Hertz X 165 Review: Uno's 6.5-Inch Coaxial for Factory Head Units
Updated: Oct 7
The Hertz X 165 is a 6.5-inch (165 mm) two-way coaxial speaker from Hertz's entry-level Uno range, built to replace factory speakers and, Hertz says, to sound good on a factory head unit's power. It pairs a pressed-paper woofer with a 24 mm neodymium PEI-dome tweeter, and Hertz rates it at 55 W continuous and 220 W peak into 4 Ω with 93.5 dB sensitivity. Its Indian MRP is ₹6,490, the lowest of any Hertz 6.5-inch speaker we sell. It suits buyers who want to upgrade factory speakers without adding an amplifier. Check today's price on our Hertz X 165 product page.
Quick summary
A 6.5-inch coaxial rated at 55 W continuous into 4 Ω, with 93.5 dB sensitivity for head-unit power.
A 24 mm PEI-dome tweeter behind a faceplate Hertz designed for off-axis performance in factory locations.
The lowest-MRP Hertz 6.5-inch speaker we sell, with the Uno K 165 component set as the step up.
Owner feedback is minimal: one rating with no comment, plus one review of the K 165 sibling.
Hertz X 165 specifications
Specification | Hertz X 165 |
|---|---|
Type | 6.5-inch (165 mm) two-way coaxial |
Impedance | 4 Ω |
Power handling | 55 W continuous / 220 W peak |
Sensitivity | 93.5 dB |
Frequency response | 60 Hz–21 kHz |
Woofer cone and surround | Metallic-grey pressed paper, water-repellent; foam surround |
Woofer motor | 25 mm copper voice coil; ferrite magnet, 80 x 40 x 15 mm |
Tweeter | 24 mm PEI dome, neodymium magnet, 14 mm voice coil |
Basket | DIN size, abrasion-resistant dust paint |
Xmech | 3.5 mm |
Weight | 0.73 kg per speaker |
India MRP | ₹6,490 |
Figures come from Hertz's official X 165 page and its tech sheet, which supplies the 55 W continuous and 93.5 dB figures, and they match our store listing. Hertz gives the dimensions only as unlabelled letters, so we haven't quoted a mounting depth; ask us to check your doors.
Built for factory replacement
Everything about the X 165 is aimed at swapping out factory speakers. Hertz says the tweeter faceplate is specially designed for off-axis performance, to keep the response linear in a factory replacement setup, where a door speaker often sits low and aims at your shins rather than your ears. The tweeter itself is a 24 mm PEI dome with a neodymium magnet.
The woofer is a stiff, metallic-grey pressed-paper cone with a water-repellent treatment, a sensible trait for doors that collect moisture in the monsoon, on a foam surround. A 25 mm copper voice coil and an 80 mm ferrite magnet drive it, and the DIN-size basket is meant to make installation easy. Hertz says the combination gives a rich sound even when driven by the OEM head unit; that's a manufacturer claim, but the 93.5 dB sensitivity supports the idea that it doesn't need much power.
Head-unit power, and when to add an amplifier
For most buyers the X 165 will run straight from the head unit, factory or aftermarket, and that's how Hertz pitches it. High sensitivity means more volume from each watt, so a modest built-in amplifier goes further. Turn it up hard, though, and any head unit eventually clips, which is hard on tweeters.
If you want more headroom, an amplifier giving roughly 40 to 60 W per channel suits its 55 W continuous rating. The Zapco ST-2B (₹10,990 MRP) is rated at 2 x 65 W into 4 Ω and lists an OEM speaker-level input for factory touchscreens; set its gain with care, since that's a little above the X 165's continuous rating. Our guide on whether you need an amplifier explains the trade-offs.
What owners and reviewers say about the Hertz X 165
There's very little to go on. When we checked in October 2026, UK retailer Four Car Audio's X165 page showed one customer rating, from October 2020, at the top of its seven-point scale, but with no written comment, so it tells us nothing about how the speaker sounds. The retailer's own description praises it, but that's sales copy, not an owner's view.
The closest written feedback is for a different product: the same retailer's K 165 page, covering the Uno component set rather than this coaxial, has one September 2018 review describing them as clean-sounding speakers. That's encouraging for the range, but it isn't a review of the X 165. If you own a pair, we'd like to hear how they've done in your car.
X 165 vs K 165, DCX 165.3 and CX 165
The Uno K 165 (₹8,990 MRP) is the component version: separate tweeters you can mount higher for a better stereo image, a 6 dB/oct crossover in the tweeter lead, 75 W continuous and a 55 Hz–23 kHz response, against the X 165's 55 W and 60 Hz–21 kHz. Both are rated at 93.5 dB.
The Dieci DCX 165.3 (₹8,990 MRP) is rated at 60 W continuous and 93 dB with the same 60 Hz–21 kHz range, so on paper it's very close; it uses a smaller 15 mm tweeter and a TPU surround where the X 165 has a 24 mm tweeter and foam. The Cento CX 165 (₹12,990 MRP) steps up to a Tetolon-dome tweeter you can aim toward the listener, 70 W continuous and a 55 Hz–22 kHz response. For a wider look at the price band, see our guide to the best car speakers under ₹10,000.
Who should buy it, and who shouldn't
Buy the X 165 if your car takes 6.5-inch speakers, you're keeping the factory head unit or running a basic aftermarket one, and you want a straightforward upgrade with no tweeters to mount.
Look elsewhere if you want the best possible stereo image from the front doors; a component set such as the K 165 lets you mount the tweeter higher. If you plan a powerful amplifier, a speaker with higher continuous handling, such as the CX 165, makes better use of it.
Installation notes for Indian cars
The X 165 has a DIN-size basket, but factory openings and mounting depths vary between cars, and many installs use an adapter ring. Because Hertz doesn't label the mounting depth, check window clearance or ask us to confirm the fit before you buy.
Because the speaker sits in the door, the door itself matters: seal the speaker to its mount and add damping to the outer skin so the woofer's bass isn't lost to rattles. Our sound damping guide shows how, and VA3 Car Studio in Ghaziabad offers professional installation.
Price and where to buy
The Hertz X 165 carries an MRP of ₹6,490. VA3 Car Studio often sells below MRP, so check the current offer on our X 165 product page.
The bottom line
The X 165 does one job: replace factory 6.5-inch speakers with an efficient, purpose-built upgrade, at the lowest MRP among the Hertz 6.5-inch speakers we sell. It's designed for head-unit power and factory locations, and Hertz's figures back that up. Owner feedback is almost absent, and a component set like the K 165 can image better with its tweeters mounted high, but as a simple upgrade it's a sensible choice.
Hertz X 165 FAQ
Does the Hertz X 165 need an amplifier?
No. Its 93.5 dB sensitivity suits factory and aftermarket head units, and Hertz designed it for OEM head-unit power. An amplifier giving 40 to 60 W per channel adds headroom if you want more volume.
What is the difference between the X 165 and the K 165?
The X 165 is a coaxial with the tweeter mounted on the woofer, rated at 55 W continuous. The K 165 is a component set with separate tweeters, rated at 75 W continuous, and it images better when the tweeters are mounted high.
Will the X 165 fit my car's doors?
It has a DIN-size 6.5-inch basket, but factory openings and depths vary, and Hertz doesn't label a mounting depth. Ask us to check your car; many installs need an adapter ring.
Buy the Hertz X 165 Uno in India
Check the Hertz X 165 Uno 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.
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