{"product_id":"sp-8act-1-active-8-subwoofer-2-passive-8-subwoofer","title":"SP-8ACT (1 سبووفر نشط 8 بوصة + 2 سبووفر سلبي 8 بوصة)","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cstyle\u003e.sp4{background:#0B0B0B;color:#E8E8E8;border-radius:14px;overflow:hidden;font-size:16px;line-height:1.6}.sp4 img{display:block;width:100%;height:auto}.sp4 .band{background:#E8560F}.sp4 .pill{display:inline-block;background:#E8560F;color:#fff;font-size:9.5px;font-weight:800;letter-spacing:1.5px;padding:6px 10px;text-transform:uppercase;white-space:nowrap}.sp4 h2.big,.sp4 .sec h3,.sp4 .card b,.sp4 .faq b,.sp4 .pair strong{color:#fff}.sp4 .in,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .top,.sp4 .vids,.sp4 .rea{padding-left:22px;padding-right:22px}.sp4 .vids figure{margin:0 auto 16px;max-width:430px}.sp4 .vids video{display:block;width:100%;height:auto;background:#0B0B0B;border:1px solid #262626;border-radius:10px}.sp4 .vids figcaption{font-size:10.5px;letter-spacing:1.4px;color:#9d9d9d;text-transform:uppercase;padding:9px 2px 0;text-align:center}.sp4 .vids figcaption b{color:#E8560F}.sp4 .rea{display:flex;flex-wrap:wrap;gap:8px;padding-top:6px;padding-bottom:4px}.sp4 .rea span{flex:1 1 150px;background:#161616;border:1px solid #262626;border-left:3px solid #E8560F;padding:9px 11px;font-size:10.5px;font-weight:800;letter-spacing:1.2px;color:#d6d6d6;text-transform:uppercase}.sp4 .top{display:flex;align-items:center;justify-content:space-between;gap:14px}.sp4 .top img{width:186px;height:105px;flex:0 0 auto}.sp4 .trust{display:flex;flex-wrap:wrap;gap:8px;padding:8px 22px 0}.sp4 .trust span{flex:1 1 165px;background:#111;border:1px solid #232323;padding:8px 10px;font-size:10px;font-weight:800;letter-spacing:1.1px;color:#9d9d9d;text-transform:uppercase}.sp4 .trust b{color:#E8560F;font-weight:800}.sp4 .paym{padding:14px 22px 2px;font-size:9.5px;font-weight:800;letter-spacing:1.7px;line-height:1.8;color:#7a7a7a;text-transform:uppercase;text-align:center}@media screen and (min-width:1000px){.product{row-gap:0!important}.product-info{display:contents!important}.product-gallery{grid-column:1!important;grid-row:1\/span 99!important}.product-info__block-item{grid-column:2!important}.product-info__block-item[data-block-type=description]{grid-column:1\/-1!important;grid-row:100!important;margin-top:44px!important}.sp4{font-size:17px}.sp4 .in,.sp4 .top,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .rea,.sp4 .sec,.sp4 .band,.sp4 .paym,.sp4 .fine,.sp4 .swipe,.sp4 .pnl,.sp4 .trust{padding-left:40px;padding-right:40px}.sp4 .frame,.sp4 .quote,.sp4 .dl,.sp4 .cw,.sp4 .tw,.sp4 .warn,.sp4 .faq,.sp4 .sup{margin-left:40px;margin-right:40px}.sp4 h2.big{font-size:66px}.sp4 .sub{max-width:66ch;font-size:17px}.sp4 .band b{font-size:46px}.sp4 .card{flex:1 1 300px}.sp4 .cards{gap:14px}.sp4 .pnl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px}.sp4 .tw,.sp4 .warn,.sp4 .sup{max-width:1040px;margin-left:auto;margin-right:auto}.sp4 .dl{max-width:780px;margin-left:auto;margin-right:auto}.sp4 .quote{max-width:1150px}.sp4 .faq{columns:2;column-gap:40px}.sp4 .faq div{break-inside:avoid}.sp4 .sec{margin-top:48px}.sp4 .swipe figure{flex:0 0 330px;max-width:330px}}\u003c\/style\u003e\n\u003cdiv class=\"sp4\"\u003e\n\u003cdiv class=\"top\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-audio-logo-mark.png?v=1788926315\u0026amp;width=380\" alt=\"SP Audio - Super Power Audio\" width=\"186\" height=\"105\" decoding=\"async\"\u003e\u003cspan class=\"rg\"\u003e\u003cb\u003eSUPER POWER AUDIO\u003c\/b\u003e\u003cbr\u003eDESIGNED IN ITALY\u003cbr\u003eMMXXVI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"in\"\u003e\n\u003cspan class=\"pill\"\u003eactive box · amplifier built in · 8 inch\u003c\/span\u003e\n\u003ch2 class=\"big d\"\u003eOne box.\u003cbr\u003e\u003cem\u003eNothing else to buy.\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"sub\"\u003eAn 8\" active subwoofer with its own 120 W RMS Class AB amplifier and two 6.5\" passive radiators. No separate amplifier, no port tuning, no enclosure to build: RCA in, +12 V in, and the low end is there.