Hertz DBA 201 8-Inch Active Subwoofer Box With 440W Peak
If you want serious bass without giving up your boot space, the Hertz DBA 201 is built for exactly that. This compact 8-inch active subwoofer box packs a 440W peak Class D amplifier, dual passive radiators, and a full suite of tuning controls into a sleek MDF enclosure — so you get deep, controlled bass that fits neatly into your car without a complicated install.
What is the Hertz DBA 201?
The Hertz DBA 201 is a self-contained active subwoofer system — meaning the amplifier is already built in. The 8-inch (200mm) driver sits inside a double passive radiator enclosure that was engineered using FEM (Finite Element Method) simulation to squeeze every bit of performance out of the compact cabinet. The result is a subwoofer that hits hard, stays accurate, and doesn't need a separate amp or enclosure to do its job.
Why Choose the Hertz DBA 201?
- ✅ All-in-one design — amplifier, driver, and enclosure in a single unit
- ✅ 440W peak power — genuine Hertz performance, not inflated numbers
- ✅ Dual passive radiators — extend bass response without a ported box
- ✅ Plug & Play — works with virtually any factory or aftermarket head unit
- ✅ Auto turn-on — powers up when it detects audio signal, no remote wire needed
- ✅ Full tuning controls — crossover, bass boost, phase, and subsonic filter on board
- ✅ Compact and stylish — fits where traditional subwoofer setups simply won't
Key Features
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8-inch (200mm) driver — large enough for impactful bass, compact enough for tight spaces
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440W peak / 220W continuous power — built-in Class D amplifier handles it all
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0.4 Ohm impedance — optimised for maximum efficiency from the internal amp
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Double passive radiator enclosure — solid MDF cabinet tuned with FEM simulation
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High Density Flux Ferrite magnet — 115 x 47 x 25mm, delivers strong motor force
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38.6mm (1.52-inch) copper voice coil — handles heat and excursion with ease
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Pressed paper cone — lightweight and stiff for accurate bass reproduction
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Frequency response: 32–400 Hz — covers the full bass and upper-bass range
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Weight: 6.7 kg (10.54 lb) — solid build without being unwieldy
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Provided remote level control — adjust bass from the driver's seat
Advanced Technologies
FEM-Optimised Double Passive Radiator Enclosure
Hertz used Finite Element Method (FEM) simulation to design the DBA 201's enclosure. This engineering process models how sound waves behave inside the cabinet and fine-tunes the passive radiator tuning to maximise bass output and minimise distortion — something you simply can't achieve by guesswork. The result is a box that performs well beyond what its size suggests.
24 dB/Oct Low-Pass Crossover with Variable Frequency
The built-in crossover lets you set the cut-off point anywhere between 50 Hz and 150 Hz. This means you can blend the DBA 201 seamlessly with your existing speakers — whether you're running a factory system or a full aftermarket setup. The steep 24 dB/Oct slope keeps unwanted mid-range frequencies out of the subwoofer, keeping the bass clean and focused.
Adjustable Bass Boost (0–6 dB @ 45 Hz)
Many factory car audio systems apply a mid-bass cut to protect small speakers. The DBA 201's bass boost lets you add up to 6 dB at 45 Hz to compensate for this, restoring the low-end punch that OEM systems often strip away.
Phase Inverter (0–180°)
Where you place a subwoofer in a car affects how its sound waves interact with your main speakers. The phase control lets you align the DBA 201 with your speaker system regardless of its position — eliminating bass cancellation and ensuring everything works together.
Subsonic Filter (15 Hz @ 24 dB/Oct)
Frequencies below 15 Hz are inaudible but can push a driver beyond its mechanical limits, causing damage. The subsonic filter blocks these ultra-low frequencies, protecting the cone from over-excursion and keeping the amplifier from overheating during extended use.
Audio Sense Auto Turn-On
The DBA 201 detects the audio signal from your head unit and powers on automatically — no remote turn-on wire required. When the music stops, it times out to standby mode on its own. If you do have a remote wire available, you can switch the audio sense off and use that instead.
Benefits
- 🔊 Deep, accurate bass that fills your car without overwhelming it
- 🚗 Compact enough to fit in hatchbacks, sedans, and SUVs without losing boot space
- 🔧 Simple installation — no separate amp, no separate box to build or buy
- 🎛️ Fine-tune the sound to match your exact car and speaker setup
- ⚡ Class D efficiency means less heat and less drain on your car's electrical system
- 🛡️ Subsonic protection keeps the driver safe during long listening sessions
- 📱 Remote level control lets you adjust bass on the fly from the driver's seat
Who Should Buy the Hertz DBA 201?
