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If you want fuller sound and clearer vocals in your Subaru Impreza, swapping the stock door speakers is one of the most effective upgrades you can make. Choosing the right door speakers affects tone, imaging, and how much bass the doors can reproduce without distortion, so it is worth matching speaker size, mounting depth, and power handling to your car.This guide covers seven shortlisted options that match typical Impreza door openings and common installation constraints. We evaluated candidates for sound clarity, installation fit, and handling under realistic driving conditions. Read on for factors to weigh before picking the best option for your setup.
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Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | DS18 PRO-GM6B 6.5" Midrange Car Loudspeaker (Single) |  |
| Most Popular A crowd favorite that many people choose with confidence | Sound Storm Laboratories EX365 6.5" 3-Way Car Door Speakers (pair) |  |
| Best Quality Built to a higher standard if you want something more solid | GM Genuine Parts Rear Side Door Coaxial Speaker (15201406) |  |
| Best Budget The cheapest option that still gets the job done reliably | RED WOLF 6.5" Rear Door Speaker Adapter for Subaru Impreza (rear) |  |
| Most Sold A high-volume bestseller chosen again and again | Kenwood KFC-1666S 6.5" 2-Way Coaxial Car Door Speaker |  |
| Best Value for Money The sweet spot between price and what you get | BOSS Audio Systems CH6530B 6.5" 3-Way Car Door Speakers (Pair) |  |
| Best Overall The best all-around choice for most situations | BOSS Audio Systems CH6930B 6×9-inch 3-Way Car Door Speakers (Pair) |  |
1. DS18 PRO-GM6B 6.5" Midrange Car Loudspeaker (Single)
| Speaker Size | 6.5 Inches |
|---|---|
| Impedance | 8 Ohms |
| RMS Power | 140W |
| Peak Power | 480W |
| Sensitivity | 94 dB |
The DS18 PRO-GM6B is a 6.5-inch midrange driver built for loud, vocal-forward reproduction in car doors. It is typically used as an upgrade to factory door speakers or as the midrange in a 2- or 3-way component setup, handling the core audible spectrum from roughly 160 Hz to 10 kHz. Notable hardware includes a 1.5-inch Kapton voice coil and a ferrite magnet that support the listed 140W RMS (480W peak) power handling and a 94 dB sensitivity, which explains why users report high output with modest amplifier power. The speaker’s paper cone and cloth surround favor open, natural mids and the bullet-style projection helps dispersion for clarity on vocals. Practical benefits are strong midrange presence, durability under high power, and clear projection when paired with a proper tweeter and amp. Limitations: it is a single midrange driver without an integrated tweeter, so it will need a complementary high-frequency driver for full-range detail, and the physical mounting depth and cut-out may require door adapters or spacers in some Subaru Impreza door locations.
Best for: Reliability-focused buyers who want a durable, loud midrange upgrade for their Subaru Impreza and prioritize long-term performance over cheap replacements.
Less Ideal for: Buyers seeking a drop-in full-range door speaker or a plug-and-play 2-way set without additional tweeters or mounting work should consider other options.
- High power handling (140W RMS, 480W peak) for loud, distortion-resistant midrange
- High-temperature 1.5" Kapton voice coil for better heat tolerance and long-term reliability
- 94 dB sensitivity produces strong output without needing a huge amplifier
- Paper cone and cloth surround deliver natural midrange tone favored for vocals and instruments
- No integrated tweeter so it does not provide full-range highs on its own
- Relatively deep mounting depth and large cut-out may need door modifications or spacers for some vehicles
Verdict A robust, high-output midrange speaker that delivers reliable, vocal-forward performance for Subaru Impreza door upgrades but requires a separate tweeter and careful mounting.
2. Sound Storm Laboratories EX365 6.5" 3-Way Car Door Speakers (pair)
| Speaker Size | 6.5 Inches |
|---|---|
| Impedance | 4 Ohms |
| Frequency Response | 85 Hz – 18 kHz |
| Sensitivity | 88 dB @ 1 W/1 m |
| Mounting Type | Coaxial, Car Mount |
The Sound Storm EX365 are 6.5-inch three-way coaxial speakers intended as direct replacements for factory door speakers in vehicles like the Subaru Impreza. They deliver a full-range response with a poly injection cone, rubber surround and separate mylar tweeter and midrange to cover highs and mids while the woofer handles lower frequencies. Typical use is plug-and-play door replacement with standard mounting depths, making them convenient for quick upgrades without major modifications. Notable practical benefits are decent sensitivity for driving from a factory head unit and a stamped basket plus high-temperature voice coil for reliable short-term use. Limitations include modest sensitivity compared with premium speakers, a relatively shallow low-end extension so bass won’t be deep without an amplifier, and some reported durability issues in heavy-use cases. These speakers suit listeners who want an affordable, simple swap to improve clarity and treble detail over factory units, but they are not intended for audiophile-level bass or long-term high-power systems.
