Audient iD4+ MK3 20x24 Desktop USB-C Audio Interface

For the engineer running serious sessions. The iD4+ (formerly the iD44) is a 20-in/24-out desktop audio interface built around two features most interfaces in its class don't have:

• Built-in RoomTune monitor correction, with the RM1 reference microphone included.
• Four tone-shaping Audient Console mic preamps with real analogue saturation.

It adds balanced hardware inserts, 16 channels of ADAT I/O, hardware-accelerated DSP effects and 32-bit conversion. The result is a commercial studio's signal chain on your desktop, built for high-channel-count tracking and hybrid sessions.

Features

• Powered by Audient Analogue Intelligence
• 20-in/24-out over USB-C
• 4 Audient Console mic preamps with 75 dB of clean gain and Smartgain
• 2 JFET instrument inputs on channels 1 and 2
• 2 balanced hardware inserts on channels 1 and 2
• Built-in RoomTune monitor correction (RM1 reference microphone included)
• Analogue Tone Suite:
  • HMX for warmth
  • LIFT for sheen
  • GLOW for finish
  • ORBIT for character
• Onboard hardware-accelerated DSP effects (EQ, compression and reverb) with zero latency
• 32-bit conversion with 128 dB dynamic range, more than any other interface in its class
• 16 channels of ADAT in and out
• 2 independent headphone amps with up to 4 artist mixes
• Dual stereo monitor outputs with dedicated hardware monitor controls
• Up to 192 kHz sample rate, Mac and Windows compatible
• Full performance on USB-C bus power, no AC adapter needed

Specifications

Mic Preamp Input

• Max input level: +18 dBu
• THD+N at 0 dBu: -99 dB (0.0011%)
• Gain: 0 to 75 dB
• SNR: 101 dB A-weighted
• EIN: -128 dB A-weighted
• Frequency response: ±0.1 dB, 10 Hz – 80 kHz
• CMRR: >70 dB
• Crosstalk: <-120 dB
• Input impedance: 3 kΩ
• Phantom power: +48 V DC, 10 mA per channel
• 10 dB pad, Analogue Tone Suite, analogue send/returns on channels 1 and 2

Line Input

• Max input level: +28 dBu
• THD+N at 0 dBu: -98 dB (0.0012%)
• Gain: -10 to 65 dB
• Input impedance: 10 kΩ

DI Input

• Max input level: +12 dBu
• THD+N at 0 dBu: -60 dB (0.098%)
• Gain: 0 to 75 dB
• SNR: 96 dB A-weighted
• Frequency response: ±0.5 dB, 10 Hz – 40 kHz
• Input impedance: 500 kΩ

Analogue-to-Digital Conversion

• Max input level: +18 dBu = 0 dBFS
• THD+N at -1 dBFS: -110 dB (0.0003%)
• Dynamic range: 123.5 dB A-weighted
• Frequency response: ±0.5 dB, 10 Hz to Nyquist
• Crosstalk: <-120 dB

Line Outputs

• Max output level: +18 dBu = 0 dBFS
• THD+N at -1 dBFS: -115 dB (0.00017%)
• Dynamic range: 128 dB A-weighted
• Frequency response: ±0.5 dB, 10 Hz to Nyquist
• Crosstalk: <-125 dB (-110 dB at 1 kHz and 10 kHz)
• Impedance: 470 Ω
• RoomTune monitor correction

Headphone Outputs

• Max output level: +15 dBu = 0 dBFS
• THD+N at -6 dBFS: -111 dB (0.0003%)
• Dynamic range: 125 dB A-weighted
• Frequency response: ±0.5 dB, 10 Hz to Nyquist
• Crosstalk: <-130 dB (-120 dB at 1 kHz and 10 kHz)
• Impedance: 2 Ω
• Max power: 456 mW into 30 Ω, 434 mW into 60 Ω, 43 mW into 600 Ω

Digital

• Inputs: 2 optical (S/PDIF/ADAT)
• Outputs: 2 optical (S/PDIF/ADAT)
• Word clock: output, ±10 ppm accuracy
• Sample rates: 44.1, 48, 88.2, 96, 176.4 and 192 kHz

Round-Trip Latency (64-sample buffer)

• DAW mixer:

Sample rate    Latency

44.1 kHz:        5.792 ms
48 kHz:           5.521 ms
88.2 kHz:        4.083 ms
96 kHz:          3.969 ms
176.4 kHz:     3.167 ms
192 kHz:        3.125 ms

• Internal mixer:

Sample rate      Latency

44.1 kHz:          0.396 ms
48 kHz:             0.365 ms
88.2 kHz:          0.198 ms
96 kHz:             0.188 ms
176.4 kHz:        0.109 ms
192 kHz:           0.099 ms