{"product_id":"hertz-cba-250-active-sealed-subwoofer","title":"Hertz CBA 250 Active Sealed Subwoofer 10 Inch | 500W Peak","description":"\u003ch2\u003eHertz CBA 250 Active Sealed Subwoofer 10 Inch | 500W Peak\u003c\/h2\u003e\n\u003cp\u003eIf you want serious bass without gutting your entire boot space, the Hertz CBA 250 is built exactly for that. It packs a 10-inch high-excursion driver and a dedicated amplification module into one ultra-slim sealed enclosure — just 158 mm deep — so you get clean, powerful low-end that actually fits your car.\u003c\/p\u003e\n\u003ch3\u003eWhat is this Product?\u003c\/h3\u003e\n\u003cp\u003eThe Hertz CBA 250 is a complete active subwoofer system — driver, enclosure, and amplifier all in one box. Unlike passive subwoofers that need a separate amp, the CBA 250 is self-contained and ready to connect directly to your car's existing audio system or an aftermarket head unit. It is part of Hertz's Compact Bass Active (CBA) series, designed for drivers who want premium Italian-engineered bass in a practical, space-saving format.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Product?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ All-in-one active system — no separate amplifier needed\u003c\/li\u003e\n\u003cli\u003e✅ Ultra-slim 158 mm (6.22 in.) profile fits most car trunks easily\u003c\/li\u003e\n\u003cli\u003e✅ Works with OEM factory audio systems via high-level speaker input\u003c\/li\u003e\n\u003cli\u003e✅ 90% amplifier efficiency — runs cool, wastes less power\u003c\/li\u003e\n\u003cli\u003e✅ Plug \u0026amp; Play SSP connector for quick, clean installation\u003c\/li\u003e\n\u003cli\u003e✅ Rounded corners reduce enclosure resonance and protect your boot lining\u003c\/li\u003e\n\u003cli\u003e✅ HRC AP remote control and metal grille included in the box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-inch (250 mm) driver\u003c\/strong\u003e — large enough for deep, room-filling bass, compact enough for real-world fitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e250W RMS \/ 500W Peak power\u003c\/strong\u003e — plenty of headroom for dynamic music without distortion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.4 Ohm impedance\u003c\/strong\u003e — high-impedance design that works efficiently with the integrated he-li amplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable low-pass filter (50–200 Hz) at 12dB\/Oct.\u003c\/strong\u003e — dial in exactly where the sub takes over from your main speakers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable bass-boost (0–6 dB at 45 Hz)\u003c\/strong\u003e — add warmth and punch to the lowest frequencies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase control (0–180°)\u003c\/strong\u003e — align the sub's output with your front speakers for a seamless soundstage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubsonic filter\u003c\/strong\u003e — protects the driver from damaging ultra-low frequencies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-level speaker input\u003c\/strong\u003e — connects directly to factory speaker wires, no RCA outputs required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-level RCA input\u003c\/strong\u003e — for aftermarket head units with dedicated sub outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eART (Automatic Remote Turn-On)\u003c\/strong\u003e — auto power-on via remote wire, high-level signal, or audio signal detection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDown-firing design with Velcro feet\u003c\/strong\u003e — stays put on carpet, easy to remove when needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDefeatable filter\u003c\/strong\u003e — bypass the onboard filter when using an external processor with a dedicated sub pre-out\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdvanced Technologies\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ehe-li Technology (High Efficiency \/ Low Impedance):\u003c\/strong\u003e The amplification module inside the CBA 250 uses Hertz's proprietary he-li design, which eliminates the need for a DC-DC voltage booster. This allows the Class-D amplifier to reach up to 90% efficiency — very close to the theoretical maximum. In practical terms, that means less heat, less drain on your car's electrical system, and more of your battery's power going directly into producing bass.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2S² Design (2 Sides \/ 2 Sounds):\u003c\/strong\u003e The enclosure is engineered with Hertz's 2S² philosophy, which optimises the internal volume and port geometry so the sealed box performs consistently across different listening levels. You get tight, accurate bass at low volumes and controlled, powerful output when you push it harder.