Appendix d, Appendix, D.3 specifications – dbx Pro 386 User Manual
Page 34: Microphone input, Line input (rear panel), Instrument input (front panel), Analog outputs, Insert, Digital outputs, Word sync input/output
Appendix
®
26
Appendix D
386
Microphone Input
Connector:
Female XLR Pin 2 Hot
Type:
Electronically balanced/unbalanced
Impedance:
330
Ω
Maximum Input Level:
-9 dBu or +11 dBu with 20 dB pad engaged
CMRR:
>40dB, Typically 55dB
Equivalent Input Noise:
Typically -120 dBu with a 150
Ω
source load, 20Hz to 20kHz BW
Line Input (Rear Panel)
Connector:
TRS 1/4" Jack
Type:
Electronically balanced/unbalanced
Impedance:
20k
Ω
unbalanced, 40k
Ω
balanced
Maximum Input Level:
+21dBu balanced or unbalanced
CMRR:
>40dB, Typically 55dB
Gain (Drive Control)
-15dB to +15dB
Instrument Input (Front Panel)
Connector:
TS 1/4" Jack
Type:
Unbalanced
Impedance:
470 k
Ω
Maximum Input Level:
+21dBu unbalanced
Analog Outputs
Connector:
Male XLR Pin 2 Hot and TRS 1/4"
Type:
Servo-balanced/unbalanced
Impedance:
Balanced 120
Ω
, unbalanced 60
Ω
Maximum Output Level:
>+21 dBu, >+20 dBm (into a 600
Ω
load)
Insert
Connector:
TRS 1/4"
Type:
Unbalanced
Impedance:
100
Ω
(SEND), 20k
Ω
(RETURN)
Digital Outputs
Connectors:
XLR for AES/EBU
RCA for S/PDIF
Impedance:
110
Ω
for AES/EBU
75
Ω
for S/PDIF
Word Sync Input/Output
Connectors:
BNC
Input Impedance:
75
Ω
terminated by internal jumper
Input:
96, 88.2, 48, or 44.1kHz word clock
Output:
96, 88.2, 48, or 44.1kHz word clock
System Performance
DRIVE Control Range:
+30dB to +60dB for Mic Input
-15dB to +15dB for Line and Instrument Inputs
LEVEL Control Range
(Analog and Digital):
-15dB to +15dB
LINE:
Selects between microphone and line inputs
Phantom Power:
+48V
PAD:
20dB pad
PHASE:
Reverses pins 2 and 3 of the microphone input XLR
LOW CUT:
75Hz, 12dB/octave high pass filter
Analog Frequency Response:
<10Hz to 75kHz
THD+Noise:
0.35% typical at +4dBu out, 1kHz, 40 dB gain
Interchannel Crosstalk:
Typically –80dB, 20Hz to 20kHz
Analog to Digital Conversion
Type:
dbx Type IV™ A/D Conversion System
Sample Rate:
96, 88.2, 48, or 44.1kHz selectable
Wordlength:
24, 20, or 16 bit selectable
Dither Type:
TPDF, SNR2, or none
Noise Shape:
Shape 1, Shape 2, or none
Output Format:
S/PDIF or AES/EBU
Convertor Dynamic Range
107dB typical, A-weighted, 22kHz bandwidth
Power Supply
Operating Voltage:
DO: 120VAC 60Hz, 100VAC 50/60Hz
EU: 230VAC 50/60 Hz
Power Requirements:
35 Watts
Physical
Weight:
7.3 lbs (3.3kg)
Dimensions:
1.75'' x 7.75'' x 19'' (4.5cm x 19.7cm x 48.5cm)
NOTE: 0dBu= -18dBFS, 0dBu = 0.775V rms
D.3 Specifications
386 User Manual