.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}} SUPER POWER AUDIODESIGNED IN ITALYMMXXVI compression driver · without horn · 112 dB · single unit400 watt RMS.The driver alone. A compression driver sold without the horn: 112 dB sensitivity, a 51.6 mm / 2" voice coil and 400 W RMS on a 25 mm (1") throat. Usable range 600 Hz – 20 kHz. Sold as a single unit, horn not included. 400WRMS · 4 Ω 800WMAX · PEAK 112dBSENSITIVITY 🔒 Secure checkout · SSL & PCI DSS↩ 14 days to change your mind (EU)✓ Invoice from an Italian company✓ Data from the factory manual ✓ ITALIAN DESIGN✓ 4 OHM✓ 1" THROAT✓ HORN NOT INCLUDED✓ UNIT PRICE 01Power, measured not promised RMS · 4 Ω400 W MAX · PEAK800 W PER DRIVER · RMS IS CONTINUOUS POWER, NOT BURST · NOMINAL 4 Ω 02Why this driver 112 dB: a few watts go a long waySensitivity is what makes a horn system loud. At 112 dB this driver sits above the midrange without asking for huge power. 51.6 mm / 2" voice coil, CCAW wireThe coil measures 51.6 mm / 2" and is wound in CCAW (aluminium). That is the part that turns 400 W RMS into pressure and then has to survive it. 25 mm (1") throat, your hornThe throat is a standard 25 mm (1"). You choose the horn: flare, dispersion and look are your decision, not ours. 600 Hz – 20 kHz, 34 oz magnetRated from 600 Hz to 20 kHz on a 34 oz magnet assembly. A wide usable band for a front stage or an SPL wall. “Continuous RMS only. No peak, no burst, no marketing watts.” 03Look at it closely 01 · the throatThe 25 mm (1") throat, where your horn screws on. The horn is not included with this driver. 02 · the bodyBehind the flange: a 34 oz magnet assembly and a 51.6 mm / 2" voice coil wound in CCAW. Overall 134 mm (5.2") across, 82 mm (3.2") deep. Free shippingWarranty on manufacturing defectsFree technical support from Italy FACTORY MANUAL & SPECIFICATION SHEET Full specifications and mounting data, straight from the factory sheet. ⇩ Open the manual (PDF)English · 2026 · opens in a new tab 04What you receive One driver only. The horn is not in the box.The price on this page is for one piece: the compression driver alone, with its 25 mm (1") threaded throat. Packed in the SP Audio box. In the box: 1 × SP DRIVER 50 compression driver · SP Audio packaging.Not included: the horn — this driver is sold without it — plus crossovers, capacitors, speaker cable and brackets, chosen for your car. 05Technical specifications POWER & LOAD Rated power (RMS) 400 W Peak power (MAX) 800 W Minimum impedance 4 ohm ACOUSTIC Sensitivity 112 dB Frequency range 600 Hz – 20 kHz Throat diameter 25 mm (1") MOTOR & MATERIALS Voice coil diameter 51.6 mm / 2" Winding material CCAW (aluminium) Magnet 34 oz DIMENSIONS & PACKAGING Overall diameter 134 mm (5.2") Depth 82 mm (3.2") Net weight 3 kg Shipping weight (1 pc) 3.5 kg Shipping box (1 pc) 14.5 × 14.5 × 9.5 cm Sold as Single unit · horn not included MANUFACTURER’S LABORATORY DATA · PEAK OR “BURST” FIGURES USED IN SOME MARKETS ARE NOT RMS AND ARE NOT LISTED 06Complete the system HORN · TO MOUNT ON THE DRIVERSPTW-35s HORNHORN · TO MOUNT ON THE DRIVERSP-HORN 20HORN · TO MOUNT ON THE DRIVERSP-HORN 50COMPRESSION DRIVER · WITHOUT HORNSP DRIVER 44 — 250 W RMS 07Before you install it It always needs a crossover. Never full range. A compression driver wired straight to the amplifier does not survive. Use a crossover, or at the very least a capacitor in series. Do not cross below 600 Hz. 600 Hz is the lowest frequency this driver is rated for. Going under it, at any power, is the fastest way to tear the diaphragm. Do not go below 4 ohm per channel. 4 ohm is the minimum load. Two drivers in parallel on one channel give 2 ohm: most amplifiers will heat up or go into protection. Add a horn before you play it. This driver ships without one. Mount it on a 25 mm (1") horn, aim it at the listener, then bring the gain up slowly. Clipping kills compression drivers far more often than power does. 08Questions installers ask How much power does the SP DRIVER 50 handle?400 W RMS continuous and 800 W peak. The price on this page is for one piece. Is the horn included?No. This driver is sold without the horn. You mount it on a 25 mm (1") horn of your choice. Do I need a crossover?Yes, always — a crossover or at minimum a capacitor in series. And never cross below 600 Hz. How big is the throat?25 mm (1"). One or two?One. The price on this page is for a single piece. Free technical support from Italy. 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, front stage or SPL wall — and we will help you match [email protected] · +39 340 807 8778 Accepted payment methodsVisa · Mastercard · Maestro · American Express · PayPal · Apple Pay · Google Pay · Shop Pay · Klarna SP Audio — Super Power Audio. Designed in Italy by Audiocar Import & Export SRLS, Milano, official SP Audio distributor for Europe. {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"How much power does the SP DRIVER 50 handle?","acceptedAnswer":{"@type":"Answer","text":"400 W RMS continuous and 800 W peak. The price on this page is for one piece."}},{"@type":"Question","name":"Is the horn included?","acceptedAnswer":{"@type":"Answer","text":"No. This driver is sold without the horn. You mount it on a 25 mm (1\") horn of your choice."}},{"@type":"Question","name":"Do I need a crossover?","acceptedAnswer":{"@type":"Answer","text":"Yes, always — a crossover or at minimum a capacitor in series. And never cross below 600 Hz."}},{"@type":"Question","name":"How big is the throat?","acceptedAnswer":{"@type":"Answer","text":"25 mm (1\")."}},{"@type":"Question","name":"One or two?","acceptedAnswer":{"@type":"Answer","text":"One. The price on this page is for a single piece."}}]}
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