Model Mix-up with SP‑218 / SP‑218B•Sound Prince SP‑218 is a well-known double 18” subwoofer. •Sound Prince SP‑218B is another variant (“B” version) with slightly different power ratings: 1,000 W RMS, 2,000 W peak, 4 Ω, sensitivity ~103 dB. 
Specifications
- <p>There’s <strong>no listing</strong> from known Sound Prince retailers (MACE, Gopandy, Zit, etc.) for a model named <strong>“218BX.”</strong></p><p><br></p><p>• The spec sheet for <strong>“SP 218BX”</strong> that <em>does</em> exist is from <strong>Peavey</strong>, not Sound Prince. </p><p>• Because of this, it’s very likely that “218BX” was a <strong>typo</strong>, a mis‑remembering, or a mislabel, possibly confusing Sound Prince’s <strong>SP‑218B</strong> or <strong>SP‑218TX</strong>.</p><p><br></p><p>⸻</p><p><br></p><p><strong>Closest Sound Prince Models & Their Specifications</strong></p><p><br></p><p>Here are the specs of the Sound Prince subwoofers that most likely match “218BX”:</p><p><br></p><p><strong>Sound Prince SP‑218 (Double Subwoofer)</strong></p><p>• Rated Power: <strong>1,000 W RMS</strong></p><p>• Frequency Response: <strong>35 Hz – 450 kHz</strong> (listing likely exaggerates upper range)</p>
