Audio Developments AD144 User Manual
Page 9
8
TECHNICAL SPECIFICATION - ELECTRICAL
REFERENCE
0dB = 775mV at 1kHz unless otherwise stated
MAX GAIN
MIC 85
75
65
55
45
35
dB
LINE 50
40
30
20
10
0
dB
MAX INPUT LEVEL MIC -42
-32
-22
-12
-2
+8
dB
LINE -7
+3
+13
+23
+33
+43
dB
RETURNS
+24
dB
INPUT
MIC
>1k5Ω
IMPEDANCE
LINE
>10kΩ
RETURNS >100kΩ
MIC POWERING
+48V DC and +12V DC PHANTOM POWER
+12V TONADER (to order)
MAX OUTPUT
+23.5dBm (600R LOAD) - A,B,C,D; MASTER, AUX 1,2,3,4:
TRANSFORMER BALANCED
CLEAN FEED/CHANNEL OUT; ELECTRONIC BALANCED
+18dBm (600R LOAD) - MON 1 L&R; MON 2 L&R; AUX 1,2,3,4:
TRANSFORMER BALANCED
MON 2: UNBALANCED STEREO JACK
OUTPUT
<60R A,B,C,D; AUX1,2,3,4; MON 1; MON2; CLEAN FEED/CH
IMPEDANCE
<20R MON 2 (HEADPHONES JACK)
FREQUENCY
+0; -1.5dB 20Hz to 20kHz MAIN/AUXILIARY SIGNAL PATHS
RESPONSE
+0; -1.8dB 20Hz to 20kHz MONITOR SIGNAL PATHS
EQUALISATION
LF; SHELVING ±10dB @ 100Hz VARIABLE TURNOVER
MAX ±15dB @ 30 Hz
MF; PEAK/DIP ±15dB @ 2k8Hz Q = 1.2 RECIPROCAL
HF; SHELVING ±10dB @ 10kHz VARIABLE SLOPE
MAX ±15dB @ 30kHz
HIGH-PASS
-3dB @ 90Hz and 150Hz, 12dB/OCTAVE SLOPE
FILTER
HARMONIC
<0.03% @ 1kHz
0dBm OUTPUT
DISTORTION
<0.15% @ 40Hz to 20kHz
+15dBm OUTPUT
CROSSTALK
>70dB 40Hz to 15kHZ INTERCHANNEL & INTERGROUP
>55dB 40Hz to 15kHz BETWEEN L&R ON STEREO CHANNEL