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Upgrading your Subaru Forester door speakers can transform daily drives, giving you clearer vocals, tighter bass, and better overall fidelity. Choosing the right speakers matters because fit, power handling, and mounting depth affect both sound and whether installation is straightforward. This guide covers seven shortlisted options that fit the Forester and meet common buyer priorities. We evaluated each pick across sound quality, installation complexity, and compatibility to help you find the best match for your listening style and installation skills.
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Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | BOSS Audio Systems CH6530B 6.5" 3-Way Coaxial Car Door Speakers (Pair) |  |
| Most Popular A crowd favorite that many people choose with confidence | Sound Storm Laboratories EX365 6.5" 3-Way Car Door Speaker (pair) |  |
| Best Quality Built to a higher standard if you want something more solid | GM Genuine Parts 19116642 Front Door Radio Speaker |  |
| Best Budget The cheapest option that still gets the job done reliably | Pyle PL31BK 2-Way 3.5" Coaxial Car Speakers (Pair) |  |
| Most Sold A high-volume bestseller chosen again and again | Alphasonik AS265P 6.5" 3-Way Coaxial Car Speakers (4-Pack) |  |
| Best Value for Money The sweet spot between price and what you get | BOSS Audio Systems Phantom Series P65.4C 6.5" 4-Way Car Door Speakers (pair) |  |
| Best Overall The best all-around choice for most situations | Kenwood 6.5" KFC Series 2-Way Car Door Coaxial Speaker (KFC-1666S) |  |
1. BOSS Audio Systems CH6530B 6.5" 3-Way Coaxial Car Door Speakers (Pair)
| Speaker Type | Coaxial 3-way |
|---|---|
| Speaker Size | 6.5 Inches |
| Impedance | 4 Ohms |
| Tweeter Diameter | 0.5 Inches |
| Woofer Material | Poly injection cone |
The CH6530B is a budget-friendly 6.5-inch 3-way coaxial speaker pair intended to replace factory door speakers in vehicles like the Subaru Forester. It combines a 6.5-inch poly injection woofer, a polyimide dome midrange, and a 0.5-inch piezo tweeter to improve mid and high detail compared with many stock units. Installation is straightforward in Forester door locations using standard mounting and adapter rings if needed, and the 4 ohm impedance makes them compatible with most factory head units. In practice these speakers deliver noticeably clearer treble and mids and punchier bass than OEM doors at moderate volume, making them a good reliability-focused upgrade for daily driving. Limitations: they are an economical design so heavy sustained power or competition-level bass will expose weaknesses and some users report durability issues if paired with poor wiring or overloaded systems. Expect sensible gains in clarity and volume but not audiophile-level fidelity or extreme SPL performance.
Best for: Reliability-minded Forester owners who want a straightforward, cost-conscious upgrade that improves clarity and everyday listening without changing the head unit or adding amplifiers.
Less Ideal for: Audiophiles chasing top-tier sound quality, or owners who plan to run high-power amplifiers and demand competition-level bass and durability.
- Three-way coaxial design provides better mid and high clarity than typical factory door speakers.
- Standard 6.5-inch size fits Subaru Forester door locations with common adapter rings.
- 4 ohm impedance works with factory head units without needing an external amplifier.
- Poly injection cone and rubber surround offer a balance of stiffness and controlled bass for door-mounted use.
- Not designed for high-power or competition-level use so bass and longevity can suffer under heavy loads.
- Not water resistant, so exposure to moisture in door cavities can shorten life if seals are poor.
Verdict A practical, budget-friendly 6.5-inch 3-way replacement for Subaru Forester doors that boosts clarity for everyday use but is not built for high-power or waterproof applications.
2. Sound Storm Laboratories EX365 6.5" 3-Way Car Door Speaker (pair)
| Speaker Size | 6.5 Inches |
|---|---|
| Impedance | 4 Ohms |
| Frequency Response | 85 Hz – 18 kHz |
| Sensitivity | 88 dB @ 1 W/1 m |
| Configuration | 3-way coaxial |
The EX365 is a 6.5-inch, 3-way coaxial speaker pair intended for straightforward door replacement in common vehicles like the Subaru Forester. It delivers a full-range response with a polypropylene cone, rubber surround, and a Mylar dome tweeter for clearer highs and a midrange presence that improves factory audio systems without an external amp. Mounting depth and common 6.5-inch sizing make the speakers suitable for drop-in installation in Forester doors with standard speaker openings, and the stamped basket keeps cost and weight down. Practical benefits include decent sensitivity for use with a factory head unit and a design that resists weather at the cone edge due to the rubber surround. Limitations are stability and long-term durability compared with higher-end brands; some users report early failures and modest low-end extension, so they are better for straightforward replacements than for high-power systems or deep bass demands.