Best for: Convenience-driven buyers who want a quick, inexpensive upgrade to improve clarity and treble in their Subaru Impreza doors with minimal installation hassle.
Less Ideal for: Drivers seeking deep bass, audiophile detail, or a long-term high-power system should consider higher-end speakers and a dedicated amplifier instead.
- Designed for drop-in replacement in standard 6.5-inch door locations
- Three-way coaxial design provides clearer highs and mids than single-cone factory units
- Poly injection cone and rubber surround resist weather and road vibration
- Reasonable sensitivity for use with a factory head unit without an external amp
- Bass output is limited and will not replace a subwoofer or powerful aftermarket woofers
- Some users report failures under heavy continuous use, raising long-term durability concerns
Verdict A convenient, budget-friendly door speaker upgrade for Subaru Impreza owners who want clearer mids and highs without changing wiring or adding an amp.
3. GM Genuine Parts Rear Side Door Coaxial Speaker (15201406)
| Speaker Type | Coaxial |
|---|---|
| Surround Sound Channel Configuration | 2.0 |
| Included Components | Speaker |
| Audio Driver Type | Dynamic Driver |
| Power Source | Corded Electric |
This GM Genuine Parts coaxial door speaker is a factory-quality replacement designed to restore in-door audio performance. It installs into the rear side door location and is intended to match factory fit, wiring, and mounting so you can replace a blown or aged speaker without modification. The speaker uses a dynamic driver with a coaxial layout and a built-in amplifier characteristic listed by the manufacturer, which helps regain clarity and usable output with the stock head unit. In practice it is used when repairing or refreshing an Impreza's rear door audio: remove the door panel, swap the unit, and reconnect the factory harness. Buyers report straightforward fit and dependable longevity on similar GM platforms, though some listeners find the tonal balance modest compared with aftermarket upgrades. If you want a direct factory-style replacement that prioritizes reliability and correct fit, this speaker delivers, but those chasing big power or audiophile refinement should consider an amplified aftermarket upgrade instead.
Best for: Performance-oriented buyers who prioritize a reliable, factory-fit replacement to restore rear door sound quickly and maintain a stock-like installation on their Subaru Impreza.
Less Ideal for: Users seeking high-output, audiophile-grade sound or those wanting a major upgrade in bass and clarity should look at powered aftermarket speaker systems or component setups instead.
- Factory-quality replacement for restoring original fit and wiring
- Coaxial dynamic driver provides a simple full-range solution without extra crossover wiring
- Designed for direct door-panel swap so no custom mounting is required
- Backed by a recognized OEM parts program for consistent manufacturing quality
- Not tuned for high-end audiophile performance compared with premium aftermarket speakers
- May offer only modest volume headroom with stock head units despite built-in amplifier characteristic
Verdict A dependable factory-style rear door speaker that restores correct fit and reliable sound for drivers who want a straightforward performance-focused replacement.
4. RED WOLF 6.5" Rear Door Speaker Adapter for Subaru Impreza (rear)
| Compatible speaker size | 6.5 inch |
|---|---|
| Fitment (vehicle) | Subaru Impreza 2007-2019 (rear door) |
| Material | Plastic |
| Package quantity | 2 pieces |
This RED WOLF adapter kit provides a straightforward way to fit 6.5-inch aftermarket speakers into the rear doors of Subaru Impreza models. It acts as a spacer and mounting ring that uses the vehicle's existing mounting points so you can install larger or nonfactory speakers without modifying the door shell. The rings are molded from hard plastic for durability and claim enough thickness to reduce door resonance and improve sound clarity compared with a loose or damaged factory gasket. Installation is simple for a DIYer: the product is intended to bolt into the factory screw locations with no special tools and no cutting required in most Impreza rear doors. Fitment can vary by year and speaker depth, so some users may need minor trimming or different hardware to achieve a snug, flush mount. The kit includes two rings for both rear doors and is a budget-friendly option when swapping to standard 6.5-inch speakers in the Impreza's rear.
Best for: Budget-conscious Impreza owners who want a simple, low-cost way to install standard 6.5-inch aftermarket speakers in the rear doors without major body work or professional installation.
