Daniel Postilnik wrote on Mon, 07 February 2011 11:55 |
Does the Crown XLS drivecore series dsp include limiting of watts? So far I've only seen that it can limit based on the input level, like "-2db" or whatever it may be. Is this the same thing?
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There is no way to DSP limit watts unless the amplifier can do real-time impedance analysis of the load, or somehow compare the current and voltage waveforms being sent to the speaker. Usual amplifier and DSP limiters are entirely based on voltage, even the Itech limiters that use watts (they actually ask for nominal impedance and watts, and calculate voltage based on that).
Theoretically, voltage (and therefore wattage) could be calculated using "-2dB" limiters, but it wouldn't be easy, or particularly accurate.
The attack, release, ratio, and other specifics of the limiter would also influence its effectiveness, and whether it was more of a "peak" or "rms" limiter.