2009 Subaru Impreza Speaker Sizes and Audio System Guide
2009 Subaru Impreza Speaker Sizes and Audio System Guide
This page covers the 2009 Subaru Impreza’s factory speaker layout, common speaker locations, and the key details to check before planning an upgrade. Equipment can vary by trim, body style, and audio package, and factory amplifier details should be verified by trim and audio package. Use the fitment notes here to compare your vehicle’s audio setup and identify what may need attention during a speaker upgrade.
Data verified by Nick Marchenko, PhD
Speaker Size Chart – 2009 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 2009 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 – 2009 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 |
|---|---|---|---|---|
| 2.5 GT 4dr All-wheel Drive Hatchback | 10 | opt | – | – |
| 2.5GT 4dr All-wheel Drive Sedan | 10 | opt | – | – |
| 2.5i 4dr All-wheel Drive Hatchback | 4 | opt | – | – |
| 2.5i 4dr All-wheel Drive Sedan | 4 | opt | – | – |
| WRX 4dr All-wheel Drive Hatchback | 4 | opt | – | – |
| WRX 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
The 2009 Subaru Impreza uses the same core speaker layout across the model data we have, with 6.5-inch full-range speakers in the front and rear doors. Because body-style-specific audio data is not listed, equipment can vary by trim and audio package, and factory amplifier details should be verified by trim.
What Speakers Fit the 2009 Subaru Impreza?
Aftermarket fitment should start with the factory speaker locations listed above, but diameter alone is not enough. Check mounting depth, bracket fit, and connector type before ordering. This Impreza also has trim-dependent audio equipment, so factory amplifier details should be verified by trim and audio package. The listed 6.5 inch door speakers give you the starting point, but some systems may need additional parts or wiring changes depending on the original setup.
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 audio system is one of the higher-output trims, verify speaker count and amplifier details before choosing replacements.
- If your vehicle uses the factory door speaker locations, component-style upgrades may be possible if the mounting space and wiring support them.
Check Before Buying
- Confirm the speaker location and factory size before ordering, since the front and rear door openings are both listed as 6.5 inch.
- Measure mounting depth and check the factory bracket style so the new speaker will physically fit.
- Verify the connector type at each door, especially if the vehicle has a trim-dependent audio package.
- Factory amplifier details should be verified by trim and audio package because the equipment can vary.
- If you are replacing a system with more speakers, match the new setup to the original audio configuration rather than the base speaker count alone.
Installation Notes
The 2009 Subaru Impreza uses 6.5-inch full-range speakers in the front and rear doors, so most upgrades start with careful panel removal and a check of the factory opening before ordering parts. Speaker count can vary by trim, with some systems listed at 4 speakers and others at 10, so verify the audio package and factory amplifier details before you begin. Use the correct harness adapters to avoid cutting factory wiring, and confirm polarity during installation so the new speakers play correctly. Speaker depth should be checked against the door cavity, especially if you are choosing larger magnets or a deeper basket design. Mounting adapters may be needed to match the factory door openings and keep the speaker secure. If your vehicle has the factory subwoofer, plan the upgrade around that system as well. After everything is installed, test balance, fade, and all channels before reassembling the panels.
Moderate difficulty, since trim and audio package differences can affect speaker count, wiring, and amplifier integration.
Common Mistakes When Replacing Speakers
The biggest audio upgrade mistakes on the 2009 Subaru Impreza usually happen when buyers assume every version uses the same speaker layout or factory audio package.
- 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 10 and factory amplifier details should be verified by trim and audio package.
- Choosing speakers without checking mounting depth and connector style, which can cause fitment problems even when the size looks correct on paper.
- Assuming tweeters are part of every setup; this model does not list tweeters, so any tweeter-related parts should only be considered if equipped on a specific audio package.
- Skipping a test fit and sound check before reassembly, which can leave you with loose panels, reversed polarity, or a speaker that does not play correctly.
- Overlooking factory radio and navigation variations, since those systems can affect wiring, signal routing, and the parts needed for a clean upgrade.
Generation & Model Family
The 2009 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 2009 Subaru Impreza uses a simple factory speaker layout, but equipment can vary by trim and audio package. Some versions also include an optional factory amplifier, so it is worth verifying the exact system before choosing upgrades. A smart upgrade path depends on whether you want clearer vocals, more low-end impact, higher output, or a clean factory-style refresh.
| Goal | Best Upgrade Path | Why |
|---|---|---|
| Better clarity | Start with the front door speakers and add upgraded front-stage tweeters if equipped or if your chosen system uses them. Focus on higher-quality speakers that improve midrange detail and high-frequency response without changing the rest of the system right away. | The front stage carries most of the sound you hear while driving, so improving it first usually gives the biggest jump in clarity and vocal detail. |
| More bass | Add an aftermarket subwoofer to complement the factory speakers and keep the low bass duties separate from the door speakers. If the vehicle has a factory subwoofer in a higher audio package, verify how it is integrated before planning the upgrade. | Door speakers can only do so much in the low end, and a dedicated subwoofer is the most effective way to add deeper bass and reduce strain on the rest of the system. |
| Louder sound | Use properly matched speakers and amplifier integration to improve volume and reduce distortion. Factory amplifier details should be verified by trim and audio package before adding aftermarket amplifiers or changing the signal path. | Higher output only helps when the speakers and amplification are matched correctly, and checking the factory system first helps avoid integration problems. |
| Budget improvement | Replace the front door speakers first with same-size replacement speakers using the correct mounting brackets. This gives the most noticeable improvement for the money because the front speakers handle the majority of daily listening. | A front-speaker-first approach keeps costs down while improving the part of the system you hear most often. |
| 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 allowing a meaningful audio upgrade. |
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 2009 Subaru Impreza?
The front door speakers are 6.5-inch full-range units. Speaker counts vary by trim, so it is worth checking the audio package before ordering parts.
What size are the rear door speakers?
The rear door speakers are also 6.5-inch full-range units. This applies to the model data provided for this generation, while overall audio equipment can vary by trim.
Does the 2009 Subaru Impreza have a factory subwoofer?
A factory subwoofer is not listed in the provided data. If equipped on a specific audio package, it should be verified by trim and factory system details.
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 data confirms 6.5-inch front and rear locations, but fitment details should still be checked before buying.
Can I replace the speakers without replacing the radio?
Yes, speaker replacement can be done without changing the radio in many setups. Since factory audio equipment can vary by trim, confirm the system before choosing new speakers.
Does the 2009 Subaru Impreza have a factory amplifier?
Factory amplifier details should be verified by trim and audio package. The provided data shows it is present on some trims, but it is not universal across the model.