Less Ideal for: Owners seeking a precision, factory-quality replacement or those planning deeper custom speaker builds with large mounting depth or unusual bolt patterns should consider purpose-made mounting solutions or professional door modification.
- Designed to mount 6.5-inch aftermarket speakers using existing rear door mounting points
- Hard plastic construction intended to reduce door resonance for cleaner sound
- No cutting or drilling required for typical installations
- Includes a pair for both rear doors so both sides can be upgraded at once
- Fitment is not universal across all Impreza model years and may require trimming or alternate hardware
- Made of hard plastic so it may transmit vibration if not tightly fastened
Verdict A cheap, no-mods way to get 6.5-inch aftermarket rear speakers in an Impreza, but check year-specific fitment and speaker depth before buying.
5. Kenwood KFC-1666S 6.5" 2-Way Coaxial Car Door Speaker
| Speaker Size | 6.5 Inches |
|---|---|
| Impedance | 4 Ohms |
| Frequency Response | 40 – 22000 Hz |
| Sensitivity | 90dB |
| Power Handling (RMS) | 60 watts per pair |
The Kenwood KFC-1666S is a 6.5-inch two-way coaxial speaker intended as a direct-swap style upgrade for vehicle door locations. It uses a polypropylene cone with treated cloth surrounds and a 1-inch balanced dome tweeter to extend highs while the woofer handles midrange. Typical use is replacing worn factory door speakers to get clearer vocals and crisper treble without adding an amplifier. Practical benefits include a shallow top-mount design that simplifies installation behind a door panel and a 4 ohm impedance that pairs with most factory radios. The speakers are tuned for balanced, loud playback at moderate volumes and are reported to be noticeably better than many stock units. Limitations are modest bass output compared with larger or component systems and potential mounting-hole alignment differences that may require adapters or minor trimming during installation. They are discontinued by the manufacturer, so buyers wanting long-term replacement availability should plan accordingly.
Best for: Buyers who prioritize a low-risk, factory-style audio upgrade and want clearer everyday listening from their Subaru Impreza without adding amps or major modifications.
Less Ideal for: Not suited for listeners seeking deep bass or for those planning a high-power amplified system; also avoid if you need guaranteed screw-hole alignment with nonstandard door brackets.
- Shallow top-mount depth eases installation behind door panels
- Balanced dome tweeter improves clarity and high-frequency detail
- Polypropylene cone with treated surrounds offers reliable, distortion-resistant midrange
- Matches standard 4 ohm car head units without extra wiring or adapters
- Bass response is limited compared with larger woofers or powered subwoofers
- Mounting hole pattern may not match every door and can require adapters or minor modifications
Verdict A conservative, easy-to-install 6.5-inch speaker that noticeably improves door-level clarity for Subaru Impreza owners but does not deliver deep bass.
6. BOSS Audio Systems CH6530B 6.5" 3-Way Car Door Speakers (Pair)
| Speaker Size | 6.5 Inches |
|---|---|
| Speaker Type | Coaxial 3-Way |
| Impedance | 4 Ohms |
| Sensitivity | 90 dB |
| Frequency Response | 100 Hz to 15 kHz |
The BOSS CH6530B is a budget-friendly 6.5-inch, 3-way coaxial speaker pair meant for replacing factory door speakers. It combines a poly injection woofer, a polyimide dome midrange and a 0.5-inch piezo tweeter to improve clarity across highs and mids while offering stronger bass than many stock units. Typical use is door-mounted audio upgrades with wired connections to a head unit; many buyers report easy installation using adapter rings and standard wiring. Notable features include a 4 ohm impedance that matches most factory outputs, a claimed 300 watt max power handling and a sensitivity around 90 dB that helps them play loudly from a stock head unit. Practical benefits are clearer treble and mids compared with worn factory speakers and generally easy fitment for door replacement. Important limitations are construction and long-term durability variability reported by users, modest low-frequency extension compared with component systems, and reliance on proper wiring or an amp for heavy use.
Best for: Practical optimizers seeking an inexpensive, clear-sounding upgrade to Subaru Impreza door speakers who prioritize ease of installation and noticeable mid/high improvement over factory speakers.
Less Ideal for: Audiophiles chasing deep, tight bass or competition-level sound and users who plan to run high power without adding a proper amplifier should consider higher-end component speakers instead.
- Three-way coaxial design adds dedicated midrange and tweeter for clearer vocals and highs.
- 90 dB sensitivity makes them reasonably loud on a factory head unit without an external amp.
- Standard 4 ohm impedance is compatible with most factory outputs for direct swap installations.
- Lightweight polyurethane cone and stamped basket ease installation and reduce stress on door panels.
