted, at +1 dBu)
116 dB RMS (Unweighted, at +7 dBu)
117 dBA (A-Weighted, at +1 dBu)
119 dBA (A-Weighted, at +7 dBu)
109 dB RMS (Unweighted, at -5 dBu)
113 dBA (A-Weighted, at -5 dBu)
1/4" Outputs:
117 dB RMS (Unweighted, at +22 dBu)
120 dBA (A-Weighted, at +22 dBu)
116 dB RMS (Unweighted, at +7 dBu)
119 dBA (Unweighted, at +7 dBu)
1/8" / 3.5 mm Headphone Outputs:
115 dB RMS (Unweighted, at -3 dBu)
118 dBA (A-Weighted, at -3 dBu)
THD
XLR Outputs:
-112 dB / 0.00025% (at -1 dBFS)
-116 dB / 0.00016% (at -4 dBFS)
RCA Outputs:
-112 dB / 0.00025% (at -1 dBFS)
-116 dB / 0.00016% (at -4 dBFS)
1/4" Outputs:
-110 dB / 0.0003% (at +18 dBu)
-110 dB / 0.0003% (at +14 dBu)
THD+N
XLR Outputs:
-110 dB / 0.00032% (at -1 dBFS)
RCA Outputs:
-110 dB / 0.00032% (at -1 dBFS)
1/4" Outputs:
-107 dB / 0.00045% (at +18 dBu, 32-Ohm Load)
Channel Separation
Analog Outputs:
> 120 dB
Digital Audio
Sample Rates
Internal:
44.1 to 768 kHz
External:
44.1 to 200 kHz
Sync Sources
Internal, S/PDIF
Clocking
Lock Range: 44 to 200 kHz
Jitter Suppression: > 50 dB (2.4 kHz)
Compatibility
OS Compatibility
Computer: Windows 7 or Later / macOS 10.6 or Later
Mobile: iPadOS Only
OS Compatibility
Windows 7 or Later
macOS 10.6 or Later
7 or Later
Processor Requirement
Intel Core i3
Required Hardware
Available USB 2.0 Port (USB 3.0 / 3.1 Gen 1 Port, or)
Dock to USB Adapter 30-Pin, Lightning to USB Adapter (or)
Power
AC Input Power
100 to 240 VAC, 50 / 60 Hz
AC/DC Power Adapter
12 VDC at 2 A
Power Consumption
120 mW (Standby)
7 W (Idle)
18 W (Maximum)
Physical
Operating Conditions
41 to 122°F / 5 to 50°C up to 75% Humidity
Dimensions
8.5 x 5.9 x 2" / 21.5 x 15 x 5.2 cm
Weight
2.2 lb / 1.0 kg
Packaging Info
Package Weight
4.5 lb
Box Dimensions (LxWxH)
13.75 x 8.5 x 3.34"

RME ADI2 DAC FS Reviews

See any errors on this page? Let us know

can RME ADI 2 DAC be powerful enough to drive ...

can RME ADI 2 DAC be powerful enough to drive Audeze lcd 3?
Asked by: Van
Yes, no problem there. Some popular headphones are compared at the link below, to show that the ADI-2 Pro and DAC models do not need any extra amplifier. https://www.youtube.com/watch?v=15Zyuo-cOIk
Answered by: Synthax US
Date published: 2022-09-06

Can I use it to input coaxial SPDIF signal into ...

Can I use it to input coaxial SPDIF signal into my computer?
Asked by: Luca
You could capture the SPDIF input on a computer by enabling the USB loopback function (can be pre or post DSP). This would send the incoming SPDIF signal back up to the computer over USB (again either pre or post DSP).
Answered by: Roger Adam
Date published: 2024-10-09

Is this the latest model with the ESS 9028 chip?

Is this the latest model with the ESS 9028 chip?
Asked by: John
Yes, the RME ADI-2 DAC FS Ultra-Fidelity PCM/DSD 768 kHz DA Converter stock at B&H, at the time of this writing, includes the latest version of the ESS D/A chip.
Answered by: Matt Z
Date published: 2022-02-05

Can it work plugged to 230v European socket?

Can it work plugged to 230v European socket?
Asked by: Anonymous
Yes this will accept 230volt but you will need to change the shape of the plug.
Answered by: James Cruz
Date published: 2020-12-07

Can i hook this to an amp and powered subwoofer ...

Can i hook this to an amp and powered subwoofer at tbe same time
Asked by: Scott
Possibly, by using balanced outputs to the amp, and RCA to the subwoofer. Ask this question on the (great) RME forum to be sure!
Answered by: Jacek
Date published: 2020-05-25

Will this DAC work to connect the Optical, or ...

Will this DAC work to connect the Optical, or Coax., output/s of a CD Transport to this DAC, and the RCA/analog outputs of this DAC to the line-level RCA-analog CD input of my Musical Fidelity Preamplifier?
Asked by: Leigh A.
Yes, you can connect the optical or coaxial outputs from a CD transport to the inputs on the RME ADI-2 DAC FS Ultra-Fidelity PCM/DSD 768 kHz DA Converter and then use its analog RCA outputs to connect to the line level RCA analog input on your preamplifier.
Answered by: Lisa S
Date published: 2022-07-13

How does this work? I plug it into my computer ...

How does this work? I plug it into my computer usb port and then I can listen to high quality audio through headphones?
Asked by: Elmer
Yes. The RME ADI-2 DAC FS Ultra-Fidelity PCM/DSD 768 kHz DA Converter is a two-channel digital-to-analog converter that offers 32-bit conversion up to 768 kHz for compatibility with high-resolution PCM formats and DSD256. The ADI-2 connects to your computer and you can listen through headphones and/or connect speakers to the RCA or XLR outputs.
Answered by: Lisa S
Date published: 2023-01-23

Can I use it to acquire SPDIF signal with my ...

Can I use it to acquire SPDIF signal with my computer?
Asked by: Luca
Yes, you can capture digital inputs via the USB connection. SPDIF (optical or coaxial) is available as an input source, and the latest firmware adds a "loopback" feature that allows you to capture playback signal as an input as well.
Answered by: Synthax US
Date published: 2021-10-07
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