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSSP (Sub Smart Plug) Terminal Block:\u003c\/strong\u003e The Plug \u0026amp; Play multi-pole connector simplifies installation significantly. All signal inputs, power connections, and control wires come together in one tidy connector block. If you ever need to remove the subwoofer — to access the spare tyre, for example — you can disconnect it cleanly in seconds without disturbing any wiring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWide Linear Excursion Cone Design:\u003c\/strong\u003e The cone, dust-cap, and basket geometry are engineered together to achieve 9 mm of linear excursion in one direction while keeping the overall assembly depth to a minimum. This means the driver can move a lot of air — producing deep, impactful bass — without needing a large enclosure to do it.\u003c\/p\u003e\n\u003ch3\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e🔊 Deep, accurate bass that complements your existing speakers without overpowering them\u003c\/li\u003e\n\u003cli\u003e🚗 Fits neatly in most car boots without sacrificing luggage space\u003c\/li\u003e\n\u003cli\u003e⚡ Efficient amplification keeps your alternator and battery happy on long drives\u003c\/li\u003e\n\u003cli\u003e🔌 Simple installation — works with factory wiring, no head unit upgrade required\u003c\/li\u003e\n\u003cli\u003e🎛️ Full tuning control so you can match the sub to any music genre\u003c\/li\u003e\n\u003cli\u003e🛡️ Metal grille protects the driver from accidental damage\u003c\/li\u003e\n\u003cli\u003e📦 Remote control included for convenient bass level adjustment from the driver's seat\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Buy This Product?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCar owners who want to add bass to a factory audio system without a full system overhaul\u003c\/li\u003e\n\u003cli\u003eEnthusiasts upgrading from a basic aftermarket setup who want a clean, integrated solution\u003c\/li\u003e\n\u003cli\u003eAnyone with limited boot space who still wants genuine subwoofer performance\u003c\/li\u003e\n\u003cli\u003eDrivers who prefer a tidy, professional-looking installation with minimal wiring\u003c\/li\u003e\n\u003cli\u003eMusic lovers who listen to genres where bass presence matters — hip-hop, EDM, rock, or film scores\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eHertz CBA 250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDriver Size\u003c\/td\u003e\n\u003ctd\u003e250 mm (10 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Handling — Continuous (RMS)\u003c\/td\u003e\n\u003ctd\u003e250 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Handling — Peak\u003c\/td\u003e\n\u003ctd\u003e500 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e0.4 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003eActive Sealed Subwoofer Box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil Diameter\u003c\/td\u003e\n\u003ctd\u003e60 mm (2.36 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e20 – 200 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnet Size (D × d × h)\u003c\/td\u003e\n\u003ctd\u003e140 × 70 × 30 mm (5.51 × 2.76 × 1.81 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnet Type\u003c\/td\u003e\n\u003ctd\u003eHigh Density Flux Ferrite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCone Material\u003c\/td\u003e\n\u003ctd\u003ePressed Paper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXmech (Mechanical Excursion)\u003c\/td\u003e\n\u003ctd\u003e14.75 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil Type\u003c\/td\u003e\n\u003ctd\u003eCopper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow-Pass Filter\u003c\/td\u003e\n\u003ctd\u003eButterworth 12 dB\/Oct., variable 50–200 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass Boost\u003c\/td\u003e\n\u003ctd\u003e0–6 dB @ 45 Hz (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase Control\u003c\/td\u003e\n\u003ctd\u003e0° – 180°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Profile Depth\u003c\/td\u003e\n\u003ctd\u003e158 mm (6.22 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier Technology\u003c\/td\u003e\n\u003ctd\u003ehe-li (High Efficiency \/ Low Impedance), Class-D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier Efficiency\u003c\/td\u003e\n\u003ctd\u003eUp to 90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eART Turn-On\u003c\/td\u003e\n\u003ctd\u003eRemote-in \/ Hi-level \/ Audio signal (selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003eHigh-level speaker-in (multi-pin) + Low-level RCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessories Included\u003c\/td\u003e\n\u003ctd\u003eHRC AP Remote Control, Metal Grille, Velcro Feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhy Choose Dolphin Accessories?