Fig. 1: For every EQ filter desired, the DSP must be told the frequency, amplitude, and bandwidth of the filter. (Chart Credit: rane.com)
It is widely known that different Digital Signal Processors (DSPs) sound different. I have heard this difference ascribed to everything from sample rate to the quality of the limiters, whatever that means. Certainly there is a difference to be found, but I suspect it is not going to be discovered using audiophile words like "warmth" and "depth." Largely to satisfy my own curiosity, I asked users of Sound Forums Network pro audio community (www.soundforums.net) to input a set of identical settings into whatever DSP they had access to and send me the results.
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