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        "rendered": "<h2 class=\"yikes-custom-woo-tab-title yikes-custom-woo-tab-title-specs\">Specs<\/h2>\n<ul>\n<li>Nominal Impedance 4 \u03a9<\/li>\n<li>DC resistance, Re 3.1 \u03a9<\/li>\n<li>Voice coil inductance, Le 0.04 mH<\/li>\n<li>Effective piston area, Sd 4.6 cm<sup>2<\/sup><\/li>\n<li>Voice coil diameter 20.4 mm<\/li>\n<li>Voice coil height 1.5 mm<\/li>\n<li>Air gap height 2.0 mm<\/li>\n<li>Linear coil travel (p-p) 0.5 mm<\/li>\n<li>Moving mass incl. air, Mms 0.25 g<\/li>\n<li>Free air resonance, Fs 850 Hz<\/li>\n<li>Sensitivity (2.83V\/1m) 89.5 dB<\/li>\n<li>Mechanical Q-factor, Qms 2.71<\/li>\n<li>Electrical Q-factor, Qes 2.45<\/li>\n<li>Total Q-factor, Qts 1.28<\/li>\n<li>Force factor, Bl 1.3 Tm<\/li>\n<li>Rated power handling* 40 W<\/li>\n<li>Magnetic flux density 0.9 T<\/li>\n<li>Magnet weight 0.01 kg<\/li>\n<li>Net weight 0.06 kg<\/li>\n<\/ul>\n<p>* IEC 268-5, high-pass Butterworth, 2600 Hz, 12 dB\/oct.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1625\" src=\"https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-GRAFIK-500x237-1-300x142.jpg\" alt=\"\" width=\"300\" height=\"142\" srcset=\"https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-GRAFIK-500x237-1-300x142.jpg 300w, https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-GRAFIK-500x237-1-18x9.jpg 18w, https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-GRAFIK-500x237-1.jpg 500w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1624\" src=\"https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-DRAWING-500x246-1-300x148.jpg\" alt=\"\" width=\"300\" height=\"148\" srcset=\"https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-DRAWING-500x246-1-300x148.jpg 300w, https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-DRAWING-500x246-1-18x9.jpg 18w, https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-DRAWING-500x246-1.jpg 500w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1623\" src=\"https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-1-300x300-1.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-1-300x300-1.jpg 300w, https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-1-300x300-1-150x150.jpg 150w, https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-1-300x300-1-12x12.jpg 12w, https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-1-300x300-1-100x100.jpg 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1622\" src=\"https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-2-300x300-1.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-2-300x300-1.jpg 300w, https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-2-300x300-1-150x150.jpg 150w, https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-2-300x300-1-12x12.jpg 12w, https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-2-300x300-1-100x100.jpg 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1621\" src=\"https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-3-300x300-1.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-3-300x300-1.jpg 300w, https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-3-300x300-1-150x150.jpg 150w, https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-3-300x300-1-12x12.jpg 12w, https:\/\/pltspeaker.com\/wp-content\/uploads\/2025\/07\/SB21RDCN-C000-4-3-300x300-1-100x100.jpg 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>",
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