Best for: Convenience-driven buyers who want a quick, affordable upgrade to their Forester’s door speakers with minimal modification or extra gear.
Less Ideal for: Audiophiles or Forester owners looking for deep bass or high-power aftermarket systems should consider component speakers and a separate amp instead.
- Standard 6.5-inch 3-way coaxial layout fits most door openings for easy replacement in a Forester
- Polypropylene cone and rubber surround offer weather resistance and stable midbass for daily driving
- Designed sensitivity that works acceptably with a factory head unit without requiring an external amplifier
- Includes common mounting hardware and a stamped basket for simple install and alignment
- Not engineered for heavy power or deep bass performance compared with powered or premium component systems
- Some customer reports of premature failures suggest variable long-term reliability
Verdict A budget-friendly, drop-in 6.5" door speaker that improves factory sound in a Subaru Forester with easy installation but is not suited for high-power bass-heavy systems.
3. GM Genuine Parts 19116642 Front Door Radio Speaker
| Speaker Type | Coaxial |
|---|---|
| Impedance | 4 Ohms |
| Speaker Size | 10.4 Inches |
| Power Source | Corded Electric |
This GM Genuine Parts front door coaxial speaker replaces a vehicle's factory front door speaker to restore sound clarity and fit. It is a plug-and-play, vehicle-specific speaker designed to install into an existing door speaker location and connect to the factory wiring without modification. The speaker uses a dynamic driver with a 4-ohm impedance and a separate woofer and tweeter arrangement to cover a broad range of frequencies, so it reproduces vocals and midrange with a factory-balanced character. Buyers will appreciate the straightforward fitment, OEM-level form and the GM/ACDelco validation that keeps mounting and wiring simple. Limitations are typical of a factory-replacement speaker: it is not a high-power aftermarket upgrade for heavy bass or audiophile use and a few users report shorter service life under heavy use compared with higher-tier aftermarket components. Expect dependable, factory-like sound and hassle-free installation when you want to return door audio to factory performance rather than push output limits.
Best for: Performance-oriented buyers who prioritize accurate, factory-like sound reproduction and a seamless, no-fuss replacement for a vehicle's front door speaker.
Less Ideal for: Drivers seeking a high-output upgrade, deep bass performance, or an audiophile-level speaker system should consider aftermarket component speakers or an amplified solution instead.
- Factory-validated fit and form for straightforward, plug-and-play installation
- Coaxial design with woofer and tweeter provides balanced midrange and treble reproduction
- 4-ohm impedance matches common factory audio outputs for reliable compatibility
- Manufactured to GM/ACDelco standards for consistent fit and finish
- Not designed as a high-output upgrade for heavy bass or aftermarket amplifiers
- Some users report shorter lifespan under heavier daily use compared with premium aftermarket speakers
Verdict Choose this when you want a dependable, factory-quality front door speaker that restores OEM sound and fit rather than a high-output aftermarket upgrade.
4. Pyle PL31BK 2-Way 3.5" Coaxial Car Speakers (Pair)
| Impedance | 4 Ohms |
|---|---|
| Subwoofer Diameter | 3.5 Inches |
| Tweeter Diameter | 1 Inches |
| Power | 60W RMS / 120W peak |
These Pyle PL31BK speakers are a low-cost, compact 2-way coaxial set intended as direct replacements for small factory speakers in door or dash locations. Each speaker pairs a 3.5" woofer with a 1" neodymium film dome tweeter and a dual voice coil design to deliver louder, clearer highs and fuller midrange than many aging factory units. They include mounting hardware and wiring for a straightforward swap and a shallow mounting depth that simplifies installation behind Subaru Forester door panels that accept small factory speakers. In real use they provide noticeably improved clarity and volume for casual listening, though they are limited by modest power handling and can distort if driven hard from a high-power aftermarket head unit or amp. Expect punchy mids and pronounced treble rather than deep bass. For owners who want a quick, inexpensive sound upgrade without changing speakers sizes or adding an amplifier, these are a practical choice; audiophiles or anyone seeking stronger low-frequency response will want larger speakers or an amplifier instead.
