User Manual

49
Mic Input on LM-PRE4 Module
THD+N
1kHz, -1dBFS, 20kHz filter
-111dB (0.00028%)
-99dB (0.0011%)
-80dB (0.010%)
@ 21.6dB gain
@ 41.6dB gain
@ 61.6dB gain
EIN
Equivalent input noise
-127dBu
-129dBu
@ 61.6dB gain, 20kHz filter
@ 61.6dB gain, A-weighted
Dynamic Range
A-weighted, -60dBFS method
116dB
@ 21.6dB gain
Frequency Response
Deviation over 20-20kHz band, -1dBFS
+0.01 / -0.08dB max.
@ all gain settings
Crosstalk
Adjacent channel, -1dBFS
-127dB max.
-117dB max.
@ 41.6dB gain, 1kHz
@ 41.6dB gain, 10kHz
Common Mode Rejection
-1dBFS
75dB min.
@ 61.6dB gain, 60Hz and 1kHz
Full-scale Input Levels for A/D
28.7dBu (max level)
20.7dBu
15.1dBu
-0.9dBu
-47.9dBu
@ 5.6dB gain, pad enabled
@ 13.6dB gain, pad enabled
@ 5.6dB gain, pad disabled
@ 21.6dB gain, pad disabled
@ 68.6dB gain, pad disabled
Input impedance
2.1k Ohm
Gain Settings
5.6dB or 13.6dB to 68.6dB in 1dB steps, pad disabled
-8dB or 0dB to 55dB in 1dB steps, pad enabled
Pad attenuation
13.6dB
High-pass Filter
80Hz, 12 dB / octave
Connector
Female XLR on Neutrik Combo Jack
All mic input measurements made with 150 ohm source applied to input
Hi-Z Input on LM-PRE4 Module
THD+N
1kHz, -1dBFS, 20kHz filter
-109dB (0.00035%)
@ 21.6dB gain
EIN
Equivalent input noise
-113dBu
-115dBu
@ 21.6dB gain, 20kHz filter
@ 21.6dB gain, A-weighted
Dynamic Range
A-weighted, -60dBFS method
114dB
@ 21.6dB gain
Frequency Response
Deviation over 20-20kHz band, -1dBFS
+0.01 / -0.05dB max.
@ all gain settings
Crosstalk
Adjacent channel, -1dBFS
-132dB max.
-125dB max.
@ 21.6dB gain, 1kHz
@ 21.6dB gain, 10kHz
Full-scale Input Levels for A/D
14.9dBu (max level)
-1.1dBu
-18.1dBu (96mV)
-48.1dBu (3.0mV)
@ 5.6dB gain
@ 21.6dB gain
@ 38.6dB gain
@ 68.6dB gain
Input impedance
1M Ohm unbalanced (TS), 2M Ohm balanced (TRS)
Gain Settings
5.6dB and 13.6dB to 68.6dB in 1dB steps
Connector
TRS on Neutrik Combo Jack
All hi-z input measurements made with 600 ohm, balanced source applied to input