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frame\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/download_1dfca233-2d6f-4a77-a5e6-88124c80f63b.jpg?v=1790009319\u0026amp;width=760\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/download_1dfca233-2d6f-4a77-a5e6-88124c80f63b.jpg?v=1790009319\u0026amp;width=440 440w, https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/download_1dfca233-2d6f-4a77-a5e6-88124c80f63b.jpg?v=1790009319\u0026amp;width=620 620w, https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/download_1dfca233-2d6f-4a77-a5e6-88124c80f63b.jpg?v=1790009319\u0026amp;width=900 900w\" sizes=\"(max-width: 640px) 92vw, 660px\" alt=\"SP-8ACT active subwoofer box in a car, built-in Class AB amplifier panel and orange trimmed 8 inch woofer\" width=\"760\" height=\"570\" decoding=\"async\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"tri\"\u003e\n\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"band\"\u003e\n\u003cdiv\u003e\n\u003cb\u003e120\u003ci\u003eW\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eRMS · 4 Ω · BUILT-IN AMP\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e8\u003ci\u003e\"\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eACTIVE + 2 × 6.5\" PASSIVE\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e107\u003ci\u003edB\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eMAX SPL · 120 W AT 1 M\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e01\u003c\/u\u003e\n\u003ch3\u003eWatch it\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vids\"\u003e\n\u003cfigure\u003e\u003cvideo controls=\"controls\" preload=\"none\" playsinline=\"\" poster=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/preview_images\/c7b89159b5114f85a460d56da5f07305.thumbnail.0000000000.jpg?width=520\"\u003e\u003csource src=\"https:\/\/cdn.shopify.com\/videos\/c\/vp\/c7b89159b5114f85a460d56da5f07305\/c7b89159b5114f85a460d56da5f07305.HD-720p-2.1Mbps-96018304.mp4\" type=\"video\/mp4\"\u003eYour browser cannot play this video.\u003c\/source\u003e\u003c\/video\u003e\n\u003cfigcaption\u003e\u003cb\u003eThe SP-8ACT in video\u003c\/b\u003e · the box, the passive radiators, the panel · audio in English · 0:30\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rea\"\u003e\n\u003cspan\u003eFree shipping\u003c\/span\u003e\u003cspan\u003eDispatched from Italy in 24–48 working hours\u003c\/span\u003e\u003cspan\u003eWarranty on manufacturing defects\u003c\/span\u003e\u003cspan\u003eFree technical support from Italy\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"dl\"\u003e\n\u003cdiv class=\"k\"\u003eUSER MANUAL SP-8ACT\u003c\/div\u003e\n\u003cp\u003eWiring, installation, settings and full specifications.\u003c\/p\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/SPAUDIO-SP-8ACT-Manual-EN-2026.pdf?v=1790621476\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background: rgb(232, 86, 15); padding: 18px 36px; border-radius: 6px; letter-spacing: 1px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-transform: uppercase; box-shadow: rgba(232, 86, 15, 0.35) 0px 8px 24px;\"\u003e\u003cb\u003e⇩ Open the manual (PDF)\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003cp class=\"n\"\u003ePDF · English · 2026\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"trust\"\u003e\n\u003cspan\u003e\u003cb\u003e🔒\u003c\/b\u003e Secure checkout · SSL \u0026amp; PCI DSS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e↩\u003c\/b\u003e 14 days to change your mind (EU)\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e Invoice from an Italian company\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 12px;\"\u003e▶ NOTHING IS DOWNLOADED UNTIL YOU PRESS PLAY\u003c\/p\u003e\n\u003cdiv class=\"tags\"\u003e\n\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e ITALIAN DESIGN\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e AMPLIFIER BUILT IN\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e EASY INSTALL\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e FREE SUPPORT\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e PASSIVE RADIATORS\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e02\u003c\/u\u003e\n\u003ch3\u003ePower, measured not