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High Frequency Compression Driver Evaluation
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<blockquote data-quote="Jack Arnott" data-source="post: 56831" data-attributes="member: 304"><p>Re: High Frequency Compression Driver Evaluation</p><p></p><p></p><p></p><p>Hello Art, </p><p>The exit angle of the 4552 is 24 degrees. </p><p>The exit angle of the 4550 is 14 degrees. </p><p>(This makes empirical sense, as the 4552 is much shallower, and would need to open up faster to get to 1")</p><p>Also, the exit angle of the 4554 (1.4") is 26.7 degrees, and that of the 4555 (1.5") is 30 degrees. </p><p>Which also makes sense, as they need to open up faster to get to 1.4" and 1.5", instead of 1".</p><p>The 4555 and 4554 are also rated to 1khz, instead of the 800hz that the 4550 is rated to.</p><p></p><p>Getting us back to the fact that the reason that the 4552 does not go as low is that the exit opens up faster. </p><p></p><p>Regards, Jack</p></blockquote><p></p>
[QUOTE="Jack Arnott, post: 56831, member: 304"] Re: High Frequency Compression Driver Evaluation Hello Art, The exit angle of the 4552 is 24 degrees. The exit angle of the 4550 is 14 degrees. (This makes empirical sense, as the 4552 is much shallower, and would need to open up faster to get to 1") Also, the exit angle of the 4554 (1.4") is 26.7 degrees, and that of the 4555 (1.5") is 30 degrees. Which also makes sense, as they need to open up faster to get to 1.4" and 1.5", instead of 1". The 4555 and 4554 are also rated to 1khz, instead of the 800hz that the 4550 is rated to. Getting us back to the fact that the reason that the 4552 does not go as low is that the exit opens up faster. Regards, Jack [/QUOTE]
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