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Going Infinite Baffle, What 15 or 18 is good?
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<blockquote data-quote="Dtour" data-source="post: 3417635" data-attributes="member: 578467"><p>Aura Sound</p><p></p><p>NS15-992-4A</p><p></p><p>Nominal Diameter . . . . . . . . . . . . . . .15 inches (393 mm)</p><p></p><p>Nominal Impedance (Z) . . . . . . . . . . 4 Ohms</p><p></p><p>Sensitivity, 1W/1m (E) . . . . . . . . . . . 86 dB @ 100 Hz</p><p></p><p>Power Capacity, RMS (Pe) . . . . . . . . 800 W</p><p></p><p>Power Capacity, Peak . . . . . . . . . . . 3200 W</p><p></p><p>Frequency Range (-10dB) . . . . . . . . Fo - 1.5 kHz</p><p></p><p>Minimum Impedance . . . . . . . . . . . . 5 ohms</p><p></p><p>Voice Coil Diameter . . . . . . . . . . . . . 99.2 mm</p><p></p><p>Voice Coil Winding Length (h) . . . . . 25.4 mm</p><p></p><p>Voice Coil Number of Layers <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite23" alt="(n)" title="Thumbs down (n)" loading="lazy" data-shortname="(n)" /> . . . . 1</p><p></p><p>Voice Coil Former Material . . . . . . . . Glass composite</p><p></p><p>Voice Coil Wire Composition . . . . . . Aluminum Ribbon</p><p></p><p>Magnetic Material . . . . . . . . . . . . . . Neodymium radial</p><p></p><p>Stray Flux Shielding . . . . . . . . . . . . . Inherent</p><p></p><p>Magnetic Gap Depth (He) . . . . . . . . 50.8 mm</p><p></p><p>Cone Material . . . . . . . . . . . . . . . . . Aluminum</p><p></p><p>Surround Material . . . . . . . . . . . . . . Injecton molded rubber</p><p></p><p>Polarity, Outward Motion . . . . . . . . . Positive voltage on (+) terminal</p><p></p><p>Net Weight . . . . . . . . . . . . . . . . . . . . 20.1 kg</p><p></p><p>Thiele / Small Parameters</p><p></p><p>Resonant Frequency (Fo) - Fs . . . . . 20 Hertz</p><p></p><p>Voice Coil DC Resistance - Re . . . . . 3.3 ohms</p><p></p><p>Total Q - Qts . . . . . . . . . . . . . . . . . . 0.37</p><p></p><p>Mechanical Q - Qms . . . . . . . . . . . . 8.0</p><p></p><p>Electrical Q - Qes . . . . . . . . . . . . . . 0.40</p><p></p><p>Equivalent Volume of Air - Vas . . . . . 169 L</p><p></p><p>Radiating Piston Area - Sd . . . . . . . . 765 cm 2</p><p></p><p>Electrical / Mechanical Parameters</p><p></p><p>Flux Density x Length - BL . . . . . . . . 18 Tesla-meters</p><p></p><p>Compliance - Cms . . . . . . . . . . . . . . 206 mm/N</p><p></p><p>Total Mass - Mms . . . . . . . . . . . . . . 314 grams</p><p></p><p>Impedance</p><p></p><p>Frequency Response (1W, 1m)</p><p></p><p>Maximum Excursion . . . . . . . . . . . . . 75 mm peak to peak</p><p></p><p>Xmax . . . . . . . . . . . . . . . . . . . . . . . . 38 mm peak to peak</p><p></p><p>Distortion (1W, 1m)</p><p></p><p>I purchased one last night, read a ton of reviews and have yet to find anything negative about them, these ar used in Wilson Audio cabs</p></blockquote><p></p>
[QUOTE="Dtour, post: 3417635, member: 578467"] Aura Sound NS15-992-4A Nominal Diameter . . . . . . . . . . . . . . .15 inches (393 mm) Nominal Impedance (Z) . . . . . . . . . . 4 Ohms Sensitivity, 1W/1m (E) . . . . . . . . . . . 86 dB @ 100 Hz Power Capacity, RMS (Pe) . . . . . . . . 800 W Power Capacity, Peak . . . . . . . . . . . 3200 W Frequency Range (-10dB) . . . . . . . . Fo - 1.5 kHz Minimum Impedance . . . . . . . . . . . . 5 ohms Voice Coil Diameter . . . . . . . . . . . . . 99.2 mm Voice Coil Winding Length (h) . . . . . 25.4 mm Voice Coil Number of Layers (n) . . . . 1 Voice Coil Former Material . . . . . . . . Glass composite Voice Coil Wire Composition . . . . . . Aluminum Ribbon Magnetic Material . . . . . . . . . . . . . . Neodymium radial Stray Flux Shielding . . . . . . . . . . . . . Inherent Magnetic Gap Depth (He) . . . . . . . . 50.8 mm Cone Material . . . . . . . . . . . . . . . . . Aluminum Surround Material . . . . . . . . . . . . . . Injecton molded rubber Polarity, Outward Motion . . . . . . . . . Positive voltage on (+) terminal Net Weight . . . . . . . . . . . . . . . . . . . . 20.1 kg Thiele / Small Parameters Resonant Frequency (Fo) - Fs . . . . . 20 Hertz Voice Coil DC Resistance - Re . . . . . 3.3 ohms Total Q - Qts . . . . . . . . . . . . . . . . . . 0.37 Mechanical Q - Qms . . . . . . . . . . . . 8.0 Electrical Q - Qes . . . . . . . . . . . . . . 0.40 Equivalent Volume of Air - Vas . . . . . 169 L Radiating Piston Area - Sd . . . . . . . . 765 cm 2 Electrical / Mechanical Parameters Flux Density x Length - BL . . . . . . . . 18 Tesla-meters Compliance - Cms . . . . . . . . . . . . . . 206 mm/N Total Mass - Mms . . . . . . . . . . . . . . 314 grams Impedance Frequency Response (1W, 1m) Maximum Excursion . . . . . . . . . . . . . 75 mm peak to peak Xmax . . . . . . . . . . . . . . . . . . . . . . . . 38 mm peak to peak Distortion (1W, 1m) I purchased one last night, read a ton of reviews and have yet to find anything negative about them, these ar used in Wilson Audio cabs [/QUOTE]
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