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SPECIFICATIONS
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 (on USB!)
MIC EIN: <-126.0 dBu
CMRR: >75 dB @ 1kHz
MAXIMUM INPUT LEVEL: +12 dBu (0 dBFS digital maximum)
INPUT IMPEDANCE (Mic): 2.8k Ω balanced
INPUT IMPEDANCE (Line): >8k Ω 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% (-96.5 dBu)
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)
DUAL HEADPHONE OUTPUT:
MAXIMUM OUTPUT LEVEL: +12 dBu (0 dBFS digital maximum)
OUTPUT IMPEDANCE: <30 Ω balanced
VOLTAGE GAIN: +6 dB (optimised for loudness)
FREQUENCY RESPONSE: ±1.0dB 10Hz to Fs/2 (load dependent)
CROSSTALK: <-98 dBu @ 1kHz & 10kHz
THD+N @ -1dBFS (1kHz): <0.0012% (-98.4 dB)
DYNAMIC RANGE: 106 dB un-weighted, 108 dB A-weighted
MAXIMUM LEVEL into 30 Ω: +3 dBu 0.008% THD+N Power: 80mW
MAXIMUM LEVEL into 60 Ω: +6 dBu 0.005% THD+N Power: 80mW
MAXIMUM LEVEL into 600 Ω: +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)
Both headphone outputs can be driven simultaneously for two users
or just never worry about carrying the right jack adapter ever again!
D.I / INSTRUMENT INPUT:
(Channel 2)
D.I GAIN: -5 to 35dB
MAXIMUM INPUT LEVEL: +8 dBu (0.6% THD typical)
INPUT IMPEDANCE: >500k Ω unbalanced
FREQUENCY RESPONSE: ±0.1dB 20Hz to 22kHz
THD+N @ 0dBu (1kHz): <0.2% all musical 2nd and 3rd harmonic
Typically 0.05% at 0dBu
SNR: 87 dB un-weighted, 90 dB A-weighted
1/4” TS 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: <100 Ω
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)
POWER SUPPLY:
USB2.0 Bus 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!
USB2.0 HIGH SPEED:
BUS POWER: 500mA @ 5V System Limit
420mA @ 5V Maximum (with 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
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