Kling-freitag K&F CD 44 Digital System controller User Manual download pdf (Page 39)

User's manual K&F CD 44 Digital System Controller

The LS-Block 'Flat' is preset for 500W RMS @ 8 Ohm and 2000W Peak @ 8 Ohm.

Selected values for LimReduction, depending on the power ratings [W] of the speakers:

0 100

200

300 400

500

600

700

800

900

1000

-20 dB

-12 dB

-8 dB

-7 dB

-6 dB

-5 dB

-4 dB

-3 dB

-2 dB

-1 dB

0 dB

Typical values for 'LimReduction'

LimReduction [dB]

Loudspeaker RMS-Power [W]

= 16

= 8

= 6

= 4

3. Gain (output)

See chapter 'Input and Output Gains' on page 23.

4. Delay (output)

See chapter 'Input and Output Delays'on page 24.

5. AmpGain

This is where the CD 44 shows the determined amplifier gain of the power amplifiers

connected to the SENSE / RETURN connectors. After switching off the unit the

settings always stay at the last plausibly determined value. As soon as a signal that

can be analysed by the controller is applied to the Sense connectors, the controller

determines the gain of the connected power amplifier. This value helps the controller to

automatically adjust the limiter threshold. The controller continually checks this value

and re-adjusts the limiter thresholds automatically, for example, when the gain of the

power amplifier is changed manually.

• Amp1 for power amplifier channel at CH1

• Amp2 for power amplifier channel at CH2

• Amp3 for power amplifier channel at CH3

• Amp4 for power amplifier channel at CH4

Caution

If you do not use the connectors ’AMP RETURN / SENSE’, there is imminent danger that

the speakers could be destroyed. Exception: When operating the CD 44 with SP speakers,

the AMP RETURN / SENSE inputs are not used, since the SP speakers are equipped with

their own limiters. Further information in chapter 'SP Speakers on the CD 44' on page

65.

6. LimReduction

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Kling-freitag K&F CD 44 Digital System controller User Manual Page 39

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