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003e100% Genuine Products\u003c\/strong\u003e — every item we sell is sourced directly from authorised distributors\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eExpert Guidance\u003c\/strong\u003e — our team understands car audio and can help you choose the right setup\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003ePan-India Delivery\u003c\/strong\u003e — we ship to every corner of the country, quickly and reliably\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSecure Packaging\u003c\/strong\u003e — your order is packed to survive the journey, not just look good on a shelf\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eAfter-Sales Support\u003c\/strong\u003e — we are here after your purchase, not just before it\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eTrusted by Enthusiasts\u003c\/strong\u003e — thousands of car audio fans across India choose Dolphin Accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the Hertz CBA 250 need a separate amplifier?\u003c\/strong\u003e\u003cbr\u003eNo. The CBA 250 is an active subwoofer — the amplifier is built into the enclosure. You just connect it to your car's power and audio source and it is ready to go.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I connect the Hertz CBA 250 to my factory car stereo?\u003c\/strong\u003e\u003cbr\u003eYes. It has a high-level speaker input that connects directly to your existing factory speaker wires, so you do not need an aftermarket head unit or RCA outputs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the power output of the Hertz CBA 250?\u003c\/strong\u003e\u003cbr\u003eIt delivers 250W RMS continuous power and handles up to 500W peak.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How deep is the Hertz CBA 250 enclosure?\u003c\/strong\u003e\u003cbr\u003eThe enclosure has an ultra-low profile of just 158 mm (6.22 inches), making it one of the slimmest active subwoofer boxes in its class.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does he-li technology mean?\u003c\/strong\u003e\u003cbr\u003ehe-li stands for High Efficiency \/ Low Impedance. It is Hertz's amplifier design that removes the DC-DC voltage booster, allowing the Class-D amp to reach up to 90% efficiency — meaning less heat and less drain on your car's battery.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the frequency range of the Hertz CBA 250?\u003c\/strong\u003e\u003cbr\u003eIt covers 20 Hz to 200 Hz, which covers the full subwoofer range from deep rumble to upper bass.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I adjust the bass level from the driver's seat?\u003c\/strong\u003e\u003cbr\u003eYes. The HRC AP remote control is included in the box, so you can adjust the bass level without reaching into the boot.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the ART function on the Hertz CBA 250?\u003c\/strong\u003e\u003cbr\u003eART stands for Automatic Remote Turn-On. It lets the subwoofer power on automatically when it detects a remote wire signal, a high-level audio signal, or an audio input — whichever suits your installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the Hertz CBA 250 suitable for all car types?\u003c\/strong\u003e\u003cbr\u003eIts slim 158 mm profile makes it compatible with most sedans, hatchbacks, SUVs, and MPVs. It is designed to fit in the boot without taking up excessive space.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the Hertz CBA 250 come with a grille?\u003c\/strong\u003e\u003cbr\u003eYes, a sturdy metal grille is included to protect the driver from accidental damage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the impedance of the Hertz CBA 250?\u003c\/strong\u003e\u003cbr\u003eThe driver has a 0.4 Ohm impedance, which is a high-impedance design optimised to work with the integrated he-li amplifier module.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the Hertz CBA 250 available with pan-India delivery?\u003c\/strong\u003e\u003cbr\u003eYes. Dolphin Accessories ships the Hertz CBA 250 across India with secure packaging to ensure it arrives in perfect condition.\u003c\/p\u003e","brand":"Dolphin Accessories","offers":[{"title":"Default Title","offer_id":49164498567396,"sku":null,"price":42490.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/9275\/4404\/files\/Hertz_CBA_250_ACTIVE_SUBWOOFER.png?v=1781596480","url":"https:\/\/dolphinaccessories.com\/products\/hertz-cba-250-active-sealed-subwoofer","provider":"DolphinAccessories ","version":"1.0","type":"link"}