2007 Subaru Legacy Speaker Sizes and Audio System Guide
2007 Subaru Legacy Speaker Sizes and Audio System Guide
This page covers the factory speaker layout and upgrade notes for the 2007 Subaru Legacy. Equipment can vary by trim, body style, or audio package, so the details here are meant to help you confirm what is in your vehicle before shopping for replacements. Factory amplifier details should be verified by trim and audio package, and selected audio systems may also include additional equipment if equipped.
Data verified by Nick Marchenko, PhD
Speaker Size Chart – 2007 Subaru Legacy
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 2007 Subaru Legacy
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 – 2007 Subaru Legacy
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 |
|---|---|---|---|---|
| 2.5GT Limited 4dr Sedan | 6 | 100W | – | – |
| 2.5GT Limited 4dr Wagon | 6 | 100W | – | – |
| 2.5GT spec.B 4dr Sedan | 6 | 100W | – | – |
| 2.5i 4dr Sedan | 6 | 100W | – | – |
| 2.5i 4dr Wagon | 6 | 100W | – | – |
| 2.5i Limited 4dr Sedan | 6 | 100W | – | – |
| 2.5i Limited 4dr Wagon | 6 | 100W | – | – |
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 2007 Subaru Legacy uses the same core speaker layout across the model data, with 6.5-inch full-range speakers in the front and rear doors. Because body-style-specific speaker data is not listed, rear audio placement and factory audio packages may vary by configuration. Factory amplifier details should be verified by trim and audio package.
What Speakers Fit the 2007 Subaru Legacy?
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. For the 2007 Subaru Legacy, the listed factory locations are 6.5-inch full-range speakers in the front and rear doors, so matching the size is only the first step. Factory amplifier details should be verified by trim and audio package, since equipment can vary.
Usually Safe Upgrades
- If your vehicle uses this location, a 6.5-inch full-range replacement is the starting point for the front door speakers.
- If your vehicle uses this location, a 6.5-inch full-range replacement is also the starting point for the rear door speakers.
- If your vehicle has an audio package with factory amplification, choose speakers that work well with amplified systems and confirm power handling before buying.
- If your vehicle has a premium audio setup, keep the original speaker location and connector style in mind when comparing options.
Check Before Buying
- Confirm the speaker location and size before ordering, since the factory data lists 6.5-inch full-range speakers in both door positions.
- Measure mounting depth and check for any bracket or adapter needs so the replacement clears the door panel and window hardware.
- Verify connector type and wiring so the new speakers can be matched to the factory harness correctly.
- Check whether your trim has factory amplification, because speaker choice can change when the system is amplified.
- If you are comparing upgrades, use the exact trim and audio package details, since equipment can vary.
Installation Notes
The 2007 Subaru Legacy uses 6.5-inch full-range speakers in the front and rear doors, and trim equipment can vary. Factory amplifier details should be verified by trim and audio package, since some trims list a 100W amplified system. Start by removing the door panels carefully and keeping track of clips and fasteners so the trim is not damaged. Before disconnecting anything, confirm the speaker wiring and polarity, then test the new speakers with the radio at low volume. Speaker depth should be checked before ordering, especially if you are upgrading to a larger magnet or a speaker with a deeper basket. Mounting adapters may be needed to match the factory opening, and harness adapters can help avoid cutting the original wiring. If your vehicle has the factory subwoofer, plan the upgrade around the existing bass system so the new speakers and amp settings work together. Take your time with reassembly and verify that each door panel seats correctly and rattles are eliminated.
This is a moderate installation that is manageable for a careful DIY installer, but trim removal, wiring checks, and fitment verification should be handled cautiously.
Common Mistakes When Replacing Speakers
When shopping for a 2007 Subaru Legacy audio upgrade, the biggest errors usually come from assuming every trim and audio package is the same.
- Buying based only on the body-style label instead of checking actual speaker locations on the vehicle.
- Ignoring trim and audio package differences, since factory amplifier details should be verified by trim and audio package and the speaker count can vary by setup.
- Choosing speakers without checking mounting depth and connector style, which can lead to fitment problems even when the size looks correct on paper.
- Assuming tweeters are part of every setup, when they are not listed here; if equipped, they should be identified before ordering replacement parts.
- Skipping a test fit and audio test before reassembly, which can leave you with wiring issues or a speaker that does not seat correctly.
- Overlooking the rear and front door locations and replacing only one end of the system, even though the listed factory speaker layout uses 6.5-inch full-range speakers in both door locations.
Generation & Model Family
The 2007 Subaru Legacy belongs to the Fourth generation (BL) (2005–2007) 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
This 2007 Subaru Legacy uses a straightforward factory speaker layout, but equipment can vary by trim and audio package. A smart upgrade plan starts with the front stage, then moves to bass, volume, and appearance goals based on how you listen. Factory amplifier details should be verified by trim and audio package before choosing amplification upgrades.
| Goal | Best Upgrade Path | Why |
|---|---|---|
| Better clarity | Upgrade the front door speakers first, then add tweeters if equipped or if your chosen audio package supports a front-stage upgrade. Focus on cleaner mids and highs before moving to the rear speakers. | The front stage has the biggest impact on detail and imaging, so improving it usually gives the clearest jump in sound quality. |
| More bass | Add a subwoofer to complement the factory speakers and keep the low end separate from the door speakers. If the vehicle has a factory bass system in a specific trim, plan carefully around that setup before adding aftermarket bass equipment. | A dedicated subwoofer handles low frequencies better than door speakers alone, which gives fuller bass without forcing the rest of the system to work harder. |
| 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, then build around the system layout that is actually in the car. | Higher output only helps when the speakers and amplification are matched correctly, and integration matters when factory audio equipment is part of the system. |
| Budget improvement | Replace the front door speakers first with same-size replacement speakers with correct mounting brackets, then upgrade the rear speakers later if you want more balance. | The front doors carry the most important everyday sound, so this approach gives the best improvement for the money. |
| 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 keeps the interior looking original while still improving sound quality and making future service easier. |
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 2007 Subaru Legacy?
The front door speakers are 6.5-inch full-range units. This applies to the 2007 Legacy data provided for the fourth-generation BL model.
What size are the rear door speakers in a 2007 Subaru Legacy?
The rear door speakers are 6.5-inch full-range units. The provided data shows the same size for the rear doors across this model year.
Does the 2007 Subaru Legacy have a factory subwoofer?
A factory subwoofer is not listed in the data provided. If your car has one, it would depend on the audio package or trim.
Do I need mounting adapters to replace the speakers?
Mounting adapters may be needed depending on the replacement speaker design and the vehicle’s factory openings. The provided data confirms 6.5-inch front and rear door locations, but fitment details should still be checked.
Can I replace the speakers without replacing the radio?
Yes, speaker replacement can be done without replacing the radio. The factory radio can stay in place as long as the new speakers are matched correctly to the vehicle and audio setup.
Does the 2007 Subaru Legacy have a factory amplifier?
Factory amplifier details should be verified by trim and audio package. The data shows a 100W amplifier on some trims, so equipment can vary.