2011 Subaru Impreza Speaker Sizes and Audio System Guide
2011 Subaru Impreza Speaker Sizes and Audio System Guide
This page covers the factory speaker layout, common upgrade notes, and the audio equipment differences for the 2011 Subaru Impreza. Speaker count and factory audio features can vary by trim, body style, and audio package, so the details here help narrow down what your vehicle may have before you shop for replacements or upgrades. Factory amplifier details should be verified by trim and audio package.
Data verified by Nick Marchenko, PhD
Speaker Size Chart – 2011 Subaru Impreza
Use this table as the main reference. Fitment depends on trim, factory audio package, mounting depth, and adapter availability.
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 Impreza
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 Impreza
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 |
|---|---|---|---|---|
| 2.5i Premium 4dr All-wheel Drive Hatchback | 6 | opt | – | – |
| 2.5i Premium 4dr All-wheel Drive Sedan | 6 | opt | – | – |
| WRX 4dr All-wheel Drive Hatchback | 6 | – | – | – |
| WRX 4dr All-wheel Drive Sedan | 6 | – | – | – |
| WRX Limited 4dr All-wheel Drive Hatchback | 6 | opt | – | – |
| WRX Limited 4dr All-wheel Drive Sedan | 6 | opt | – | – |
| WRX Premium 4dr All-wheel Drive Hatchback | 6 | opt | – | – |
| WRX Premium 4dr All-wheel Drive Sedan | 6 | opt | – | – |
| 2.5i 4dr All-wheel Drive Hatchback | 4 | opt | – | – |
| 2.5i 4dr All-wheel Drive Sedan | 4 | opt | – | – |
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.
Body Style Audio Differences
This 2011 Subaru Impreza uses the same core speaker layout across the available body styles, with 6.5-inch full-range speakers in the front and rear doors. Factory audio equipment can vary by trim and package, so speaker count and amplifier details should be verified before planning upgrades.
What Speakers Fit the 2011 Subaru Impreza?
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. This 2011 Subaru Impreza uses 6.5-inch full-range speakers in the front and rear doors, while speaker count can vary by trim and audio package. Factory amplifier details should be verified by trim and audio package before choosing replacement speakers.
Usually Safe Upgrades
- If your vehicle uses this location, a 6.5-inch full-range speaker is the starting point for the front door openings.
- If your vehicle uses this location, a 6.5-inch full-range speaker is also the starting point for the rear door openings.
- If your vehicle has a 4-speaker setup, focus on replacing the door speakers with the correct size and connector match.
- If your vehicle has a 6-speaker setup, selected audio systems may also include additional speakers, so verify the full audio layout before ordering.
Check Before Buying
- Confirm the speaker location and size for your specific trim before buying, since speaker count can vary from 4 to 6.
- Measure mounting depth and check the factory bracket shape so the new speaker will clear the door panel.
- Verify the connector type and wiring style, especially if the vehicle has a factory amplifier on some trims.
- Check whether your audio system uses any additional speakers beyond the front and rear door locations listed here.
Installation Notes
The 2011 Subaru Impreza uses 6.5-inch full-range speakers in the front and rear doors, and the factory speaker count can vary by trim from 4 to 6 speakers. Panel removal should be done carefully so clips, trim pieces, and switch wiring are not damaged. Before ordering speakers, verify mounting depth and overall clearance, since door space can be limited and some aftermarket speakers may need mounting adapters or spacer rings. A wiring harness adapter is recommended so the factory wiring does not need to be cut, and it also makes future service easier. Factory amplifier details should be verified by trim and audio package, because some trims list an optional amplifier while others do not. If your vehicle has the factory subwoofer, plan the upgrade around that equipment as well. After installation, test balance, fade, and all speaker locations before fully reassembling the doors.
Moderate difficulty, mainly because careful panel removal, wiring checks, and depth/adapter fitment matter.
Common Mistakes When Replacing Speakers
When shopping for speakers for this 2011 Subaru Impreza, the biggest errors usually come from assuming every car is wired the same and skipping a few fitment checks first.
- Buying based only on the body-style label instead of checking actual speaker locations on the vehicle.
- Assuming every trim uses the same audio setup when speaker count can be 4 or 6 and amplifier details should be verified by trim and audio package.
- Ignoring mounting depth and overall speaker clearance, which can cause a new speaker to interfere with the door panel or window hardware.
- Overlooking connector style and wiring compatibility, which can turn a simple speaker swap into a wiring problem.
- Forgetting to confirm whether the vehicle has tweeters or a factory subwoofer if equipped, since those pieces can change how the system is laid out.
- Reassembling the door panels before testing each speaker, which can hide wiring or polarity issues until everything is already back together.
Generation & Model Family
The 2011 Subaru Impreza belongs to the Third generation (GE/GV) (2008–2011) 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 Impreza uses a simple factory speaker layout, and equipment can vary by trim and audio package. That makes it a good candidate for staged upgrades, whether you want cleaner sound, more output, or a subtle refresh. Start with the front stage if you want the biggest everyday improvement, then add bass or amplification as your budget allows.
| Goal | Best Upgrade Path | Why |
|---|---|---|
| Better clarity | Upgrade the front door speakers first, then add front tweeters if equipped or build a front-stage-focused setup with quality component speakers and proper crossovers. | The front speakers do most of the work for vocals and detail, so improving them gives the clearest jump in midrange and high-frequency definition. |
| More bass | Add an aftermarket subwoofer system to complement the factory speakers and keep the low end separate from the door speakers. | A dedicated subwoofer handles deep bass more effectively than full-range door speakers, which helps reduce strain and improves low-frequency impact. |
| Louder sound | Use properly matched speakers and amplifier integration to improve volume and reduce distortion, and verify factory amp or premium system integration before adding aftermarket amplifiers. | Higher output only helps when the speakers and amplification are matched correctly, and checking the existing audio package first helps avoid integration problems. |
| Budget improvement | Replace the front door speakers first with same-size replacement speakers and the correct mounting brackets. | The front doors are the most-used speakers in daily driving, so this gives the best value when you want a noticeable upgrade without replacing the whole system. |
| 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 interior looking original while still improving sound, and it avoids unnecessary changes to the vehicle’s wiring or trim. |
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 Impreza?
The front door speakers are 6.5-inch full-range units. That size is listed directly for this model year, so it is the main front door fitment to plan around.
What size are the rear door speakers?
The rear door speakers are also 6.5-inch full-range units. That gives the Impreza matching front and rear door speaker sizes in the direct model data.
Does the 2011 Subaru Impreza have a factory subwoofer?
A factory subwoofer is not listed in the model data. If equipped on a specific audio package, it should be verified by trim and audio system before ordering parts.
Do I need mounting adapters for speaker replacement?
Mounting adapters may be needed depending on the speaker brand and installation depth. The vehicle data confirms the speaker sizes, but adapter choice should be matched to the exact replacement speaker.
Can I replace the speakers without replacing the radio?
Yes, speaker replacement can be done without replacing the radio. The trim data shows factory radio and navigation equipment can vary, so the speaker upgrade can be planned around the existing head unit.
Does the 2011 Subaru Impreza have a factory amplifier?
Factory amplifier details should be verified by trim and audio package. The data shows it is present on some trims and optional on others, so it is not the same across every Impreza.