2011 Subaru Forester Speaker Sizes and Audio System Guide
2011 Subaru Forester Speaker Sizes and Audio System Guide
This page covers the factory speaker layout, common speaker locations, and upgrade considerations for the 2011 Subaru Forester. Equipment can vary by trim, body style, and audio package, so the speaker count and audio setup may differ across vehicles. Factory amplifier details should be verified by trim and audio package, and selected audio systems may also include tweeters if equipped.
Data verified by Nick Marchenko, PhD
Speaker Size Chart – 2011 Subaru Forester
Use this table as the main reference. Fitment depends on trim, factory audio package, mounting depth, and adapter availability.
| Location | Type | Factory Size | Note |
|---|---|---|---|
| Front Door | Full-Range | 6.5 inch | |
| Rear Door | Full-Range | 6.5 inch | |
| Front | Tweeter | 1 inch | if equipped |
Generic speaker location diagram. The table above shows the specific factory sizes for this vehicle. Exact location details may vary by body style and trim.
Recommended Speakers for the 2011 Subaru Forester
Selected aftermarket speakers that match the factory sizes for this vehicle. Always verify mounting depth, connector type, and audio package before ordering.
6.5" Speakers
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Speaker Count by Trim – 2011 Subaru Forester
Speaker count and audio equipment vary by trim and factory audio package. This table lists known configurations from our database.
| Trim | Speakers | Amplifier | Radio | Navigation |
|---|---|---|---|---|
| 2.5X Touring 4dr All-wheel Drive | 7 | – | – | – |
| 2.5XT Touring 4dr All-wheel Drive | 7 | – | – | – |
| 2.5X Limited 4dr All-wheel Drive | 6 | opt | – | – |
| 2.5X 4dr All-wheel Drive | 4 | opt | – | – |
| 2.5X Premium 4dr All-wheel Drive | 4 | opt | – | – |
| 2.5XT Premium 4dr All-wheel Drive | 4 | – | – | – |
Data sourced from manufacturer specifications. Verify with the window sticker or dealer before ordering audio components.
Vehicle and Audio System Specifications
This block helps identify the vehicle and its audio system configuration for fitment decisions.
Crossover vs SUV – Audio Differences
Body style can affect factory audio layout, but this model has no body-style-specific speaker data in the database. Different versions may vary in rear speaker placement, speaker count, and audio package content. Factory amplifier details should be verified by trim and audio package, and tweeters may be included if equipped.
What Speakers Fit the 2011 Subaru Forester?
Aftermarket fitment should start with the factory speaker locations listed above, but diameter alone is not enough. Check mounting depth, bracket fit, connector type, and whether the vehicle has a premium or factory-amplified audio system. On this 2011 Subaru Forester, the listed front and rear door speakers are 6.5 inch full-range units, and front tweeters are listed if equipped. Factory speaker count can vary by trim, so confirm the exact audio package before ordering.
Usually Safe Upgrades
- If your vehicle uses the front door location, a 6.5 inch full-range speaker is the factory size to match.
- If your vehicle uses the rear door location, a 6.5 inch full-range speaker is the factory size to match.
- If your vehicle includes front tweeters, 1 inch tweeters may be part of the factory layout if equipped.
- If your trim uses a higher speaker count audio system, verify which locations are active before choosing replacement speakers.
Check Before Buying
- Confirm the speaker location and size for your exact vehicle before buying, since trim equipment can vary.
- Measure mounting depth and check the factory bracket shape so the new speaker will physically fit the opening.
- Verify connector style and wiring before ordering adapters or harnesses.
- If your vehicle has a premium audio package, confirm whether the speaker setup differs from the base system.
Installation Notes
The 2011 Subaru Forester uses 6.5-inch full-range speakers in the front and rear doors, and some trims may also include 1-inch front tweeters if equipped. Speaker counts vary by trim, so verify your exact audio package before ordering parts. Installation usually starts with careful panel removal, since the door panels and trim pieces can be easy to mark or break if pried too aggressively. Check speaker depth and mounting depth before choosing replacements, especially if you are upgrading to a larger magnet or a higher-power speaker. Mounting adapters may be needed to match the factory openings, and harness adapters can help keep the wiring clean and reversible. Factory amplifier details should be verified by trim and audio package, since equipment can vary. If your vehicle has the factory subwoofer, plan the upgrade around that system as well. After installation, test balance, fade, and tweeter output before reinstalling all panels.
Moderate difficulty, since trim removal, depth checks, and wiring verification matter on this vehicle.
Common Mistakes When Replacing Speakers
The 2011 Subaru Forester can vary a lot by trim and audio package, so the biggest mistakes usually come from assuming one speaker layout fits every version.
