{"product_id":"sptw-28-100-watt-rms","title":"SP TW 28 Bullet Tweeter 100W RMS (Pair)","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 .rea{padding-left:22px;padding-right:22px}.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}.sp4 .pnl{padding:4px 22px 0}.sp4 .pnl figure{margin:0 0 14px;background:#131313;border:1px solid #232323;border-radius:9px;padding:12px}.sp4 .pnl figcaption{font-size:10.5px;letter-spacing:1.4px;color:#9d9d9d;text-transform:uppercase;padding:10px 2px 0;text-align:center;line-height:1.7}.sp4 .pnl figcaption b{color:#fff;display:block;font-size:12px;letter-spacing:2px;margin-bottom:4px}@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 .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}}\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\"\u003ebullet tweeter · 110 dB · 1\" throat · pair\u003c\/span\u003e\n\u003ch2 class=\"big d\"\u003e110 dB.\u003cbr\u003e\u003cem\u003eHighs you hear over the engine.\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"sub\"\u003eA bullet tweeter built for SPL: 1\" throat, 32.4 mm voice coil, 8 Oz magnet, 150 W RMS. At 110 dB it cuts through a loud system without being pushed. 95 mm across, 47 mm deep. Sold as a pair.\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\/spaudio-sp-tw-28-poster-2026.jpg?width=760\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/spaudio-sp-tw-28-poster-2026.jpg?width=440 440w, https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/spaudio-sp-tw-28-poster-2026.jpg?width=620 620w, https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/spaudio-sp-tw-28-poster-2026.jpg?width=900 900w\" sizes=\"(min-width:1000px) 900px, 100vw\" alt=\"SP TW 28 bullet tweeter, 110 dB, 4 ohm\" width=\"760\" height=\"950\" loading=\"eager\" 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\u003e150\u003ci\u003eW\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eRMS · 4 Ω\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e300\u003ci\u003eW\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eMAX · PEAK\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e110\u003ci\u003edB\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eSPL 1W\/1M\u003c\/span\u003e\n\u003c\/div\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\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e Data from the 2026 factory manual\u003c\/span\u003e\n\u003c\/div\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 4 OHM\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e PAIR PRICE\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e 110 dB SPL\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e FREE SUPPORT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e01\u003c\/u\u003e\n\u003ch3\u003ePower, measured not promised\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar\"\u003e\n\u003cspan\u003eRMS · 4 Ω\u003c\/span\u003e\n\u003cdiv class=\"trk\"\u003e\n\u003cdiv class=\"fil\" style=\"width: 50%;\"\u003e150 W\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar\"\u003e\n\u003cspan\u003eMAX · PEAK\u003c\/span\u003e\n\u003cdiv class=\"trk\"\u003e\n\u003cdiv class=\"fil mx\" style=\"width: 100%;\"\u003e300 W\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"foot\"\u003ePER TWEETER · RMS IS CONTINUOUS POWER, NOT BURST · 4 Ω NOMINAL · ALWAYS DRIVEN THROUGH A CROSSOVER\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e02\u003c\/u\u003e\n\u003ch3\u003eWhy this tweeter\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cards\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003e110 dB changes the whole balance\u003c\/b\u003e\n\u003cp\u003eA bullet is a horn: the throat concentrates the energy instead of spreading it. At 110 dB it needs a fraction of the power a dome needs for the same level.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003e32.4 mm of voice coil\u003c\/b\u003e\n\u003cp\u003e1.27\" \/ 32.4 mm wound with CCAW aluminium wire. A big coil is why this one takes 150 W RMS and keeps going.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eAn 8 Oz magnet behind it\u003c\/b\u003e\n\u003cp\u003eThe motor is what turns watts into movement. Eight ounces on a tweeter this size means control, not just loudness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eSmall enough to place anywhere\u003c\/b\u003e\n\u003cp\u003e95 mm across, 47 mm deep, half a kilo. It goes on the A-pillar, on the dash or on a kick panel, aimed where you want it.\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=\"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\"\u003eFACTORY MANUAL \u0026amp; SPECIFICATION SHEET\u003c\/div\u003e\n\u003cp\u003eFull specifications and mounting data, straight from the 2026 factory sheet.\u003c\/p\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/SPAUDIO-SPTW-28-Manual-EN-2026.pdf?v=1790436435\" 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\"\u003eEnglish · 2026 edition · opens in a new tab\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e03\u003c\/u\u003e\n\u003ch3\u003eWhat you receive\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cw\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eTwo tweeters, not one.\u003c\/b\u003e\n\u003cp\u003eThe price on this page is for a pair: left and right, from the same production batch, so the two sides of the car match. Packed in the SP Audio box.\u003c\/p\u003e\n\u003cp class=\"sm\"\u003e\u003cb\u003eIn the box:\u003c\/b\u003e 2 × SP TW 28 bullet tweeter · SP Audio packaging.\u003cbr\u003e\u003cb\u003eNot included:\u003c\/b\u003e crossovers or series capacitors, speaker cable and mounting hardware for your car — a tweeter must never be connected without a filter, see section 07.