- Build quality can be inconsistent which may affect long-term reliability.
- Bass extension is limited compared with larger or component speakers and may need an amp for punchier low end.
- Included wiring or accessories reported by some users may be subpar for high-power use.
Verdict A budget-conscious door speaker pair that delivers clearer mids and highs for a Subaru Impreza but sacrifices low-end punch and long-term consistency compared with higher-end options.
7. BOSS Audio Systems CH6930B 6×9-inch 3-Way Car Door Speakers (Pair)
| Speaker Type | Coaxial, 3-way |
|---|---|
| Impedance | 4 Ohms |
| Frequency Response | 50 Hz to 20 kHz |
| Sensitivity | 92 dB @ 1W/1m |
| Woofer Diameter | 9 Inches |
The BOSS CH6930B 6×9 pair replaces factory door speakers to deliver stronger mids and bass for everyday listening in a Subaru Impreza. They are 3-way coaxial speakers with a 9-inch woofer, 2-inch midrange and a 0.75-inch piezo tweeter, giving a fuller frequency span from about 50 Hz up to 20 kHz. Typical use is as a direct door upgrade driven by the head unit or, for cleaner performance at higher volume, paired with a small amplifier. Notable features include a poly injection cone with rubber surround and stamped basket that keep the cones stable under power, and a 92 dB sensitivity rating that helps them play loud with modest head unit output. Practical benefits are clearer vocals and stronger low end compared with most stock door speakers, and relatively straightforward installation into door locations. Limitations are that they are budget-oriented: the piezo tweeter and plastic grille are not competition grade, some users report fitment holes may need minor adjustment, and distortion can appear if pushed very hard without amplification.
Best for: Balanced buyers who want an affordable, all-round sound upgrade for daily driving—those who prioritize improved clarity and louder in-cabin sound without chasing high-end audio competition levels.
Less Ideal for: Audiophiles seeking reference-level clarity, or installers who need perfect factory-fit, competition-grade components and zero compromise on high-volume distortion.
- Full-range 3-way design provides clearer highs and fuller mids than typical stock door speakers
- Relatively high sensitivity (92 dB) so they play loudly with factory head units
- Poly injection cone and rubber surround improve cone durability under regular use
- Sold as a pair with mounting components suitable for door installation
- Piezo tweeter and plastic grille are lower-end components compared with higher-priced speakers
- May require minor modifications to mounting holes or retention hardware for a precise fit
- Can distort when driven very hard without an external amplifier
Verdict A budget-friendly 6×9 door speaker pair that noticeably upgrades in-car clarity and loudness for a Subaru Impreza, best when paired with a modest amp for clean high-volume performance.
Choosing the Right Subaru Impreza Door Speakers: Key Factors to Consider
Speaker Size and Mounting Depth
Door speakers must physically fit into the existing openings and recesses in the Impreza doors. Measure the factory speaker diameter and the available depth behind the mounting surface, because insufficient clearance can cause the speaker basket or cone to rub against inner door structures.
Mounting depth also affects whether you need spacers or shallow-mount models. Choosing the correct size prevents costly modifications and preserves factory trim. Some aftermarket options include adapters or slim profiles to simplify installation while maintaining proper sealing for bass response.
Power Handling and Sensitivity
Power handling ratings indicate how much amplifier power a speaker can accept before risking damage, while sensitivity reflects how loudly a speaker plays with a given input. For many Impreza owners using the factory head unit, higher sensitivity can yield better perceived volume without an amp. If you plan an amplifier, match the speaker's RMS rating to the amp's output to avoid clipping and distortion.
A balance between sensitivity and power handling matters because low-sensitivity speakers may sound weak on stock systems, whereas high-power models may be overkill without amplification. Consider realistic driving noise and listening habits when prioritizing these specs.
Speaker Type: Coaxial Vs Component
Coaxial speakers combine tweeter and midrange in one unit and fit into factory locations easily, making them a common choice for door upgrades. Component systems separate the tweeter and midrange, providing improved imaging and clearer highs but often require extra mounting locations and tweeter placement considerations.
Choosing between coaxial and component door speakers depends on how much effort you want to invest in installation and how important soundstage and detail are to you. Coaxials offer a simpler path with fewer mounting changes, while components can deliver superior fidelity if you can accommodate the additional parts.
Frequency Response and Sound Signature
Frequency response gives a broad idea of how a speaker reproduces lows, mids, and highs. For door speakers, look for models that offer balanced midrange and clear highs without excessive emphasis that causes glare. A speaker with extended bass in a small door cavity can sound fuller, but real bass depends on door volume and enclosure characteristics.
