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iD Interface Comparison Chart

Microphone Preamplifier

Mic Preamplifier iD4 iD14 iD22
Mic Gain 0-58dB 0 to 66 dB (inc. +10 dB software boost) -10 to +60 dB (-10dB Pad)
Line Gain -10 to 48 dB (-10dB hardwired line pad) -10 to 56 dB (-10dB hardwired line pad) -20 to +40 dB (-10dB Pad)
PHANTOM POWER 48V ±4V @ 10mA/Channel  48V ±4V @ 10mA/Channel (12VDC only)*   48v +/-4v @ 10mA/Channel
MIC EIN <-126.0 dBu <-127.0 dBu <-125dBu
CMRR >75 dB @ 1kHz >80 dB @ 1kHz >80dB @ 1kHz
MAXIMUM INPUT LEVEL +12 dBu (0 dBFS digital Maximum) +12 dBu (0 dBFS digital Maximum) +22dBu (+32dBu with Pad) 
INPUT IMPEDANCE (Mic)  2.8 kΩ Balanced  2.8 kΩ Balanced  >3kΩ Balanced
 INPUT IMPEDANCE (Line) >8kΩ Balanced  >8kΩ Balanced  >10kΩ Balanced 
 FREQUENCY RESPONSE ±0.1 dB 20Hz to 22kHz @ min. gain
±1.0 dB 20Hz to 22kHz @ max. gain 
 ±0.1 dB 20Hz to 22kHz @ min. gain
±1.0 dB 20Hz to 22kHz @ max. gain
+/-0.5dB 10Hz to 100kHz 
CROSSTALK  <-91 dBu  <-90 dBu  <-90dBu @ 1kHz & 10kHz 
THD+N @ 0dBu (1kHz) 0.0015% (-96.5dBu)  0.0025% (-92 dBu)   0.0015% (-96dBu)
 SNR 96 dB un-weighted, 99 dB A-weighted   96 dB un-weighted, 99 dB A-weighted 96dB 

DI Input

DI Input iD4 iD14 iD22
DI Gain -5 to 35 dB 0 to 66 dB (inc. +10 dB software boost) -16 to +54 dB (-10dB Pad)
MAXIMUM INPUT LEVEL +8 dBu (0.6% THD typical) +9 dBu (0.6% THD typical) +16dBu (typical), +22dBu
INPUT IMPEDANCE >500kΩ Unbalanced >500kΩ Unbalanced 1MegΩ Unbalanced
FREQUENCY RESPONSE ±0.1 dB 20Hz to 22kHz ±0.1 dB 20Hz to 22kHz +/-0.5dB 10Hz to 50kHz
THD+N @ 0dBu (1kHz)

<0.1% all musical 2nd and 3rd harmonics

Typically 0.05% at 0dBu

<0.04% all musical 2nd and 3rd harmonics <0.03% (-70dBu) 
SNR 87 dB un-weighted, 90dB A-weighted  95 dB un-weighted, 98 dB A-weighted  93dB 

ANALOGUE TO DIGITAL CONVERTER

A/D Converter iD4 iD14 iD22
MAXIMUM INPUT LEVEL +12 dBu (0 dBFS digital maximum) +12 dBu (0 dBFS digital maximum) +18dBu
DIGITAL REFERENCE LEVEL +12 dBu = 0 dBFS +12 dBu = 0 dBFS 0dBFS = +18dBu
FREQUENCY RESPONSE ±0.1 dB 10Hz to Fs/2 (flat to nyquist) ±0.1 dB 10Hz to Fs/2 (flat to nyquist) +/-0.5dB 10Hz to Fs/2
CROSSTALK -100 dBu @ 1kHz & 10kHz -100 dBu @ 1kHz & 10kHz -100dBu @ 1kHz & 10kHz
THD+N @ -1dBFS (1kHz) <0.001% (-100 dB) <0.002% (-94 dB) <0.002% (-94dB)

THD+N @ -6dBFS (1kHz)

<0.0011% (-99.1 dB) <0.0015% (-97 dB) <0.0015% (-97dB)
DYNAMIC RANGE 112 dB un-weighted
114 dB A-weighted
113 dB un-weighted
116 dB A-weighted
 117dB un-weighted
120dB A-weighted

DIGITAL TO ANALOGUE CONVERTER

D/A Converter iD4 iD14 iD22
MAXIMUM OUTPUT LEVEL +12 dBu (0 dBFS digital maximum) +12 dBu (0 dBFS digital maximum) +18dBu
DIGITAL REFERENCE LEVEL +12 dBu = 0 dBFS +12 dBu = 0 dBFS 0dBFS = +18dBu
OUTPUT IMPEDANCE <100Ω <100Ω <100Ω Balanced
FREQUENCY RESPONSE ±0.1 dB 10Hz to Fs/2 (flat to nyquist) ±0.1 dB 10Hz to Fs/2 (flat to nyquist) +/-0.5dB 5Hz to Fs/2
CROSSTALK <-104 dBu @ 1kHz & 10kHz <-105 dBu @ 1kHz & 10kHz -110dBu @ 1kHz & 10kHz
THD+N @ -1dBFS (1kHz) <0.0015% (-96.5 dB) <0.003% (-90.5 dB) <0.0008% (-101dB)
DYNAMIC RANGE 112 dB un-weighted
115 dB A-weighted
114 dB un-weighted
117 dB A-weighted
 110dB un-weighted
114dB A-weighted

Headphone Output

Headphone Output iD4 iD14 iD22
MAXIMUM OUTPUT LEVEL +12 dBu (0dBFS digital maximum) +12 dBu +18dBu
DIGITAL REFERENCE LEVEL +12 dBu = 0 dBFS +12 dBu = 0 dBFS 0dBFS = +18dBu
VOLTAGE GAIN +6 dB (optimised for loudness) +6 dB (optimised for loudness) +6 dB (optimised for loudness)
OUTPUT IMPEDANCE <30 Ω Balanced <30 Ω Balanced <50Ω Balanced
FREQUENCY RESPONSE ±1.0 dB 10Hz to Fs/2 (load dependant) ±1.0 dB 10Hz to Fs/2 (load dependant) +/-0.5dB 5Hz to Fs/2
CROSSTALK -98 dBu @ 1kHz & 10kHz -100 dBu @ 1kHz & 10kHz -110dBu @ 1kHz & 10kHz
THD+N @ -1dBFS (1kHz) <0.0012% (-98.4 dB) <0.002% (-94 dB) <0.0008% (-101dB)
DYNAMIC RANGE 106 dB un-weighted
108 dB A-weighted
108 dB un-weighted
111 dB A-weighted
110dB un-weighted
114dB A-weighted
MAX LEVEL INTO 30ohms +3 dBu, 0.008% THD+N, Power: 80mW +4 dBu, 0.005% THD+N, Power: 101mW +8dBu, 0.0032%
THD+N Power: 250mW 
 MAX LEVEL INTO 60ohms +6 dBu, 0.005% THD+N, Power: 80mW  +5 dBu, 0.004% THD+N, Power: 64mW   +11dBu, 0.0022%
THD+N
Power: 300mW 
 MAX LEVEL INTO 600ohms +12 dBu, 0.0025% THD+N, Power: 31mW  +13 dBu, 0.0025% THD+N, Power: 39mW   +17.2dBu, 0.0013%
THD+N Power: 105mW 

 

 

 

 

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