Active Damping Control
With modern systems growing larger in size, the resistance added by lengthy cable runs starts to become an issue. With Active Damping Control, the effects of the resistance added by the length of the loudspeaker cable are automatically balanced.
How does Active Damping Control work?
By entering the length and the cross-section (area in mm²) of the copper cable used, the damping build-up of the cable is automatically calculated and eliminated.
The block diagram shows the feedback path: the output current I passes through a −R·K block, giving Vd = −(R·K)·I; this is added to the input Vi (Vo = Vd + Vi) ahead of block G; the line from G to A is labelled V = G·(Vi − (R·K)·I).
Key facts
- Addresses the resistance added by lengthy loudspeaker cable runs in large systems.
- Input required: the length and the cross-section (area in mm²) of the copper cable used.
- The damping build-up of the cable is automatically calculated and eliminated.
- Range: the correction is applied in the low-frequency band, not across the whole audio band.
What are the advantages of Active Damping Control?
- No cable lenght limits: Active Damping Control automatically balances the effects of the resistance added by the length of the loudspeaker cable.
- Simple setup: you only need to enter the length and the diameter of the copper cable used.
- Automatic compensation: the damping build-up of the cable is automatically calculated and eliminated.
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