- Drivers who want a significant bass upgrade without a complex multi-component install
- Car audio enthusiasts upgrading from a factory system who need a clean, powerful foundation
- Anyone with limited boot space who still wants genuine subwoofer performance
- Owners of hatchbacks, sedans, or compact SUVs where space is at a premium
- Those who want a plug-and-play solution that still offers professional-grade tuning options
Technical Specifications
| Specification |
Value |
| Driver Size |
200mm (8 inches) |
| Design |
Active subwoofer box with double passive radiators |
| Peak Power Handling |
440W |
| Continuous Power Handling |
220W |
| Impedance |
0.4 Ohm |
| Frequency Response |
32–400 Hz |
| Voice Coil Diameter |
38.6mm (1.52 inches) |
| Voice Coil Type |
Copper |
| Magnet Type |
High Density Flux Ferrite |
| Magnet Size (D x d x h) |
115 x 47 x 25mm (4.5 x 1.8 x 0.98 inches) |
| Cone Material |
Pressed Paper |
| Enclosure Material |
Solid MDF |
| Low-Pass Crossover |
24 dB/Oct, variable 50–150 Hz |
| Bass Boost |
0–6 dB @ 45 Hz |
| Phase Inverter |
0–180° |
| Subsonic Filter |
15 Hz @ 24 dB/Oct |
| Turn-On Method |
Audio sense (auto) or remote wire |
| Weight |
6.7 kg (10.54 lb) |
| Amplifier Class |
Class D |
| Remote Level Control |
Included |
Why Choose Dolphin Accessories?
- ✅ 100% Genuine Products — every item we sell is sourced directly from authorised distributors
- ✅ Expert Guidance — our team knows car audio and can help you choose the right setup
- ✅ Pan-India Delivery — we ship to every corner of the country, quickly and reliably
- ✅ Secure Packaging — your order is packed to arrive in perfect condition
- ✅ After-Sales Support — we're here after the purchase, not just before it
- ✅ Trusted by Enthusiasts — thousands of car audio fans across India shop with us
Frequently Asked Questions
Q: Does the Hertz DBA 201 need a separate amplifier?
A: No. The DBA 201 is an active subwoofer — the amplifier is built right into the unit. Just connect it to your head unit's RCA output or speaker-level input and you're ready to go.
Q: What size is the Hertz DBA 201?
A: It uses an 8-inch (200mm) driver housed in a compact MDF enclosure. The overall box dimensions are not listed in the spec sheet, so we recommend checking the product images or contacting us for exact measurements before purchase.
Q: How much power does the Hertz DBA 201 produce?
A: It delivers 220W of continuous (RMS) power and 440W at peak. The built-in Class D amplifier handles all of this efficiently.
Q: Will the DBA 201 work with my factory head unit?
A: Yes. The DBA 201 is designed to be compatible with virtually any car audio system, including factory head units. The input sensitivity control lets you match it to low or high output sources.
Q: Do I need a remote turn-on wire to install the DBA 201?
A: No. The audio sense circuit detects the music signal and turns the unit on automatically. If you do have a remote wire available, you can use that instead by switching off the audio sense function.
Q: What is a passive radiator and why does the DBA 201 use two of them?
A: A passive radiator is a driver without a voice coil — it moves in response to air pressure inside the enclosure, extending bass response without the port noise of a traditional ported box. The DBA 201 uses two of them to maximise output from its compact cabinet.
Q: What does the phase inverter do on the DBA 201?
A: The phase control (0–180°) lets you align the subwoofer's output with your main speakers. Depending on where the DBA 201 is placed in your car, adjusting the phase can eliminate bass cancellation and make the whole system sound more cohesive.
Q: What is the subsonic filter on the Hertz DBA 201?
A: The subsonic filter cuts frequencies below 15 Hz at a steep 24 dB/Oct slope. These ultra-low frequencies are inaudible but can damage the driver by pushing it beyond its mechanical limits. The filter keeps the subwoofer safe during heavy use.
Q: Can I adjust the bass level from inside the car?
A: Yes. The DBA 201 comes with a remote level control that mounts within reach of the driver, so you can turn the bass up or down without touching the subwoofer itself.
Q: What is the impedance of the Hertz DBA 201?
A: The driver has a 0.4 Ohm impedance, which is optimised to work with the built-in amplifier for maximum efficiency.
Q: Is the Hertz DBA 201 suitable for a hatchback or small car?
A: Absolutely. The compact enclosure design is specifically intended for vehicles where boot space is limited. It's a popular choice for hatchbacks, sedans, and compact SUVs.
Q: Is the Hertz DBA 201 available with warranty support in India?
A: Yes. Dolphin Accessories supplies 100% genuine Hertz products sourced from authorised distributors. Please contact us directly for warranty terms and after-sales support.