- Buying based only on the body-style label instead of checking actual speaker locations on the vehicle.
- Ignoring trim and audio package differences, since speaker count can range from 4 to 7 and factory amplifier details should be verified by trim.
- Choosing speakers without checking mounting depth and overall size, especially for the 6.5-inch front and rear door locations.
- Overlooking connector and wiring differences, which can change with the factory audio setup and may require adapter planning.
- Forgetting to confirm whether tweeters are present if equipped, since the front tweeter location is optional on this model.
- Skipping a test fit and sound check before reassembly, which can catch clearance, polarity, and fitment issues early.
Generation & Model Family
The 2011 Subaru Forester belongs to the Third generation (SH) - Facelift (2011–2013) family. Nearby model years often share similar speaker locations and audio layouts, but exact fitment can vary by trim and audio package – verify before ordering.
Recommended Upgrade Path
The 2011 Subaru Forester uses a simple speaker layout, but equipment can vary by trim and audio package. Some versions include factory tweeters, and factory amplifier details should be verified by trim. That makes the best upgrade path depend on your current system, whether you want cleaner sound, more output, or a subtle factory-style refresh.
| Goal | Best Upgrade Path | Why |
|---|---|---|
| Better clarity | Start with the front stage by upgrading the front door speakers and, if equipped, the front tweeters for cleaner mids and highs. | The front speakers do most of the work for vocals and detail, so improving them first gives the biggest clarity gain. If tweeters are present, matching them to the new front speakers can sharpen the sound without changing the rest of the system. |
| More bass | Add an aftermarket subwoofer to complement the factory speakers and fill in the low end. | The listed factory speaker layout does not include a subwoofer, so adding one is the most effective way to increase bass. This lets the door speakers handle mids and highs while the sub covers deeper bass for a fuller sound. |
| Louder sound | Properly matched speakers and amplifier integration can improve volume and reduce distortion. Verify factory amp and premium system integration before adding aftermarket amplifiers. | Higher output only works well when the speakers and amplifier are matched correctly. Checking the existing audio package first helps avoid integration issues and keeps the system clean when you want more volume. |
| Budget improvement | Replace the front door speakers first with same-size replacement speakers with correct mounting brackets. | Front door speakers are the most-used part of the system, so upgrading them first gives a noticeable improvement without spending on the entire vehicle. This is a practical way to refresh sound quality while keeping the rest of the system in place. |
| Factory look | Use same-size replacement speakers with the correct mounting brackets and harness adapters for a clean install that preserves the factory wiring and appearance. | This approach keeps the cabin looking original while improving worn or weak speakers. Using the proper brackets and harness adapters helps maintain the factory layout and reduces the need for visible changes. |
Mounting Adapters and Wiring
The same nominal diameter does not guarantee a direct mount. Before ordering, confirm:
- Speaker depth: Aftermarket speakers often have larger magnets – measure available depth at each location.
- Mounting brackets: Door locations typically need a bracket or spacer to clear the window regulator and achieve correct mounting depth.
- Wiring harness adapters: Use a plug-and-play harness adapter to preserve factory wiring.
- Tweeter mounting cups: Replacing OEM tweeters may require surface-mount cups or brackets depending on the location.
- Factory or premium amplified systems: If the vehicle has a premium or factory-amplified audio system, confirm how the factory radio, amplifier, and speakers are connected before adding aftermarket amplifiers. Depending on the setup, a line output converter, DSP, integration harness, or professional installation may be needed.
- Connector type: Factory connectors vary by trim and model year – confirm compatibility before splicing or using an adapter.
Frequently Asked Questions
What size are the front door speakers in a 2011 Subaru Forester?
The front door speakers are 6.5-inch full-range units. Front tweeters are also listed for this model if equipped, so the exact setup can vary by trim and audio package.
What size are the rear door speakers in a 2011 Subaru Forester?
The rear door speakers are 6.5-inch full-range units. Some audio setups may also include front tweeters if equipped, depending on trim and factory audio package.
Does the 2011 Subaru Forester have a factory subwoofer?
A factory subwoofer is not listed in the available data. If you are checking a specific trim or audio package, it is best to verify the equipment before choosing upgrades.
Do I need mounting adapters to replace the speakers?
Mounting adapters may be needed depending on the speaker you choose and the factory opening. The vehicle uses 6.5-inch front and rear door speakers, so fitment should be confirmed before purchase.
Can I replace the speakers without replacing the radio?
Yes, speaker upgrades can be done without replacing the radio in many cases. The best results depend on the trim, factory wiring, and whether the vehicle has the optional audio equipment.
Does the 2011 Subaru Forester have a factory amplifier?
Factory amplifier details should be verified by trim and audio package. The available data shows it is present on some trims, while other trims list it as optional or not specified.