RME ADI-2/4 Pro SE – High-Performance 2-AD / 4-DA 768 kHz Converter & USB Audio Interface with DSD, DSP & Balanced I/O

Based on many years of continued feature development of the ADI-2 Pro, RME unveils the next addition to the countless award winning ADI-2 Series. The latest masterpiece comes with a newly developed circuit board, improved specs and faster DSP for an outstanding transparent sound signature, extreme power headphone amplifiers including IEM power setting, super low noise 4.4 mm Pentaconn balanced connection, trigger out function for powering on/off external devices and finally an RIAA mode for directly digitizing vinyl discs in highest quality.

FEATURES

• 2-channel AD / 4-channel DA high-performance audio conversion
• 768 kHz PCM and native DSD256 support for ultra-high-resolution audio
• SteadyClock FS for ultra-low jitter and perfect timing accuracy
• Dual headphone/IEM outputs with ultra-low noise and high output power
• USB 2.0 Class Compliant – plug-and-play with Windows, macOS, iOS, Linux
• Onboard DSP: parametric EQ, loudness control, crossfeed & more
• Balanced XLR, TRS, and unbalanced RCA connectivity
• Flexible routing with TotalMix FX software
• Ideal for mastering, reference listening, and pro studio applications

SPECIFICATIONS

Analog Inputs

XLR/TRS

• Input: XLR and 6.3 mm TRS jack, servo-balanced
• Input impedance @ 1 kHz, balanced: 90 kOhm, unbalanced: 45 kOhm
• Input sensitivity switchable +24 dBu, +19 dBu, +13 dBu, +7 dBu, +1 dBu @ 0 dBFS
• Digital Trim Gain range: 0 dB up to +6 dB, in steps of 0.5 dB
• Signal to Noise ratio (SNR) @ +13/19/24 dBu: >120 dB (AES17), >123 dBA
• Signal to Noise ratio (SNR) @ +7/+1 dBu: >120 dB (AES17), 123 dBA
• Frequency response* @ 44.1 kHz, -0.1 dB: 0.4 Hz – 20.4 kHz
• Frequency response* @ 96 kHz, -0.5 dB: 0.2 Hz – 45.5 kHz
• Frequency response* @ 192 kHz, -1 dB: 0.15 Hz – 90.9 kHz
• Frequency response* @ 384 kHz, -1 dB: 0.15 Hz – 182 kHz
• Frequency response* @ 768 kHz, -1 dB: 0.15 Hz – 348 kHz
• THD @ -0.5 dBFS: > -130 dB, 0.0000316 %
• THD+N @ -0.5 dBFS: -119 dB, 0.000112 %
• Channel separation: > 130 dB @ 1 kHz

* DC Filter None. With Filter RME @ -1 dB: < 0,5 Hz

RIAA Mode via TS

• RIAA deviation 20 Hz – 20 kHz: < ±0.05 dB
• Input impedance: 45 kOhm @ 1 kHz, input capacitance 150 pF
• Sensitivity: +14 dB: 20 mV, +20 dB: 10 mV, +26 dB: 5 mV
• Sensitivity: +32 dB 2.5 mV, +38 dB: 1.25 mV
• Additional 0 to +6 dB Gain in steps of 0.5 dB via Trim Gain
• Maximum input level @ +14 dB: 114 mV, -16.6 dBu
• Maximum input level @ +20 dB: 57 mV, -22.6 dBu
• Maximum input level @ +26 dB: 28.4 mV, -28.7 dBu
• Maximum input level @ +32 dB: 14.3 mV, -34.7 dBu
• Maximum input level @ +38 dB: 7.2 mV, -40.6 dBu
• Digital headroom in all Gains, related to sensitivity: 15 dB
• Signal to Noise Ratio (SNR), 20 Hz-20 kHz, +14/20 dB Gain: 88 dB, 92 dBA
• Signal to Noise Ratio (SNR), 20 Hz-20 kHz, +26 dB Gain: 80.5 dB, 85 dBA
• Signal to Noise Ratio (SNR), 20 Hz-20 kHz, +32 dB Gain: 74 dB, 78.5 dBA
• Signal to Noise Ratio (SNR), 20 Hz-20 kHz, +38 dB Gain: 68 dB, 73 dBA
• THD+N, 20 Hz-20 kHz, +14/+20 dB: -88 dB, 0.004 %
• THD+N, 20 Hz-20 kHz, +26 dB: -81.5 dB, 0.0084 %
• THD+N, 20 Hz-20 kHz, +32 dB: -74 dB, 0.019 %
• THD+N, 20 Hz-20 kHz, +38 dB: -69 dB, 0.035 %