promised\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar\"\u003e\n\u003cspan\u003eAMP · 4 Ω\u003c\/span\u003e\n\u003cdiv class=\"trk\"\u003e\n\u003cdiv class=\"fil\" style=\"width: 24%;\"\u003e120 W RMS\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar\"\u003e\n\u003cspan\u003eWOOFER\u003c\/span\u003e\n\u003cdiv class=\"trk\"\u003e\n\u003cdiv class=\"fil mx\" style=\"width: 100%;\"\u003e500 W RMS\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"foot\"\u003eBUILT-IN CLASS AB AMPLIFIER 120 W RMS @ 4 Ω · WOOFER RATED 500 W RMS · CONTINUOUS POWER, NOT BURST\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e03\u003c\/u\u003e\n\u003ch3\u003eWhy this box\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cards\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eThe amplifier is already inside\u003c\/b\u003e\n\u003cp\u003eA 120 W RMS Class AB stage at 4 ohm is built into the enclosure and matched to the woofer at the factory. No separate amplifier, no gain matching, no second power run.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eTwo passive radiators instead of a port\u003c\/b\u003e\n\u003cp\u003eTwo 6.5\" passive radiators load the 8\" woofer and extend the low end without a tuning port — no port noise, and a shorter box than a vented design of the same output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eIt fits in a real boot\u003c\/b\u003e\n\u003cp\u003e(224 mm + 270 mm) × 255 × 245 mm. The tapered shape sits against a wheel arch or a boot side wall instead of stealing the middle of the load space.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eBuilt like a driver, not like a toy\u003c\/b\u003e\n\u003cp\u003e8\" paper cone with a rubber surround, 775 g (28 oz) magnet and a 1.4\" (35.6 mm) voice coil at 4 ohm. The woofer alone is rated 500 W RMS: the amplifier never pushes it to its limit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"quote\"\u003e“Continuous RMS only. No peak, no burst, no marketing watts.”\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e04\u003c\/u\u003e\n\u003ch3\u003eNo port. Two radiators.\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cw\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eThe two 6.5\" membranes are drivers without a motor.\u003c\/b\u003e\n\u003cp\u003eThey are moved by the pressure of the 8\" woofer inside the sealed box. They add cone area and low-frequency output the way a port would, but without a tube: no chuffing at high level, no tuning to get wrong, and the box stays compact.\u003c\/p\u003e\n\u003cp class=\"sm\"\u003e\u003cb\u003eIn the box:\u003c\/b\u003e SP-8ACT active subwoofer with built-in amplifier.\u003cbr\u003e\u003cb\u003eNot included:\u003c\/b\u003e power cable, inline fuse holder and RCA cable — installation materials, chosen for your vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/download_6a6122df-5599-4815-81ba-7e6d64f153ce.jpg?v=1790009318\u0026amp;width=560\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/download_6a6122df-5599-4815-81ba-7e6d64f153ce.jpg?v=1790009318\u0026amp;width=380 380w, https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/download_6a6122df-5599-4815-81ba-7e6d64f153ce.jpg?v=1790009318\u0026amp;width=560 560w\" sizes=\"(max-width: 640px) 92vw, 340px\" alt=\"SP-8ACT: the 8 inch active woofer with orange trim and the enclosure with RCA cables\" width=\"560\" height=\"420\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e05\u003c\/u\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tw\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eBUILT-IN AMPLIFIER\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTopology\u003c\/td\u003e\n\u003ctd\u003eClass AB, built in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e120 W RMS @ 4 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eWOOFER\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActive driver\u003c\/td\u003e\n\u003ctd\u003e8\" (20 cm), 1 unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCone \/ surround\u003c\/td\u003e\n\u003ctd\u003ePaper cone, rubber surround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnet\u003c\/td\u003e\n\u003ctd\u003e775 