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RD vs Sundown?
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<blockquote data-quote="Electrodynamic" data-source="post: 6688239" data-attributes="member: 548723"><p>Technically the two RD Alpha 12's don't out-displace the single Nightshade 15. See this quick comparison below:</p><p></p><p>Two RD Audio Alpha 12 D1’s (assuming he has two D1's since his final impedance is 1 Ohm):</p><p></p><p>Per Alpha 12;</p><p></p><p>Sd: 490 cm^2 (giving it credit because RD doesn’t list Sd)</p><p></p><p>BL^2/Re: 263 (assuming that RD's Re is correct with 1.3 Ohm with the coils wired in series)</p><p></p><p>Xmax: 16mm</p><p></p><p>Displacement for one Alpha 12: 784 cm^3 for one, so 1568 cm^3 for two.</p><p></p><p>One Sundown Audio Nightshade 15 D1:</p><p></p><p>Sd: 810 cm^2</p><p></p><p>BL^2/Re: 173</p><p></p><p>Xmax: 23 mm</p><p></p><p>Displacement for one NS15: 1863 cm^3</p></blockquote><p></p>
[QUOTE="Electrodynamic, post: 6688239, member: 548723"] Technically the two RD Alpha 12's don't out-displace the single Nightshade 15. See this quick comparison below: Two RD Audio Alpha 12 D1’s (assuming he has two D1's since his final impedance is 1 Ohm): Per Alpha 12; Sd: 490 cm^2 (giving it credit because RD doesn’t list Sd) BL^2/Re: 263 (assuming that RD's Re is correct with 1.3 Ohm with the coils wired in series) Xmax: 16mm Displacement for one Alpha 12: 784 cm^3 for one, so 1568 cm^3 for two. One Sundown Audio Nightshade 15 D1: Sd: 810 cm^2 BL^2/Re: 173 Xmax: 23 mm Displacement for one NS15: 1863 cm^3 [/QUOTE]
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