Analog Outputs

1/2 XLR

• Maximum Output Level: +26.5 dBu @ 0 dBFS
• Output level switchable +24 dBu, +19 dBu, +13 dBu, +7 dBu, +1 dBu @ 0 dBFS
• Signal to Noise ratio (SNR) @ +7/+13/19/24 dBu: 120 dB (AES17), 123 dBA
• Signal to Noise ratio (SNR) @ +1 dBu: 119 dB (AES17), 120 dBA
• Frequency response @ 44.1 kHz, -0.1 dB: 0 Hz – 21 kHz
• Frequency response @ 96 kHz, -0.5 dB: 0 Hz – 44.9 kHz
• Frequency response @ 192 kHz, -1 dB: 0 Hz – 90 kHz
• Frequency response @ 384 kHz, -1 dB: 0 Hz – 181 kHz
• Frequency response @ 768 kHz, -3 dB: 0 Hz – 285 kHz
• THD @ 0 dBFS: < -120 dB, 0.0001 %
• THD+N @ 0 dBFS: -116 dB, 0.00016 %
• Channel separation: > 130 dB
• Output impedance @ 1 kHz @ +24/+19/+13 dBu: 213 Ohm
• Output impedance @ 1 kHz @ +7/+1 dBu: 113 Ohm

1/2 TS (rear)
As output XLR, but:

• Output: 6.3 mm TRS jack, impedance-balanced
• Maximum output level: +21.5 dBu @ 0 dBFS
• Signal to Noise ratio (SNR) @ +19/13 dBu: 120 dB (AES17), 123 dBA
• Signal to Noise ratio (SNR) @ +7 dBu: 119 dB (AES17), 121 dBA
• Signal to Noise ratio (SNR) @ +1 dBu: 118 dB (AES17), 118 dBA
• Output impedance @ 1 kHz: balanced 213 Ohm, unbalanced 106 Ohm

Phones 1/2, Phones 3/4
As Output 1/2 TRS, but:

• Output: 6.3 mm TRS stereo jack, unbalanced
• Maximum output level: +21.5 dBu @ 0 dBFS
• Output impedance: 0.1 Ohm
• Signal to Noise ratio (SNR) @ +19 dBu (Hi-Power): 120 dB (AES17), 122 dBA
• Signal to Noise ratio (SNR) @ +7 dBu (Lo-Power): 119 dB (AES17), 121 dBA
• Signal to Noise ratio (SNR) @ +1 dBu (IEM): 118 dB (AES17), 120 dBA
• Output level at 0 dBFS, Ref Level +19 dBu, load 100 Ohm or up: +21.5 dBu (9.2 V)
• Minimum load impedance IEM @ +1 dBu: 4 Ohm
• Minimum load impedance Lo-Power @ +7 dBu: 8 Ohm
• Minimum load impedance Hi-Power @ +19 dBu: 24 Ohm
• THD @ +20 dBu, 32 Ohm load (1.9 Watts): -124 dB, 0.000057 %
• THD+N @ + 20 dBu, 32 Ohm load (1.9 Watts): -118 dB, 0.00011 %
• Max power @ 0.001% THD: 2.1 W per channel
• Channel separation 20 Hz – 20 kHz: 80 dB @ 32 Ohm

Balanced Phones mode
As before, but:

• Maximum output level: +27.5 dBu (18.4 V) @ 0 dBFS
• Output levels switchable: IEM +7 dBu, Lo-Power +13 dBu, Hi-Power +25 dBu
• Output levels switchable: IEM 1.73 V, Lo-Power 3.46 V, Hi-Power 13.8 V
• Output impedance: 0.2 Ohm ? Signal to Noise ratio (SNR) @ +25 dBu: 120 dB (AES17), 122 dBA
• Signal to Noise ratio (SNR) @ +13 / +7 dBu: 119 dB (AES17), 121 dBA
• Minimum load impedance IEM @ +7 dBu: 8 Ohm
• Minimum load impedance Lo-Power @ +13 dBu: 12 Ohm
• Minimum load impedance i Hi-Power @ +25 dBu: 40 Ohm
• Max power @ 0.001% THD: 4 W per channel ? Channel separation: > 130 dB @ 1 kHz

Digital Inputs

General

• Lock Range: 28 kHz – 200 kHz
• Jitter suppression: > 50 dB (> 1 Hz)
• Accepts Consumer and Professional format

AES/EBU

• 1 x XLR, transformer-balanced, galvanically isolated, according to AES3-1992
• Input sensitivity 1.0 Vpp

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
• Jitter suppression of external clocks: > 50 dB (> 1 Hz)
• 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: 32 kHz up to 200
• Internally supported sample rates: 44.1 kHz up to 768 kHz

General

• Included power supply: external switching PSU, 100 – 240 V AC, 3.3 A, 40 Watts
• Standby power consumption DC 12 V: 170 mW
• Standby power consumption AC 230 V: 280 mW
• Idle power consumption: 14 Watts, Max. power consumption: 30 Watts
• Idle current at 12 V: 1.16 A
• Dimensions (WxHxD): 215 x 44 x 160 mm (8.5″ x 1.73″ x 6.3″)
• Weight: 1.2 kg ( 2.2 lbs)
• Temperature range: +5° up to +40° Celsius (41° F up to 112°F)
• Relative humidity: < 75%, non condensing