g (28 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice coil\u003c\/td\u003e\n\u003ctd\u003e1.4\" (35.6 mm), 4 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e4 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated power\u003c\/td\u003e\n\u003ctd\u003e500 W RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax power\u003c\/td\u003e\n\u003ctd\u003e1000 W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eACOUSTIC\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePassive radiators\u003c\/td\u003e\n\u003ctd\u003e6.5\", 2 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e40 Hz – 600 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e86 ± 2 dB \/ 1 W at 1 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax SPL\u003c\/td\u003e\n\u003ctd\u003e107 ± 2 dB \/ 120 W at 1 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eMECHANICAL\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions W × D × H\u003c\/td\u003e\n\u003ctd\u003e(224 mm + 270 mm) × 255 × 245 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure\u003c\/td\u003e\n\u003ctd\u003ePassive-radiator box with built-in amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003eMANUFACTURER’S LABORATORY DATA · THE 1000 W FIGURE IS A MAXIMUM, NOT AN RMS RATING · THE AMPLIFIER DELIVERS 120 W RMS\u003c\/p\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/SPAUDIO-SP-8ACT-Manual-EN-2026.pdf?v=1790621476\"\u003eUSER MANUAL\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e06\u003c\/u\u003e\n\u003ch3\u003eComplete the system\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pair\"\u003e\n\u003ca href=\"\/ar\/products\/rca-super-soft5-meter\"\u003e\u003csmall\u003eSIGNAL CABLE\u003c\/small\u003e\u003cstrong\u003eSP RCA 5 m super soft\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/ar\/products\/rca-splitter-2-pcs-in-1-gift-box-1-female-2-male\"\u003e\u003csmall\u003eSPLIT THE SIGNAL\u003c\/small\u003e\u003cstrong\u003eSP Y-cable 1F \/ 2M\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/ar\/products\/kit-cable-8-awg\"\u003e\u003csmall\u003ePOWER KIT\u003c\/small\u003e\u003cstrong\u003eSP KIT CABLE 8 AWG\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/ar\/products\/sp-afs-01-fuseholder-mini-anl-1x4ga-8ga-in-1x4-8-ga-out\"\u003e\u003csmall\u003eLINE PROTECTION\u003c\/small\u003e\u003cstrong\u003eSP AFS4 fuse holder 4 \/ 8 GA\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e07\u003c\/u\u003e\n\u003ch3\u003eBefore you install it\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warn\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eInline main fuse within 20 cm of the battery\u003c\/b\u003e, sized to the cable. The box takes its power straight from the battery: that run must be protected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeave the passive radiators free.\u003c\/b\u003e The two 6.5\" membranes must be able to move: never press luggage, a parcel shelf or foam against them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure the box.\u003c\/b\u003e It is a mass moving in a boot. Strap it or bolt it down: an unrestrained enclosure is dangerous under braking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e12 V systems only\u003c\/b\u003e, negative ground. Professional installation is recommended: damage caused by improper installation is not covered by warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e08\u003c\/u\u003e\n\u003ch3\u003eQuestions installers ask\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eDo I need a separate amplifier?\u003c\/b\u003eNo. The Class AB amplifier is built into the box and already matched to the woofer: 120 W RMS at 4 ohm. You only run power, ground, remote and the RCA signal.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat are the two smaller cones for?\u003c\/b\u003eThey are passive radiators, 6.5\" each. They have no motor and no wiring: the 8\" woofer drives them through the air inside the box, and they extend the low end without a port.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhich power cable and fuse?