dbx 1066 - Manual (Page 8)

4
Operating Controls
Front Panel
CHANNEL TWO
1066
Compressor/
Limiter/Gate Stereo
Couple
EXPANDER / GATE LIMITER COMPRESSOR
GAIN REDUCTION dB INPUT / OUTPUT LEVEL dBu THRESHOLD THRESHOLD THRESHOLD
SC Enable
SC Mon
OverEasy
Contour Auto I/O Meter Bypass
-24 -18 -12 -6 0 +6 +12 +18 - + + 24 21 27 30 18 15 12 9 6 4 2 1 - O +
THRESHOLD RATIO OUTPUT GAIN THRESHOLD ATTACK RATIO RELEASE
-40
-20
+15
0
OFF
-60
dBu
2:1
4:1
3:1
1.2:1 8:1
1.4:1
1.6:1
0
-20
-10 +10
+20 dB
.35
3
1 .15
.04 dB/mSec
4:1
:1
10:1
6:1
1:1
2:1
3:1
OFF
+16
+12
+4
+6
+8
dBu
-10
0
+20
+10
-40
-30
-20
dBu
50
250
125 12.5
5 dB/Sec
PeakStopPlus
CHANNEL ONE
CHANNEL ONE
SIDECHAIN
OUTPUTS INPUTS
SEND RETURN
OPERATING
LEVEL
+4 dBu
-10 dBV
CHANNEL TWO
SIDECHAIN
OUTPUTS INPUTS
SEND RETURN
OPERATING
LEVEL
+4 dBu
-10 dBV
230V
50/60Hz
115V
50/60Hz
PROFESSIONAL
PRODUCTS
A HARMAN
INTERNATIONAL
COMPANY
SALT LAKE CITY, UTAH
MADE IN USA
MODEL 1066
85-4009-P1 dbx 1066 rear art 1/11/96
85-4012-P5 dbx 1066 rear art 1/11/96
PIN1 / SLEEVE
PIN 2 / TIP
+
PIN 3 / RING
-
PIN1 / SLEEVE
PIN 2 / TIP
+
PIN 3 / RING
-
FUSE: REPLACE WITH SAME
TYPE FUSE AND RATING.
ATTENTION: UTILISER
UN FUSIBLE DE RECHANGE
DE MEME TYPE ET CALIBRE.
100-120V: 250mA 250V
SLOW BLOW
200-240V: T 125mA L 250V
EXPANDER / GATE LIMITER COMPRESSOR
GAIN REDUCTION dB INPUT / OUTPUT LEVEL dBu THRESHOLD THRESHOLD THRESHOLD
SC Enable
SC Mon
OverEasy
Contour Auto I/O Meter Bypass
-24 -18 -12 -6 0 +6 +12 +18 - + + 24 21 27 30 18 15 12 9 6 4 2 1 - O +
THRESHOLD RATIO OUTPUT GAIN THRESHOLD ATTACK RATIO RELEASE
-40
-20
+15
0
OFF
-60
dBu
2:1
4:1
3:1
1.2:1 8:1
1.4:1
1.6:1
0
-20
-10 +10
+20 dB
.35
3
1 .15
.04 dB/mSec
4:1
:1
10:1
6:1
1:1
2:1
3:1
OFF
+16
+12
+4
+6
+8
dBu
-10
0
+20
+10
-40
-30
-20
dBu
50
250
125 12.5
5 dB/Sec
PeakStopPlus
PROFESSIONAL PRODUCTS
Stereo Link Switch - This switch changes the 1066 from two independent compressors into a stereo compressor.
In stereo mode, Channel 1 is the master and Channel 2 is the slave. Each of the Channel 2 controls and switch
functions will be overriden and controlled by the Channel 1 controls and switches, except the Sidechain Monitor,
Sidechain Enable, Contour, and Bypass switches. Also, Channel 2’s Expander/Gate, Compressor Threshold, and
PeakStopPlus™ Threshold meters will be disabled, while both channels’ Gain Reduction meters will identically
indicate the amount of gain reduction occurring. It is important to note that while Channel 1 is the master as
far as the controls go, both channels have equal precedence as far as signal processing is concerned. The dbx
1066 uses True RMS Power Summing™, an extremely accurate and musical way to combine detector outputs in a
stereo situation. The switch will light to indicate that the 1066 is in the Stereo Link mode.
Expander/Gate Threshold Control - This control sets the level below which gating/expansion occurs. It has an
effective control range of -60 dB to +15 dB. When it is fully counter clockwise to the “off” position, no gating
or expansion occurs.
Expander/Gate Threshold Below (-) LED - This LED illuminates when the signal is below the level set by the
EXPANDER/GATE THRESHOLD control and indicates that expansion or gating is occurring.
Expander/Gate Threshold Above (+) LED - This LED illuminates when the signal is above the level set by the
EXPANDER/GATE THRESHOLD control and indicates that no expansion or gating is occurring.
Expander/Gate Ratio Control - This control sets the expansion ratio and varies from 1:1 to 8:1. It is important
to note that as the signal passes below the threshold, the input/output gain relationship does not transition
sharply form unity gain (where no expansion is occurring) to the ratio set by the EXPANDER RATIO control. The
1066’s expander utilizes a soft-knee OverEasy® threshold circuit analogous to the OverEasy® compressor curve
made famous by the 1066’s predecessors and employed in the compressor section of the 1066. See Figure 1. This
soft knee contributes to the smooth and natural sounding decay of the 1066 expander making its action virtu-
ally transparent with low to moderate ratio settings. When hard gating is required, higher ratio settings cause
the expander to function like a gate. The expander attack and release times are program-dependent. The detec-
tor intelligently senses the need for fast attack for rapidly-changing signals, and slows down for more stable
signals.
Operating controls