Hertz DCX 130.3 Review: A 5-Inch Coaxial for Rear Doors and Small Front Doors
Updated: Oct 7
The Hertz DCX 130.3 is a 5-inch (130 mm) two-way coaxial speaker from the Dieci range, pairing a water-repellent paper woofer with a 15 mm neodymium PEI-dome tweeter. Hertz rates it at 40 W continuous (80 W peak) into 4 Ω, with 93 dB sensitivity and a 65 Hz to 21 kHz response. The India MRP is ₹7,990, a step below the 6.5-inch DCX 165.3 in our Dieci range. It is aimed at cars with 5-inch openings, typically in the rear doors, though some smaller cars use the size up front too. Today's price is on our Hertz DCX 130.3 product page.
Quick summary
A 5-inch two-way coaxial with a 15 mm PEI-dome tweeter and built-in crossover, wired like a factory speaker.
93 dB sensitivity makes it a natural fit for head-unit rear channels.
Its 40 W continuous rating is lower than many amplifiers' output, so gains need care if you add one.
One top-rated UK review with no written comment; otherwise, owner feedback is missing.
Hertz DCX 130.3 specifications
Specification | Hertz DCX 130.3 |
|---|---|
Type | 5-inch (130 mm) two-way coaxial |
Tweeter | 15 mm PEI dome, neodymium magnet |
Power handling | 40 W continuous, 80 W peak |
Impedance | 4 Ω (Re 3.3 Ω) |
Sensitivity | 93 dB |
Frequency response | 65 Hz – 21 kHz |
Woofer cone and surround | Water-repellent pressed paper; TPU |
Voice coil and magnet | 25 mm; ferrite, 70 x 32 x 15 mm |
Xmax | 2 mm |
Fs / Qts / Vas | 82 Hz / 0.76 / 7 litres |
Weight | 0.56 kg |
India MRP | ₹7,990 |
Figures come from Hertz's official DCX 130.3 page and match our listing. Dimensions are printed only as lettered figures (130, 116, 59 and 52 mm, plus 151 mm) without a legend, so check your opening and screw holes before ordering.
Where a 5-inch coaxial earns its keep
In many cars, the 5-inch speakers sit in the rear doors. Their job there is fill: making the music sound complete for passengers and adding a little ambience behind the driver, without drawing the sound backwards. If your family spends long trips in the back seat, those speakers matter more than they would in a car usually driven solo. A clean, efficient coaxial is exactly the right tool, and there's no need for tweeter holes or extra wiring.
The DCX 130.3's woofer resonates at 82 Hz and is rated down to 65 Hz, so it is not built for deep bass. Let the front doors and, ideally, a subwoofer carry the low end. What the small cone and 15 mm PEI dome are suited to is vocals and detail at modest volume.
Some smaller cars use 5-inch openings in the front doors as well. There, a coaxial keeps the tweeter low in the door, aimed at your knees. If you can mount tweeters higher up, the Hertz DSK 130.3 component set (₹10,990 MRP) uses a 24 mm tweeter that can sit on the dash or A-pillar.
Head unit first, amplifier with care
With 93 dB sensitivity, the DCX 130.3 plays at a sensible level from a head unit, and for rear fill that is often all it needs. If you do add a four-channel amplifier, note that its 40 W continuous rating is lower than many amplifiers deliver. The Dieci Hertz DP 4.300, for example, makes 60 W per channel into 4 Ω. That pairing can work, but set the rear gains carefully with a test tone, use the high-pass filter at around 100 Hz so the small woofers aren't asked for bass, and remember the rear channels should run quieter than the front anyway.
What owners and reviewers say about the Hertz DCX 130.3
There is very little to report when we checked in October 2026. Four Car Audio, a UK Hertz dealer, shows a single review from February 2021. It gives the top score but carries no written comment, so it doesn't say which car, which position or what it replaced. One score isn't a verdict, so treat it as a lone data point. The retailer's Hertz-supplied description, calling it very efficient and suitable for any source, is promotional.
For a broader picture of the Dieci coaxials, the 6.5-inch DCX 165.3 has five reviews at the same dealer, none negative; that covers the larger model, not this one. If you own a pair of DCX 130.3s, we'd welcome your feedback.
DCX 130.3 vs JL C1-525x and Alpine S2-S50
Two other 5-inch-class coaxials in our range cost more. The JL Audio C1-525x (₹13,490 MRP) is a 5.25-inch design with a 19 mm aluminium-dome tweeter, rated at 50 W RMS, and JL publishes a 119 mm cutout and 62 mm mounting depth, which makes fitment easier to confirm. The Alpine S2-S50 (₹11,999 MRP) is rated at 55 W RMS and quotes Hi-Res extension to 40 kHz; its grille is optional.
Both have higher continuous ratings than the DCX 130.3's 40 W, which matters if an amplifier is part of the plan. For head-unit rear fill, the Hertz does the job for roughly ₹4,000 to ₹5,500 less, and if your openings can take a 6.5-inch speaker, the DCX 165.3 adds 20 W of handling for ₹1,000 more.
Who should buy it, and who shouldn't
Buy the DCX 130.3 if you're replacing 5-inch rear-door speakers, or front ones in a small car, and will run them from the head unit or a modest amplifier set with care.
Look elsewhere if you plan a high-powered system, where a speaker with a higher continuous rating is safer, or want a raised soundstage up front, where the DSK 130.3 component set does better.
Installation notes for Indian cars
Sizes around 5 inches are often labelled loosely, and screw-hole patterns vary, so remove the factory speaker and compare before ordering, or ask us to check fitment for your car. Many factory 5-inch speakers sit in plastic brackets, and an adapter ring may be needed. Check window clearance with the glass fully down, and keep the factory water barrier in place, because rear doors take in monsoon water too. A little damping around the opening helps a small woofer; our sound damping guide explains the basics. VA3 Car Studio in Ghaziabad offers professional installation.
Price and where to buy
The Hertz DCX 130.3 carries an India MRP of ₹7,990 for the pair. Check the current price on our DCX 130.3 product page. Every pair we sell is a genuine Hertz product.
The bottom line
The DCX 130.3 is a sensible, efficient 5-inch coaxial for rear doors and small front doors. It is happiest on head-unit power or a carefully set amplifier, and leaves deep bass to bigger speakers. Owner feedback is almost non-existent, so buy it for its specification and its fit, and confirm the opening first.
Hertz DCX 130.3 FAQ
Is the Hertz DCX 130.3 a 5-inch or 5.25-inch speaker?
Hertz describes it as 130 mm, or 5 inches. Size labels in this class vary between brands and cars, so compare the factory speaker's opening and screw holes, or ask us to check your car.
Can I use the DCX 130.3 in the rear doors with component speakers up front?
Yes. That is a common layout. Pair it with a front set such as the DSK 165.3 or DSK 130.3, and set the fader so the front speakers lead and the rear adds fill.
Can the DCX 130.3 run from a 60 W amplifier?
It can, with care. Its continuous rating is 40 W, so set the gains with a test tone, use a high-pass filter around 100 Hz, and keep the rear level below the front.
Buy the Hertz DCX 130.3 Dieci in India
Check the Hertz DCX 130.3 Dieci price in India, browse more Hertz speakers or compare all coaxial speakers in India. Want it fitted properly? Book a speaker upgrade at our Ghaziabad studio.
Comments