\u003c\/b\u003eAn 8 AWG kit is enough for a 120 W RMS box, with an inline fuse within 20 cm of the battery sized to the cable and a ground point on bare metal.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWill it fit in my boot?\u003c\/b\u003e(224 mm + 270 mm) × 255 × 245 mm. The tapered footprint is made to sit along a boot wall or a wheel arch rather than in the middle of the floor.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eHow low does it go?\u003c\/b\u003eThe system is specified from 40 Hz, with a sensitivity of 86 ± 2 dB \/ 1 W at 1 m and a maximum SPL of 107 ± 2 dB at 120 W, measured at 1 m.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sup\"\u003e\n\u003cb\u003eFree technical support from Italy.\u003c\/b\u003e Write or call and a person answers, with the real data of the product sheets. Tell us what you want to build — impedance, power, box litres, crossover points — and we will help you match it.\u003cbr\u003e\u003ca href=\"mailto:spaudio@spaudio.it\"\u003espaudio@spaudio.it\u003c\/a\u003e · +39 340 807 8778\u003c\/div\u003e\n\u003cp class=\"paym\"\u003eAccepted payment methods\u003cbr\u003eVisa · Mastercard · Maestro · American Express · PayPal · Apple Pay · Google Pay · Shop Pay · Klarna\u003c\/p\u003e\n\u003cp class=\"fine\"\u003eSP Audio — Super Power Audio. Designed in Italy by Audiocar Import \u0026amp; Export SRLS, Milano, official SP Audio distributor for Europe.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the SP-8ACT need a separate amplifier?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The Class AB amplifier is built into the box and already matched to the woofer: 120 W RMS at 4 ohm. You only run power, ground, remote and the RCA signal.\"}},{\"@type\":\"Question\",\"name\":\"What are the two smaller cones on the SP-8ACT?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"They are passive radiators, 6.5 inch each. They have no motor and no wiring: the 8 inch woofer drives them through the air inside the box, and they extend the low end without a port.\"}},{\"@type\":\"Question\",\"name\":\"Which power cable and fuse does the SP-8ACT need?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"An 8 AWG kit is enough for a 120 W RMS box, with an inline fuse within 20 cm of the battery sized to the cable and a ground point on bare metal.\"}},{\"@type\":\"Question\",\"name\":\"What are the dimensions of the SP-8ACT?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"(224 mm + 270 mm) x 255 x 245 mm, width x depth x height. The tapered footprint is made to sit along a boot wall or a wheel arch.\"}},{\"@type\":\"Question\",\"name\":\"How low does the SP-8ACT go?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The system is specified from 40 Hz, with a sensitivity of 86 +\/- 2 dB \/ 1 W at 1 m and a maximum SPL of 107 +\/- 2 dB at 120 W, measured at 1 m.\"}}]}\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"VideoObject\",\"name\":\"SP-8ACT active subwoofer - 8 inch active woofer, two 6.5 inch passive radiators, built-in amplifier\",\"description\":\"Product video of the SP Audio SP-8ACT: an 8 inch active subwoofer box with a built-in 120 W RMS Class AB amplifier at 4 ohm and two 6.5 inch passive radiators, dimensions (224 mm + 270 mm) x 255 x 245 mm.\",\"thumbnailUrl\":\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/preview_images\/c7b89159b5114f85a460d56da5f07305.thumbnail.0000000000.jpg\",\"uploadDate\":\"2026-09-30\",\"contentUrl\":\"https:\/\/cdn.shopify.com\/videos\/c\/vp\/c7b89159b5114f85a460d56da5f07305\/c7b89159b5114f85a460d56da5f07305.HD-720p-2.1Mbps-96018304.mp4\",\"embedUrl\":\"https:\/\/spaudio.it\/products\/sp-8act-1-active-8-subwoofer-2-passive-8-subwoofer\",\"publisher\":{\"@type\":\"Organization\",\"name\":\"SP Audio - Audiocar Import \u0026 Export SRLS\"},\"duration\":\"PT30S\",\"inLanguage\":\"en\"}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"spaudio","offers":[{"title":"Default Title","offer_id":53302928277847,"sku":"80800","price":261.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/SP-8ACT.webp?v=1776149514","url":"https:\/\/spaudio.it\/ar\/products\/sp-8act-1-active-8-subwoofer-2-passive-8-subwoofer","provider":"spaudio","version":"1.0","type":"link"}