Audient ID4 Audio Interface

MICROPHONE PREAMPLIFIER:

(measurement includes ADC signal path)

MIC GAIN:	0 to 58 dB
LINE GAIN:	-10 to 48 dB (-10dB hardwired line pad)
PHANTOM POWER:	48V ±4V @ 10mA/Channel
MIC EIN:	<-126.0 dBu
CMRR:	>75 dB @ 1kHz
MAXIMUM INPUT LEVEL:	+12 dBu (0 dBFS digital Maximum)
INPUT IMPEDANCE (Mic):	2.8 kΩ Balanced
INPUT IMPEDANCE (Line):	>8kΩ Balanced
FREQUENCY RESPONSE:	±0.1 dB 20Hz to 22kHz @ min. gain ±1.0 dB 20Hz to 22kHz @ max. gain
CROSSTALK:	<-91 dBu
THD+N @ 0dBu (1kHz):	0.0015% (-96.5dBu)
SNR:	96 dB un-weighted, 99 dB A-weighted
XLR Combi Female	Pin 2 (Hot), Pin 3 (Cold) & Pin 1 (Shield)
1/4" TRS Jack	Tip (Hot), Ring (Cold) & Sleeve (Shield)

D.I (Channel 1):

D.I GAIN:	-5 to 35 dB
MAXIMUM INPUT LEVEL:	+8 dBu (0.6% THD typical)
INPUT IMPEDANCE:	>500kΩ Unbalanced
FREQUENCY RESPONSE:	±0.1 dB 20Hz to 22kHz
THD+N @ 0dBu (1kHz):	<0.1% all musical 2nd and 3rd harmonics Typically 0.05% at 0dBu
SNR:	87 dB un-weighted, 90dB A-weighted
1/4” JACK:	TIP (Hot) & SLEEVE (Shield)

ANALOGUE TO DIGITAL CONVERTER (ADC 1 & 2):

(measured sans microphone preamplifier under AES-17)

MAXIMUM INPUT LEVEL:	+12 dBu (0 dBFS digital maximum)
DIGITAL REFERENCE LEVEL:	+12 dBu = 0 dBFS
FREQUENCY RESPONSE:	±0.1 dB 10Hz to Fs/2 (flat to nyquist)
CROSSTALK:	-100 dBu @ 1kHz & 10kHz
THD+N @ -1dBFS (1kHz):	<0.001% (-100 dB)
THD+N @ -6dBFS (1kHz):	<0.0011% (-99.1 dB)
DYNAMIC RANGE:	112 dB un-weighted 114 dB A-weighted

DIGITAL TO ANALOGUE CONVERTER (DAC 1&2):

(measured under AES-17 at line outputs 1&2)

MAXIMUM OUTPUT LEVEL:	+12 dBu (0 dBFS digital maximum)
DIGITAL REFERENCE LEVEL:	+12 dBu = 0 dBFS
OUTPUT IMPEDANCE	<100Ω
FREQUENCY RESPONSE:	±0.1 dB 10Hz to Fs/2 (flat to nyquist)
CROSSTALK:	<-104 dBu @ 1kHz & 10kHz
THD+N @ -1dBFS (1kHz):	<0.0015% (-96.5 dB)
DYNAMIC RANGE:	112 dB un-weighted 115 dB A-weighted
1/4" TRS Jack	Tip (Hot), Ring (Cold) & Sleeve (Shield)

DUAL HEADPHONE OUTPUT:

MAXIMUM OUTPUT LEVEL:	+12 dBu (0dBFS digital maximum)
DIGITAL REFERENCE LEVEL:	+12 dBu = 0 dBFS
VOLTAGE GAIN:	+6 dB (optimised for loudness)
OUTPUT IMPEDANCE:	<30 Ω Balanced
FREQUENCY RESPONSE:	±1.0 dB 10Hz to Fs/2 (load dependant)
CROSSTALK:	-98 dBu @ 1kHz & 10kHz
THD+N @ -1dBFS (1kHz):	<0.0012% (-98.4 dB)
DYNAMIC RANGE:	106 dB un-weighted 108 dB A-weighted
MAX LEVEL INTO 30ohms:	+3 dBu, 0.008% THD+N, Power: 80mW
MAX LEVEL INTO 60ohms:	+6 dBu, 0.005% THD+N, Power: 80mW
MAX LEVEL INTO 600ohms:	+12 dBu, 0.0025% THD+N, Power: 31mW
1/4” TRS JACK:	TIP (Left), RING (Right) & SLEEVE (Shield)
1/8” MINI JACK:	TIP (Left), RING (Right) & SLEEVE (Shield)

USB 2.0 HIGH SPEED:

BUS POWER:	500mA @5V System Limit 420mA @5V Maximum (No 48V)
No. of INPUT CHANNELS:	2 (2 Analogue)
No. of OUTPUT CHANNELS:	2 (2 Analogue)
DSP MIXER LATENCY:	ROUND TRIP (in-to-out) 44.1kHz 1.583ms 48.0kHz 1.458ms 88.2kHz 0.792ms 96.0kHz 0.729ms

DAW Roundtrip Software Monitoring Latency @ 32 Sample Buffer (in to out):

44.1 kHz	5.91ms
96.0 kHz	4.55ms

COMPATIBILITY:

iD4 supports the following operating systems:

macOS 10.7.5 and later
Windows 7 and later
iOS 6 and later

* To use iD4 with an iOS device a camera adapter kit and a powered USB 2.0 hub is required.

POWER SUPPLY:

USB2.0 Powered (2.5 Watts Maximum)*

* iD4 features our class leading converters and class-A mic pre. We've optimised all circuitry so that we can supply true 48v phantom power to a single Audient mic pre without compromise. Your microphones will thank you when they get enough voltage.

More Information

More Information
Manufacturer	Audient
Manufacturer SKU	ID4
Interface Type	USB