Best for: Budget-conscious Forester owners who want an inexpensive, straightforward upgrade to factory door or dash speakers without changing speaker size or adding amplification.
Less Ideal for: Drivers seeking deep bass, high-power handling, or audiophile-level detail should consider larger speakers and an amp rather than this small budget pair.
- Shallow mounting depth simplifies installation behind factory door panels
- Includes pair with wiring and mounting hardware for a plug-in replacement
- 2-way coaxial design with a neodymium dome tweeter improves clarity and highs over worn factory speakers
- Compact size fits small speaker openings without modifying door panels
- Limited power handling can distort at high volume with aftermarket head units or amplifiers
- Small woofer size delivers limited low-frequency bass response compared with larger speakers
Verdict A cheap, easy-to-install speaker pair that noticeably improves clarity over stock Forester speakers but sacrifices low-end and high-power performance.
5. Alphasonik AS265P 6.5" 3-Way Coaxial Car Speakers (4-Pack)
| Speaker Size | 6.5 Inches |
|---|---|
| Impedance | 4 Ohms |
| Tweeter Diameter | 1 Inches |
| Number Of Circuits | 3 |
| Is Waterproof | FALSE |
The Alphasonik AS265P is a budget-friendly 4‑piece 6.5" coaxial speaker set intended to replace factory door speakers and improve in-car clarity and volume. In a Forester these speakers serve as direct replacements for common 6.5" door locations and are typically used with the factory head unit or a modest aftermarket deck. Notable features include a polypropylene cone, a 1" polyetherimide tweeter for clearer highs, ferrite magnet motors, included grilles and mounting hardware, and a stated sensitivity of 92 dB that helps them play louder from deck power. Buyers will get clearer mids and treble and a noticeable step up from stock units without adding an amplifier. Limitations are typical for the price class: 35 W RMS per speaker means tight headroom before distortion with heavy bass, the ferrite magnets and shallow mounting design trade off low-frequency extension, and these are not waterproof so door sealing and damping matter for longevity. Installation is straightforward but some Forester models may require speaker adapters or slight trimming for a perfect fit.
Best for: Risk-averse mainstream buyers seeking a reliable, budget upgrade to stock Forester door speakers who prioritize predictable, easy improvements over high-end tuning.
Less Ideal for: Audiophiles who want deep, amplifier-driven bass or people planning to run high-power amplifiers and subs as part of a major system upgrade.
- Includes four 6.5" speakers with grilles and mounting hardware for a full door swap
- 92 dB sensitivity makes them louder with factory head units without an amp
- Polypropylene cone and polymer tweeter resist deformation and keep highs clear
- Shallow mounting depth simplifies replacement in many factory door locations
- Limited continuous power handling (35 W RMS) so heavy bass may distort at high volumes
- Not rated waterproof so exposure to moisture or poor door seals can reduce life
Verdict A low-cost, easy-to-install door speaker upgrade for Forester owners who want clearer mids and highs without adding an amp, but not the choice for heavy bass or high-power systems.
6. BOSS Audio Systems Phantom Series P65.4C 6.5" 4-Way Car Door Speakers (pair)
| Speaker Type | Coaxial |
|---|---|
| Speaker Size | 6.5 Inches |
| Impedance | 4 Ohms |
| Signal-to-Noise Ratio | 70 dB |
| Tweeter Diameter | 0.75 Inches |
The BOSS Phantom P65.4C is a 6.5-inch 4-way coaxial speaker pair intended as an affordable door-speaker upgrade for a Forester. It combines a polypropylene woofer, a dedicated midrange and dual tweeters to extend highs and improve vocal clarity compared with many factory units. In practical use these speakers work well driven by a factory head unit at moderate volume and respond notably better when paired with modest amplification for tighter bass and more headroom. Notable features include a claimed 400W peak power handling, 4 ohm impedance and a dynamic driver configuration that emphasizes clarity across the mid and high bands. The benefits are clear: much better vocal and treble detail, a sturdy cast-aluminum basket for stable mounting, and straightforward wired installation into common 6.5-inch door openings. Limitations are that sensitivity is modest so bass is limited without an amp or sub, they are not water resistant so placement and sealing in door assemblies matters, and the stated peak power is not reflective of continuous output so expect realistic performance at lower RMS levels.
