KLING & FREITAG K&F CD 44 Digital System controller - Manual (Page 13)

User's manual K&F CD 44 Digital System Controller
KLING & FREITAG GMBH © 2014 Version 11.6 Page 13 of 77
Caution
Do not assign the inputs on the front and rear panel simultaneously. This can lead to
malfunction or damage of other appliances!
• Operations with analogue input signals, settings: In » Input Patching » Analog
(Default, Flipped or 1&2 Mix): Pin configuration: 1 = ground / 2 = + / 3 = - . The LINE
inputs are electronically balanced. The nominal input level is +6dBu (1.55Vrms).
The maximum input level is +18dBu, that is, the peaks in the signal must not exceed
+18dBu (6V).
• Operations with digital input signals, setting: In » Input Patching » Digital (Default,
Flipped or 1&2 Mix)
The input connectors 'INPUT 3' and 'INPUT 4' are not used in this setup! Pin
configuration: 1 = ground / 2 and 3 = digital signal. To avoid unexpectedly high
volume levels, reduce the controller’s input gains to a value of approx. –40 dBu
before supplying these connectors with a digital signal directly from an audio
source, and then adjust the level to your needs! Adjust input gain at: <In » Input1>
through <Input4 » Gain>
6. SIGNAL PRESENT, LIMIT
• SIGNAL PRESENT: These LEDs light up green when a signal with a level higher than –
45 dBu is present at the XLR output connectors on the rear of the unit (Out 1 through
Out 4).
• LIMIT: The output level of the controller is limited. As a result, the controller avoids
an output level of the power amplifiers which is too high for the connected speaker.
These LEDs light up red as soon as the output level of the relevant channel comes
under the influence of the controller’s limiters. A gently engaging RMS limiter and
a fast peak limiter limit the output of the power amplifiers virtually inaudibly to the
maximum permitted level. If the red limiter LEDs light up frequently, the level of the
input signal should be reduced on the signal source preferably (i.e. on the mixing
console).
7. Display
To change the contrast, go to <Util » Display » Contrast>.
8. Knob
Turn the knob to navigate through the menus and adjust the values. Push the knob to
confirm a selection, access the submenus, the command lines, and the settings.
9. EXIT botton
You can confirm the chosen settings by pushing the EXIT button, and the menu returns to
the next higher level.
10. FILTER A Button (Shortcut Button)
Pushing the FILTER A button allows you to directly access the freely adjustable parametric
filters (PEQs) without having to navigate through the menu.
Up to four parametric filters (PEQs) are available for every active input channel.
If a filter is active (BYP = bypass in edit mode not active), the blue LED on the FILTER A
button lights up.
For a detailed description see chapter 'Parametric Filters 'PEQ' + SEQ LShelv' on page
15.
11. FILTER B Button (Shortcut Button)
By pushing the FILTER B button, you can access pre-set speaker-specific filters, such as
High-Boost, Cluster and Bass Boost, etc.
These filters cannot be adjusted by the user; they can only be switched on or off.
If one of these filters is active, the blue LED on the FILTER B button lights up. FILTER B