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<blockquote data-quote="ciaonzo" data-source="post: 8654220" data-attributes="member: 607015"><p>That looks really good, probably as ideal as it gets for a nice resistive load for the amplifier to "see" and the peaks are pretty benign. That means the amplifier is able to deliver gobs of current with ease over a wide range, all while cone motion is controlled. I suspect there is some decent excursion in the mid to upper 30's but the rest is pretty well damped. The enclosure is really productive (efficient) but the driver is a low BL design so it can only harness so much thermal energy before thermal compression sets in. I think that is the conundrum that you are experiencing. </p><p></p><p>28-29Hz (Fb) is where I would set output voltage. 50Hz is not in the .8 to 1 ohm region like 28-29Hz is. </p><p></p><p>The other thing I would do is lower your LP filter in order to limit the power the driver will receive in the upper frequencies. I like the balance that a 50Hz low pass has to offer. Is your front stage pretty decent?</p></blockquote><p></p>
[QUOTE="ciaonzo, post: 8654220, member: 607015"] That looks really good, probably as ideal as it gets for a nice resistive load for the amplifier to "see" and the peaks are pretty benign. That means the amplifier is able to deliver gobs of current with ease over a wide range, all while cone motion is controlled. I suspect there is some decent excursion in the mid to upper 30's but the rest is pretty well damped. The enclosure is really productive (efficient) but the driver is a low BL design so it can only harness so much thermal energy before thermal compression sets in. I think that is the conundrum that you are experiencing. 28-29Hz (Fb) is where I would set output voltage. 50Hz is not in the .8 to 1 ohm region like 28-29Hz is. The other thing I would do is lower your LP filter in order to limit the power the driver will receive in the upper frequencies. I like the balance that a 50Hz low pass has to offer. Is your front stage pretty decent? [/QUOTE]
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