Best for: Practical optimizers who want an inexpensive, measurable sound upgrade to their Subaru Forester's door speakers without investing in high-end components or a full system overhaul.
Less Ideal for: Audiophiles seeking deep bass or factory-quality waterproof speakers for frequent open-window or off-road use should consider higher-end component sets or weather-rated options instead.
- 4-way coaxial design improves midrange and high frequency detail compared with typical factory door speakers
- Cast-aluminum basket and polypropylene cone for durable mounting and consistent response
- Compatible with common 6.5-inch door openings and installs with standard wired connections
- Performs noticeably better when paired with even a modest external amplifier
- Not water resistant so exposed mounting locations in doors require proper sealing
- Modest sensitivity means limited bass and lower loudness without more power
- Peak power rating is marketing-oriented and does not indicate sustained RMS output
Verdict An affordable 4-way 6.5" door speaker pair that delivers clear mids and highs for Forester owners willing to add an amp for fuller sound.
7. Kenwood 6.5" KFC Series 2-Way Car Door Coaxial Speaker (KFC-1666S)
| Speaker Size | 6.5 Inches |
|---|---|
| Impedance | 4 Ohms |
| Frequency Response | 40 – 22000 Hz |
| Sensitivity | 90 dB |
| Tweeter Diameter | 1 Inches |
The Kenwood 6.5" KFC Series coaxial is a straightforward door speaker upgrade intended to replace factory drivers in a Subaru Forester without changing the head unit or adding an amplifier. It uses a polypropylene cone with treated cloth surround and a 1" balanced dome tweeter to deliver clear vocals and crisp highs across a 40–22,000 Hz range. The speakers are rated for conservative RMS power and a 4 ohm load, so they run reliably from a factory head unit and will get louder and cleaner with a small aftermarket amp. Practical benefits include a shallow top-mount depth that simplifies installation in many Forester door pockets and a high sensitivity that helps produce usable volume at stock power levels. Limitations are predictable: these are not bass-heavy drivers, and users seeking deep low-end will need a powered subwoofer or a larger system upgrade. Some vehicles may require minor mounting adjustments or adapters to line up screw holes during installation.
Best for: A balanced all-round buyer who wants an affordable, reliable speaker that improves clarity and volume over factory drivers without a full audio overhaul in a Subaru Forester.
Less Ideal for: Audiophiles or bass-focused buyers who expect deep low-end from door speakers should look at component systems and a dedicated subwoofer instead.
- Shallow top-mount depth that eases installation behind door panels in many Forester model years
- Balanced dome tweeter for clear highs and improved vocal detail over stock speakers
- 90 dB sensitivity helps reasonable volume from factory head units without an amplifier
- Durable polypropylene cone and treated surround resist typical car interior wear
- Limited low-frequency output so bass performance is modest without a subwoofer
- Mounting hole pattern may not match every Forester door bracket and can need adapters or minor modification
Verdict A practical, balanced 6.5" door speaker for Forester owners who want clearer mids and highs from a factory-powered system but not deep bass.
Choosing the Right Subaru Forester Door Speakers: Key Factors to Consider
Speaker Size and Mounting Depth
Knowing the exact speaker diameter and mounting depth is essential because door cavities have limited space and fixed mounting locations. If a speaker is too deep it can contact window mechanisms or inner door panels, causing noise or preventing window operation.
Accurate size and depth information also determines whether you need spacer adapters or trimming. A correct fit reduces installation time and avoids improvised mounting solutions that can hurt sound quality and lead to rattles over time.
Power Handling and Sensitivity
Power handling indicates how much amplifier power a speaker can accept without damage, while sensitivity shows how efficiently it converts power into volume. Together these specs inform whether the speaker will work well with your factory radio or if you should add an amplifier.
Choosing a speaker with appropriate RMS power and decent sensitivity minimizes distortion at higher volumes and ensures consistent performance across listening levels. Overspecifying power without the right amplification can also lead to poor sound or wasted capability.
Speaker Type: Coaxial Vs Component
Coaxial speakers combine tweeters and midrange drivers in one unit, offering simpler installation and a compact footprint. Component speakers separate the tweeter and woofer, providing better imaging and control but requiring more mounting options and potentially additional wiring or crossover placement.