Consider your listening preferences: neutral signatures favor accuracy, while slightly warm or bass-leaning speakers may provide more perceived impact in everyday driving. Keep in mind that equalization and source quality also influence the final tonal outcome.
Materials and Durability
Car doors expose speakers to temperature swings, humidity, and vibration, so cone materials, surround composition, and frame corrosion resistance matter. Polypropylene or treated paper cones often resist moisture well, while rubber surrounds typically outlast foam in automotive environments.
Durable tweeter housings and corrosion-resistant mounting hardware extend service life. Choosing robust materials reduces the chance of deterioration and helps maintain consistent performance over time.
Installation Hardware and Ease
A straightforward installation reduces labor time and the risk of improper mounting that can degrade sound. Check whether speakers come with mounting brackets, screws, wiring harnesses, or trim adapters designed for common vehicles. For the Impreza, pre-made adapters and plug-and-play harnesses can save significant effort.
Consider the need for speaker spacers, grille clearance, and whether the factory door panels require trimming. Ease of installation also affects whether a DIYer can reasonably complete the swap or whether professional installation is advisable.
FAQ
Will aftermarket door speakers fit my Subaru Impreza without modifications?
Often you can find speakers designed to match the Impreza's factory mounting patterns and depth, which allows installation without major door modifications. However, fit varies by speaker model, so verify the mounting diameter and depth before buying. In some cases slim-mount speakers or simple adapters are needed to avoid trimming or altering the door panel.
Do I need an external amplifier for better sound?
It depends on your expectations and the factory system. Many higher-sensitivity speakers perform well on a stock head unit, but an external amplifier usually improves dynamics, headroom, and clarity. If you want louder, cleaner bass and lower distortion at high volume, pairing speakers with an appropriately matched amp is recommended.
Should I choose coaxial or component door speakers for my car?
Coaxial speakers are simpler to install and provide an all-in-one solution for improved sound, while component speakers separate tweeters from midrange drivers for better imaging and clarity. If you prefer an easy upgrade with minimal modifications, coaxials are practical. If soundstage and detailed reproduction are priorities and you can place tweeters separately, components can offer superior results.
How important is mounting depth for door speaker replacement?
Mounting depth is crucial because insufficient clearance can cause the cone or basket to contact door internals, leading to noise and damage. Accurate depth measurement ensures the chosen speaker will sit flush and allow proper gasket sealing for better bass response. If depth is limited, look for shallow-mount options or plan for spacers.
Can I improve bass from door speakers without adding a subwoofer?
You can improve perceived bass by choosing speakers with good low-frequency extension and ensuring a tight seal between the speaker and door panel. Sound deadening and proper mounting help reduce panel vibration and improve bass articulation. However, a dedicated subwoofer will still deliver deeper, more authoritative bass than door speakers alone.
How do I match speakers to my existing head unit or amplifier?
Match speaker RMS power handling to the continuous output of your amplifier to avoid damage and distortion. Also consider sensitivity ratings: higher-sensitivity speakers play louder at the same input. If using a factory head unit, prioritize sensitivity and clear midrange; if adding an amplifier, focus on speakers with suitable RMS ratings and impedance for the amp.
How We Chose the Best Subaru Impreza Door Speakers
We focused on speakers that fit the Subaru Impreza door openings and mounting depth typical of that model. Our primary evaluation criteria were sound quality, measured by clarity and frequency balance; installation compatibility, including mounting depth and adapter availability; power handling and sensitivity, to match common factory and aftermarket amplifiers; build quality and materials for long-term durability in a car environment; and user serviceability, including available wiring and mounting hardware. We also considered the speaker type, whether coaxial or component, since that affects installation complexity and imaging.We excluded speakers that require major door modifications, custom fabrication, or specialized tools beyond typical DIY skill levels. Units that do not offer clear fitment data for the Subaru Impreza or lack basic mounting hardware were also removed. The resulting list emphasizes practical upgrades that balance sound improvement with straightforward installation and reliable performance.
Our full evaluation process is outlined in our review methodology.
Conclusion
Choosing the right Subaru Impreza door speakers means balancing physical fit, sound goals, and the amount of installation work you are willing to accept. Prioritize correct speaker size and mounting depth, along with power handling and sensitivity that match your head unit or planned amplifier.Decide whether simplicity or maximum fidelity matters more to you when choosing between coaxial and component options, and pay attention to materials and included hardware to ensure lasting performance. Thoughtful selection and proper installation will yield the largest improvement in daily listening quality.
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