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e04\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\"\u003ePOWER \u0026amp; LOAD\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated power (RMS)\u003c\/td\u003e\n\u003ctd\u003e150 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak power (MAX)\u003c\/td\u003e\n\u003ctd\u003e300 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated impedance\u003c\/td\u003e\n\u003ctd\u003e4 ohm\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\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e110 dB SPL 1W\/1M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpper frequency limit\u003c\/td\u003e\n\u003ctd\u003e25 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThroat diameter\u003c\/td\u003e\n\u003ctd\u003e25 mm (1\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eMOTOR \u0026amp; MATERIALS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice coil diameter\u003c\/td\u003e\n\u003ctd\u003e32.4 mm \/ 1.27\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWinding material\u003c\/td\u003e\n\u003ctd\u003eCCAW (aluminium)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnet\u003c\/td\u003e\n\u003ctd\u003e8 Oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eDIMENSIONS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall diameter\u003c\/td\u003e\n\u003ctd\u003e95 mm (3.7\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e47 mm (1.8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSold as\u003c\/td\u003e\n\u003ctd\u003ePair (2 pieces)\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 · PEAK OR “BURST” FIGURES USED IN SOME MARKETS ARE NOT RMS AND ARE NOT LISTED\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e05\u003c\/u\u003e\n\u003ch3\u003eComplete the system\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pair\"\u003e\n\u003ca href=\"\/id\/products\/sp-6-5cm\"\u003e\u003csmall\u003eMIDRANGE 6.5\" \/ 16.5 CM\u003c\/small\u003e\u003cstrong\u003eSP 6.5CM — 120 W RMS\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/id\/products\/sp-8cm-150-watt-rms\"\u003e\u003csmall\u003eMIDRANGE 8\" \/ 20 CM\u003c\/small\u003e\u003cstrong\u003eSP 8CM — 150 W RMS\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/id\/products\/sptw-18-100-watt-rms\"\u003e\u003csmall\u003e38 MM DOME TWEETER\u003c\/small\u003e\u003cstrong\u003eSP TW 18\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/id\/products\/sp-1500-1-mini-amplifier\"\u003e\u003csmall\u003eMONO AMPLIFIER\u003c\/small\u003e\u003cstrong\u003eSP-1500.1 MINI\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e06\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\u003eNever connect a tweeter without a filter.\u003c\/b\u003e A crossover, or at the very least a capacitor in series: full range straight from the amplifier will destroy the voice coil in seconds. This is not optional.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCross it high and check the manual.\u003c\/b\u003e A horn tweeter is meant for the top of the band only. Use the minimum crossover frequency printed in the factory sheet and never go below it — and if you are not sure, write to us before you power it up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKeep 4 ohm per channel.\u003c\/b\u003e Two tweeters in parallel on one channel give 2 ohm: most amplifiers heat up or go into protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e110 dB means you need less gain, not more.\u003c\/b\u003e A bullet this efficient will be louder than the rest of the system: attenuate it, aim it slightly off-axis, and stop before the amplifier clips. Clipping kills tweeters, power rarely does.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e07\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\u003eHow much power does the SP TW 28 handle?\u003c\/b\u003e150 W RMS continuous and 300 W peak, per tweeter. The price on this page is for a pair.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eDo I really need a crossover?\u003c\/b\u003eYes. A tweeter must always run behind a crossover or at least a series capacitor. Sending it full range is the single fastest way to burn it.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhy is a bullet so much louder?\u003c\/b\u003eBecause the horn concentrates the energy. 110 dB against about 90 dB for a normal dome is roughly a hundred times less power for the same level.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eHow big is it?\u003c\/b\u003e95 mm overall diameter, 47 mm deep, 0.5 kg. The throat is 1\" \/ 25 mm.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat amplifier does it need?\u003c\/b\u003e4 ohm nominal. With 110 dB even a small channel drives it: the usual mistake is giving it too much, not too little.\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 — power, crossover points, doors or A-pillars — 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\":\"How much power does the SP TW 28 bullet tweeter handle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"150 W RMS continuous and 300 W peak, per tweeter. The price on the product page is for a pair.\"}},{\"@type\":\"Question\",\"name\":\"Does the SP TW 28 need a crossover?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. A tweeter must always run behind a crossover or at least a capacitor in series. Sending it full range from the amplifier will destroy the voice coil.\"}},{\"@type\":\"Question\",\"name\":\"How sensitive is the SP TW 28?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"110 dB SPL at 1W\/1M. The horn concentrates the energy, so it needs far less power than a dome tweeter for the same level.\"}},{\"@type\":\"Question\",\"name\":\"What are the dimensions of the SP TW 28?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"95 mm overall diameter, 47 mm deep, 0.5 kg net weight, with a 1 inch \/ 25 mm throat.\"}},{\"@type\":\"Question\",\"name\":\"What amplifier does the SP TW 28 need?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"4 ohm nominal. With 110 dB sensitivity even a small channel drives it easily.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"SP Audio","offers":[{"title":"Default Title","offer_id":42856235204820,"sku":"4","price":29.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/1_adefab9c-23dd-4d51-bf40-6d71661fb1d5.webp?v=1773054544","url":"https:\/\/spaudio.it\/id\/products\/sptw-28-100-watt-rms","provider":"spaudio","version":"1.0","type":"link"}