In a door-limited environment, coaxial units can be a practical way to upgrade sound quickly. Component systems can deliver clearer high-frequency detail and a wider soundstage if you have room for proper tweeter placement and are willing to invest more in installation.
Frequency Response and Tonal Balance
Frequency response affects how a speaker reproduces bass, mids, and highs. A balanced response helps voices come through clearly while preserving musical detail across genres. Pay attention to low-frequency extension if you expect strong bass from door-mounted speakers, since doors have limited low-end capability compared with subwoofers.
Tonal characteristics also impact equalization choices and how the system blends with other speakers. Knowing a speaker's emphasis on mids or highs helps you predict whether it will suit vocals, rock, or bass-heavy music without heavy EQ adjustments.
Materials and Durability
Cone materials, surround construction, and frame quality influence sound character and long-term reliability. Materials like treated paper, polypropylene, or woven composites each offer tradeoffs between warmth, responsiveness, and resistance to moisture and heat.
Because door speakers are exposed to temperature swings and occasional moisture, prioritize corrosion-resistant hardware and durable surrounds. Better materials usually mean more consistent performance and fewer issues like cone deformation or surround deterioration over time.
Installation Complexity and Mounting Hardware
Consider how much modification is needed to mount new speakers in the Forester doors. Some upgrades require only bolt-on replacement using existing holes, while others need adapters, spacers, or trimming of door panels. Wiring harness compatibility also affects installation time and whether you need crimping or soldering.
Lower complexity saves time and reduces the chance of vehicle damage during installation. If you plan to add an amplifier or crossovers, account for routing space and where to mount additional components for a clean, secure setup.
FAQ
Will aftermarket door speakers fit my Subaru Forester without modifications?
Many aftermarket door speakers are designed to match common factory sizes and can fit without major modifications, but fitment varies by model year and trim. Check exact speaker diameter, mounting depth, and hole pattern for your Forester. In some cases you may need simple adapters or spacers, but extensive cutting or permanent changes are usually avoidable.
Can I use my factory radio with new door speakers?
You can often use the factory radio, especially with speakers that have moderate sensitivity and power handling. However, if you choose speakers that require more power for clean output, adding a small amplifier will yield better dynamics and lower distortion. Evaluate the speakers' sensitivity and RMS power to decide if the factory head unit is sufficient.
Are component door speakers worth the extra effort over coaxial units?
Component systems generally offer improved imaging and clearer high frequencies because the tweeter and woofer are optimized separately. They can be worth the effort if you prioritize soundstage and detailed playback. Coaxial speakers provide a simpler, quicker upgrade that still improves overall clarity for most listeners, particularly when door space or budget is limited.
How do I prevent rattles after installing new door speakers?
Rattles usually stem from loose hardware, poor mounting, or vibrating door panels. Use proper mounting screws and, if available, manufacturer-supplied adapters. Adding foam baffles or sound-deadening material around the speaker and inside the door panel helps reduce resonance and improves perceived bass response. Ensure wiring is secured and not contacting moving parts.
What role does speaker sensitivity play in perceived loudness?
Speaker sensitivity measures how loud a speaker will play with a given power input. Higher sensitivity speakers will sound louder with the same power compared with lower sensitivity units. If you plan to rely solely on a factory head unit, choosing speakers with higher sensitivity can improve perceived loudness without adding an amplifier.
How We Chose the Best Subaru Forester Door Speakers
We focused on options that specifically fit Subaru Forester door openings and mounting patterns while delivering reliable sound performance. Key evaluation criteria included speaker size and mounting depth to ensure physical fit, power handling and sensitivity for amplifier pairing, frequency response and cone materials for tonal balance and durability, installation complexity and needed adapters for an accurate assessment of time and effort, and build quality and weather resistance because door speakers face moisture and temperature swings. We excluded products that require extensive dash or structural modifications or that lack clear fitment information for the Forester. We also filtered out items with consistently poor user feedback on longevity or installation issues. The final list balances performance, ease of installation, and durability to represent practical choices for Forester owners.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing Subaru Forester door speakers, prioritize correct fit and mounting depth first to avoid installation headaches. Balance power handling and sensitivity with your existing head unit or planned amplifier to achieve clean, distortion-free playback. Also weigh speaker type and materials against your listening goals and installation willingness. For most Forester owners, a well-matched speaker that installs cleanly and uses durable materials will deliver the best long-term value and listening experience.
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