Series, 160s, 160sl – dbx 160SL User Manual
Page 26: Operations, Technical, Manual, Connection, Connection installation installation, Introduction
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160S
lue
series
b
160S
160S
160S
controls
controls
160S
notes
notes
160S
160S
160S
Operations
160S
160S
160S
160S
160S
160S
160S
160S
160S
160S
160S
160S
160S
160S
160S
Operations
Inspection
Inspection
Operating
Operating
Operating
Operating
Connection
Connection
Installation
Installation
Technical
Technical
Introduction
Introduction
to your system
to your system
considerations
considerations
contents
contents
concept
concept
diagram
diagram
applications
applications
support and factory service
support and factory service
160S
Specifications
Specifications
160S
160S
160S
160S
160S
160S
Manual
Manual
Design
Design
Block
Block
Controls
Controls
Advanced
Advanced
Warranty
Warranty
lue
series
b
Operating Level
Headroom
Clipping
Noise Floor
Useable dynamic range
Clipped signal heavily distorted
Audio levels below here are not heard, because of noise
+10
0
-10
-20
time
+10
0
-10
-20
time
input
dBu
Figure 2
Figure 1
Figure 3
Figure 4
input
dBu
+10
0
-10
-20
time
+10
0
-10
-20
time
output
dBu
output
dBu
INPUT OUTPUT
INPUT OUTPUT
CHANNEL ONE
CHANNEL TWO
A
B
2
1
3
Jensen
®
Output
Transformer
Jensen
®
Output
Transformer
10k 1W
GND
Switch
GND
Switch
BALANCED FLOATING OPERATION
UNBALANCED FLOATING OPERATION
Chassis
Ground
Chassis
Ground
Chassis
Ground
Ground Switch open
Unbalance Switch open
Ground Switch open
Unbalanced Switch closed
(6dB drop in output level)
Jensen
®
Output
Transformer
Jensen
®
Output
Transformer
10k 1W
GND
Switch
GND
Switch
BALANCED GROUND-
REFERENCED OPERATION
UNBALANCED GROUND-
REFERENCED OPERATION
Chassis
Ground
Chassis
Ground
Ground Switch closed
Unbalance Switch open
Ground Switch closed
Unbalance Switch closed
(6dB drop in output level)
+
-
+
-
+
-
+
-
Source
Device
(mixer)
EQ
IN
OUT
Audio
Outputs
Source
Device
(mixer)
Audio
Outputs
DELAY
Audio
Inputs
Audio
Outputs
Sidechain
Return
Sidechain
Send
Audio
Inputs
Audio
Outputs
Sidechain
Return
Sidechain
Send
2
1
3
Chassis
Ground
2
1
3
Chassis
Ground
2
1
3
Chassis
Ground
160SL
160SL
UL60065
FUSE:
T 500mA L
250V
Common “ducking” setup: delay is inserted into audio input,
non-delayed signal fed to sidechain. Sidechain triggers compression before signal is heard.
Mixing Board
If you wish to compress a particular track of a multi-track recording or one channel of a live performance mix,
the 160SL output can be directly connected to a line input jack (balanced or not), or wired to an Insert point. In
the latter case, the signals could be unbalanced or balanced.
Musical Instruments (i.e., Electric Guitar, Bass, Keyboards)
The output of an electric guitar is sometimes not
hot enough to drive the 160SL’s input. When this is the case,
you should use the
PREAMP OUT of your guitar amp (if so equipped), or the output of some other device that is
designed to accept low-level instrument inputs (including various stomp boxes and rack mount audio products).
Such sources can be balanced or unbalanced; this is no problem for the 160SL.
Microphones and bass guitars, like guitars, typically have low-level outputs and must be pre-amplified before
feeding the line level inputs of the 160SL.
Instruments like keyboards typically produce a line-level signal and can be connected directly from the instru-
ment’s output to the 160SL’s input.
Patch bay
In the studio, the 160SL may be connected to a patch bay to allow it to be used anywhere in the studio system.
In some cases where a balanced source drives the 160SL, a 6dB difference in level will occur when the BYPASS
switch is engaged. This is normal.
Sound Reinforcement
To compress a live mix or to protect loudspeakers, connect the 160SL between the source (mixing board or dis-
tribution amp) and the power amp(s). If multi-way loudspeakers with low-level electronic crossovers are used,
the 160SL(s) should go after the crossover(s). For a stereo system, you can separately stereo couple the two high
band crossovers, low band crossovers, etc. If limitations require that you use a single 160SL before a crossover,
adding an equalizer to the sidechain may provide some additional protection to your high frequency components.
160SL
lue
series
b
160SL
160SL
160SL
controls
controls
160SL
notes
notes
160SL
160SL
160SL
Operations
160SL
160SL
160SL
160SL
160SL
160SL
160SL
160SL
160SL
160SL
160SL
160SL
160SL
160SL
160SL
Operations
Inspection
Inspection
Operating
Operating
Operating
Operating
Connection
Connection
Installation
Installation
Technical
Technical
Introduction
Introduction
to your system
to your system
considerations
considerations
contents
contents
concept
concept
diagram
diagram
applications
applications
support and factory service
support and factory service
160SL
Specifications
Specifications
160SL
160SL
160SL
160SL
160SL
160SL
Manual
Manual
Design
Design
Block
Block
Controls
Controls
Advanced
Advanced
Warranty
Warranty
lue
series
b