User’s Manual System Controller C2
KLING & FREITAG GMBH ©2003 - 2006 Version 4.0, 23.03.2006 Page 9 of 33
3. Connectors, Functions, Controls and Displays
3.1 Front
CHANNEL 2 LINKCHANNEL 2 INCHANNEL 1 IN CHANNEL 1 LINK
CH1 TOP OUTCH1 SUB OUT CH2 TOP OUTCH2 SUB OUT
FULLRANGE
MODE
TOPHF
BOOST LOW CUT
GAIN
SUB
INPUT GAIN
C2
SYSTEM
CONTROLLER
CH2TOPSIGNAL
CH2TOPLIMIT
POWER
CH1TOPSIGNAL
CH1TOPLIMIT
SUB
MONO
CH1SUBSIGNAL
CH1SUBLIMIT
CH2SUBSIGNAL
CH2SUBLIMIT
23
1
45 7 9
11 13
15
8
6
10 12
14
1. CH 1 SUB OUT, and CH 2 SUB OUT
Speakon connectors, pin assignment: (1+ / 1-)
Channel 1 = CH 1, channel 2 = CH 2
These outputs direct the amplified signals from the power amplifiers to the sub-
woofers.
2. CH 1 TOP OUT and CH2 TOP OUT
Speakon connectors, pin assignment: (1+ / 1-)
Channel 1 = CH 1, channel 2 = CH 2
These outputs direct the amplified signals from the power amplifiers to the mid-
high systems.
3. CHANNEL 1 IN /CHANNEL 1 LINK and CHANNEL 2 IN /CHANNEL 2 LINK, XLR
connectors, pin assignment: 1 ground / 2 + / 3 -
Channel 1 = CHANNEL 1, channel 2 = CHANNEL 2
IN (XLR female): electronically balanced line inputs for channels 1 and 2.
These connectors are used to connect line signals,
e.g. from a mixer output.
LINK (XLR male): outputs for linking a line level signal, which is connected
to the corresponding 'IN’ connector, e.g. in order to direct
the signal to further controllers or power amplifiers.
The 'IN' and 'LINK' connectors are wired together in parallel.
Further parallel-wired input connectors are situated at the rear of the controller
and are labelled CH 1 INPUT and CH 2 INPUT.
4. INPUT GAIN, level control
The INPUT GAIN control is used to set the input level of the C2 Controller. The in-
put level can be increased by 6 dB and reduced by 40 dB. In order to avoid over-
loading the input section of the amplifier or the mixer output circuit, this control
should normally be set at 0 dB.
Turning down the input level controls may not always prevent distortions in the in-
put section of the power amplifier, especially if this section has a relatively low
headroom. To prevent signal interruptions or damages to the speakers, turn the le-
vel controls of the power amplifier to the maximum position, if possible and adjust
the signal level on the mixing console or the controller.
5. SUB GAIN, level control (also see as of chapter 8, page 18)
During operation with additional bass systems it is very important that the relative
volume levels of the top speakers and the bass systems are correctly balanced. The
SUB GAIN control is used to adjust these volume levels. Always use the controller to
set the relative volume levels of the tops and bass systems, with the power amplifier
turned up as high as possible. Detailed advice on how the level adjustment
Detailed advice on how the level adjustmentDetailed advice on how the level adjustment
Detailed advice on how the level adjustment
should be set to suit various loudspeaker combinations can be found as of
should be set to suit various loudspeaker combinations can be found as ofshould be set to suit various loudspeaker combinations can be found as of
should be set to suit various loudspeaker combinations can be found as of
chapter
chapterchapter
chapter 8
88
8, page
, page, page
, page 18
1818
18.
..
.
