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Greetings RBP,I've read and enjoyed your posts regarding dynamic linearity (or efficiency linearity, as I believe you more precisely call it), and I think you are right on the money. If memory serves me, you found that a 96 dB efficiency is probably ideal for neither dynamically compressing nor expanding the sound. Correct me if I'm wrong.
Now, suppose I take a 110 dB efficient horn and pad it down to match a 96 dB efficient woofer system. Does the horn exhibit the dynamic linearity behavior predicted by its inherent 110 dB efficiency, or its padded-down 96 dB efficiency?
Suppose rather than padding down the horn, I bi-amplify, so now the horn is 110 dB efficient but with the input level to its amplifier turned down. I assume that now the relative volume of the woofer and horn will be level-dependent, and at high volumes the horn will "run away" from the woofer (assuming the relative levels are set for low or medium volume listening). Is this correct?
Now suppose I take four 90 dB efficient woofers and wire them in series-parallel to get 96 dB efficiency. Does their dynamic linearity correspondingly improve?
Thank you for any light you (or anyone else) can shine in this direction.
Best wishes,
Duke
Follow Ups:
Hello Duke!!Great to hear from you!
Basically you are correct on all accounts and I appreciate you observing my observations as well. The Linear results are dependent on air motion effects also.
Say you pad the mid to 96dB to match the woofer, well if the mid horn has a "bright spot" ..even the padding will not fully smooth it out.
It is best to go for frequency linear, then dynamic lineararity.I will address this further as time permits.
Good to here from you!
Bill
I appreciate your taking the time to respond, Bill!Pardon my ignrnce, but what do you mean by "air motion effects"?
Subsonic and supersonic energy (below and above our audible range) is reproduced by high resoluton systems. Since sound is air motion, the effects of this "extra" inaudible air motion produces wave shifts and changes to the sound we do here. Having the extra octaves makes for more realistic reproduction with sounds we do perceive.
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