{"id":4508,"date":"2024-03-06T22:28:08","date_gmt":"2024-03-07T04:28:08","guid":{"rendered":"https:\/\/adcaraudio.com\/store\/?post_type=product&p=4508"},"modified":"2026-08-07T10:36:11","modified_gmt":"2026-08-07T16:36:11","slug":"4000-series-8-4-ohm-pair-pcx840s4","status":"publish","type":"product","link":"https:\/\/adcaraudio.com\/store\/product\/4000-series-8-4-ohm-pair-pcx840s4\/","title":{"rendered":"PCX840 S2\/S4 – 4000 Series 8″ Pro 2-way"},"content":{"rendered":"
Single 4 ohm<\/span>\r\nMidrange                    Tweeter<\/span>\r\nFs <\/strong>80 Hz                 Fs<\/strong>     640 Hz<\/span>\r\nQms <\/strong>7.861                SPL<\/strong>    107 dB<\/span>\r\nVas <\/strong>20.8467 l\r\nCms <\/strong>0.261 mm\/N\r\nMms <\/strong>15.004 g\r\nRms <\/strong>0.97 kg\/s\r\nDia <\/strong>173.80 mm\r\nSd <\/strong>237.79 cm\u00b2\t\r\nQes <\/strong>0.389\r\nRe <\/strong>3.71 \u03a9\r\nLe <\/strong>0.094 mH\r\nBl <\/strong>8.519 Tm\r\nQts <\/strong>0.371\r\nno <\/strong>2.689 %\r\nSPL <\/strong>97 dB\r\n\r\nSingle 2 ohm<\/span><\/strong>\r\nMidrange<\/strong>\r\nFs<\/strong> 83.5 Hz\r\nQms<\/strong> 8.176\r\nVas<\/strong> 18.3573 l\r\nCms<\/strong> 0.229 mm\/N\r\nMms<\/strong> 15.93 g\r\nRms<\/strong> 1.018 kg\/s\r\nDia<\/strong> 173.8 mm\r\nSd<\/strong> 237.79 cm\u00b2\r\nQes<\/strong> 0.344\r\nRe<\/strong> 1.88 \u03a9\r\nLe<\/strong> 0.068 mH\r\nBl<\/strong> 6.747 Tm\r\nQts<\/strong> 0.33\r\nno<\/strong> 2.989 %\r\nSPL<\/strong> 97 dB\r\n\r\n<\/pre>\n
Frame Outer Diameter<\/strong>\t8 19\/32\"   (218.5mm)\r\nGrille Outer Diameter<\/strong>\t\" (mm)\r\nMotor Outer Diameter<\/strong>\t3 15\/16\"   (100mm)\r\nTweeter Protrusion<\/strong>\t1  3\/32\"    (28mm)\r\nGrille Protrusion<\/strong>\t  \" (mm)\r\nMounting Hole Diameter<\/strong>\t7 3\/32\"   (180.3mm)\r\nMounting Depth<\/strong>\t\t3 15\/32\"  (88mm)\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
 <\/p>\n
    \n
  • 8″ (218.5 mm) Pro Coaxial<\/li>\n
  • Nylon and Fiberglass Composite Basket<\/li>\n
  • Waterproof Treated Paper Cone<\/li>\n
  • Waterproof Treated S-Roll Cloth Surround<\/li>\n
  • Waterproof Treated Cone Spider (covers horn gap)<\/li>\n
  • 1.5″ (38 mm) High Temperature Midrange Voice Coil<\/li>\n
  • High Energy N48 Neodymium Motor<\/li>\n
  • Gold Plated Terminals<\/li>\n
  • Composite Grills Available in White and Black (sold separately)<\/li>\n
  • 1.34″ (34mm) High Temperature Tweeter Voice Coil<\/li>\n
  • Waterproof Membrane in Horn Throat<\/li>\n
  • Aluminum Horn<\/li>\n
  • Polypropylene capacitor on tweeter<\/li>\n
  • 250 Watts RMS power handling*<\/li>\n
  • 97dB Midrange Sensitivity @ 1W\/1m<\/li>\n
  • 105dB Tweeter Sensitivity @ 1W\/1m<\/li>\n
  • Available in Single 2 ohm or Single 4 ohm coil configuration<\/li>\n<\/ul>\n
    All power ratings are figured using an electronic high pass crossover with a minimum crossover point of 150Hz at 24dB\/Octave, 200Hz at 18dB\/Octave, or 250Hz at 12dB\/Octave.<\/p>\n
    Sold in pairs<\/strong><\/span><\/p>\n","protected":false},"featured_media":4507,"template":"","meta":[],"product_brand":[],"product_cat":[71,68],"product_tag":[],"class_list":["post-4508","product","type-product","status-publish","has-post-thumbnail","product_cat-pro-2-way","product_cat-pro-audio","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"_links":{"self":[{"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/product\/4508","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/media\/4507"}],"wp:attachment":[{"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/media?parent=4508"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/product_brand?post=4508"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/product_cat?post=4508"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/product_tag?post=4508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}