RME ADI-2 DAC FS Ultra-Fidelity PCM/DSD 768 kHz DA Converter Headphone Amp/DAC
Updated with ESS ES9028Q2M
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Latest Version with ESS ES9028Q2M
The ADI-2 DAC FS is the home and hi-fi optimized version of the ADI-2 Pro, a studio AD/DA converter of the highest quality. With many fresh ideas, innovative features and numerous useful functions, the ADI-2 DAC quickly became the reference. Thanks to its combination of high-end DA conversion with two exceptional headphone IEM outputs and remote control, it has received countless enthusiastic reviews for its sound, flexibility, and technical capabilities.
The current version of the ADI-2 DAC comes with an extended remote control, a further improved DA conversion and an adapted analogue output stage for even better noise and distortion values. To address the home and HiFi users, RME exchanged some of the Pro's studio features with typical home and HiFi ones. With an adapted feature set and much-simplified operation RME proudly presents the ADI-2 DAC. Built on the technology, concept and features of the ADI-2 Pro, the DAC concentrates on DA conversion in top high-end quality, along with two exceptional headphones and IEM outputs.
The DAC
Packed into the compact half 19” format factor, this little gem is filled with the finest high-end electronics, offering a reference class conversion from SPDIF coaxial, SPDIF optical (ADAT compatible) and USB to RCA, XLR, TRS and mini-TRS.
As the most versatile DAC available, the ADI-2 DAC offers balanced/unbalanced analogue I/Os, an Extreme Power headphone output, a super low noise IEM output, SteadyClock FS, 4-stage hardware output level control, DSP-based signal processing, external power supply operation, Class Compliant USB compatibility, sample rates up to 768 kHz as well as DSD and Direct DSD playback. The SPDIF input signal can even be recorded via USB - as one would expect from RME the DAC is a true 2 channel Full Duplex audio interface.
All these improvements are completely transparent in the previous menu navigation. There are no changes in operation, features and behaviour compared to the predecessor, which is why neither appearance nor name has changed. The only difference: with 'Low Dispersion' another digital filter is available for selection. Explanations for this filter can be found in the detailed manual of the ADI-2 DAC.
Super Low Noise for IEM lovers
The headphone revolution not only brought headphones but also IEMs (in-ear monitors) back into the attention of audiophiles and music lovers. Modern IEMs have a reference sound that easily competes with bulky over-ear headphones, making them not only a mobile alternative but also an interesting solution in home.
Modern IEMs are extremely sensitive and operate on very low voltages. As a side effect they uncover the noise floor of the player, DAC or headphone amp. When RME developed its Extreme Power headphone stage the basic noise floor was taken care to be as low as possible. Which was then confirmed in many reviews (most black background…). Even when used with IEMs.
Still, RME wanted to make sure that even the most sensitive IEM combined with the most sensitive listener receive the full dynamic range on playback. Also, capable outputs like the Extreme Power ones are not fully safe against operating errors and might blow up ears or IEMs.
RME's solution: adding the most advanced IEM output imaginable as second phones connection to the front of the ADI-2 DAC. Its ground noise floor is an astounding 10 dB lower than the one of the Extreme Power output (black hole background…), output impedance is near zero Ohms, THD reaches new record lows, click-free on/off is included as well as volume ramp-up, and the sound quality with any IEM is just amazing. We're sure you will love it!
Lights Out!
A studio converter with all lights off? Defective. But on a DAC it was one of the most often requested features from our ADI-2 Pro HiFi customers. Here we go: display, function keys, volume knob, even the standby button - they all go off after 10 seconds of no user operation when AutoDark is activated in the unit's menu. Touching any button or control will turn on all lights for 10 seconds. Using the remote AutoDark can also be switched off / on, and using any button on the remote turns lights on for 3 seconds. Once again: we're sure you will love it!
- Power Supply
- USB Cable
- Remote
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
SPDIF coaxial
- 1 x RCA, 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
ANALOG OUTPUTS
XLR
- Output level switchable +19 dBu, +13 dBu, +7 dBu, +1 dBu @ 0 dBFS
- Signal-to-noise ratio (SNR) @ +7/+13/+19 dBu: 120 dB RMS unweighted, 123 dBA
- Signal-to-noise ratio (SNR) @ +1 dBu: 117 dB RMS unweighted, 120 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
- Frequency response @ 384 kHz, -1 dB: 0 Hz – 115 kHz
- Frequency response @ 768 kHz, -3 dB: 0 Hz – 109 kHz
- THD @ 0 dBFS: < -120 dB, 0.0001 %
- THD+N @ 0 dBFS: -116 dB, 0.00016 %
- Channel separation: > 120 dB
- Output impedance: 200 Ohm
RCA
As output XLR, but:
- Output: 6.3 mm TS jack, unbalanced
- Output level 6 dB lower than XLR (-5 dBu to +13 dBu @ 0 dBFS)
- Signal-to-noise ratio (SNR) @ +13 dBu: 120 dB RMS unweighted, 123 dBA
- Signal-to-noise ratio (SNR) @ +1/+7 dBu: 116/119 dB RMS unw., 119/122 dBA
- Signal-to-noise ratio (SNR) @ -5 dBu: 112 dB RMS unweighted, 114 dBA
- Output impedance: 100 Ohm
Phones
As RCA, but:
- Output: 6.3 mm TRS jack, unbalanced, stereo
- Output impedance: 0.1 Ohm
- Signal-to-noise ratio (SNR) @ +22 dBu: 120 dB RMS unweighted, 123 dBA
- Signal-to-noise ratio (SNR) @ +7 dBu: 118 dB RMS unweighted, 121 dBA
- Output level at 0 dBFS, High Power, load 100 Ohm or up: +22 dBu (10 V)
- Output level at 0 dBFS, Low Power, load 8 Ohm or up: +7 dBu (1.73 V)
- THD @ +18 dBu, 32 ohm load, 1.2 watts: -120 dB, 0.0001 %
- THD+N @ + 18 dBu, 32 Ohm Load: -114 dB, 0.0002 %
- THD @ +14 dBu, 16 Ohm load, 0.94 Watt: -110 dB, 0.0003 %
- Max power @ 0.001% THD: 1.5 W per channel
IEM
As Phones, but:
- Output level at 0 dBFS: -3 dBu, 0.55 V
- Signal-to-noise ratio (SNR) @ -3 dBu: 118 dB RMS unweighted, 121 dBA
- Max power, 8 Ohm, 0.001% THD: 40 mW per channel
DIGITAL
- Clocks: Internal, SPDIF In
- Jitter suppression of external clocks: > 50 dB (2.4 kHz)
- Effective clock jitter influence on 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 kHz
- Internally supported sample rates: 44.1 kHz up to 768 kHz
GENERAL
- Included power supply: external switching PSU, 100 - 240 V AC, 2 A, 24 Watts
- Standby power consumption: 120 mW (10 mA)
- Idle power consumption: 7 Watts, Max. power consumption: 18 Watts
- Idle current at 12 V: 570 mA (6.8 Watts)
- Dimensions (WxHxD): 215 x 52 x 150 mm (8.5" x 2.05" x 5.9")
- 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
