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<blockquote data-quote="bigbassman" data-source="post: 75186" data-attributes="member: 542419"><p>that spike is a typical characteristic of any sub.. placed in that box... There's really nothing that can be done about it.... Altering volume, can cause the spike to change frequency wise ( larger boxes the spike happens lower in the frequency range, and vice versa) Woofers can react a little differently, but for the most part... all will have that peak in the 50-60hz range...</p><p></p><p>And altering the Box Q, as it's shown in the program, just raises impedence even further...</p><p></p><p>Finding, and taking advantage of actual impedence, is a major trick in SPL.... It's why people run D2's at .5 ohm nominal, and why I'm running 4 ohm stable class A/B amps at 1.2 ohm nominal daily.... //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif The definition for nominal, as it pertains to car audio means: existing or being something in name or form only...</p><p></p><p>Loyd L.</p></blockquote><p></p>
[QUOTE="bigbassman, post: 75186, member: 542419"] that spike is a typical characteristic of any sub.. placed in that box... There's really nothing that can be done about it.... Altering volume, can cause the spike to change frequency wise ( larger boxes the spike happens lower in the frequency range, and vice versa) Woofers can react a little differently, but for the most part... all will have that peak in the 50-60hz range... And altering the Box Q, as it's shown in the program, just raises impedence even further... Finding, and taking advantage of actual impedence, is a major trick in SPL.... It's why people run D2's at .5 ohm nominal, and why I'm running 4 ohm stable class A/B amps at 1.2 ohm nominal daily.... [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] The definition for nominal, as it pertains to car audio means: existing or being something in name or form only... Loyd L. [/QUOTE]
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