2015 Subaru Impreza Speaker Sizes and Audio System Guide
2015 Subaru Impreza Speaker Sizes and Audio System Guide
This page covers the factory speaker layout for the 2015 Subaru Impreza, along with the key upgrade notes you need before shopping for replacements. Equipment can vary by trim, body style, or audio package, so speaker count and factory audio features are not the same across every version. Use the details here to match your vehicle’s speaker locations and verify the system configuration before choosing new parts.
Data verified by Nick Marchenko, PhD
Speaker Size Chart – 2015 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 2015 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 – 2015 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 |
|---|---|---|---|---|
| 2.0i Limited 4dr All-wheel Drive Hatchback | 6 | 100W | AM/FM/HD, seek-scan | – |
| 2.0i Limited 4dr All-wheel Drive Sedan | 6 | opt | AM/FM/HD, seek-scan | ✓ |
| 2.0i Premium 4dr All-wheel Drive Hatchback | 6 | 100W | AM/FM/HD, seek-scan | – |
| 2.0i Premium 4dr All-wheel Drive Sedan | 6 | opt | AM/FM/HD, seek-scan | – |
| 2.0i Sport Limited 4dr All-wheel Drive Hatchback | 6 | 100W | AM/FM/HD, seek-scan | ✓ |
| 2.0i Sport Premium 4dr All-wheel Drive Hatchback | 6 | 100W | AM/FM/HD, seek-scan | – |
| 2.0i 4dr All-wheel Drive Hatchback | 4 | 100W | AM/FM/HD, seek-scan | – |
| 2.0i 4dr All-wheel Drive Sedan | 4 | opt | AM/FM/HD, seek-scan | – |
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 2015 Subaru Impreza uses the same basic 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 speaker data is not listed, equipment can vary by configuration, and factory amplifier details should be verified by trim and audio package.
What Speakers Fit the 2015 Subaru Impreza?
Aftermarket fitment should start with the factory speaker locations listed above, but diameter alone is not enough. For this 2015 Subaru Impreza, the listed front and rear door speakers are 6.5 inch full-range units, while speaker count can vary by trim. Factory amplifier details should be verified by trim and audio package, since some versions are equipped differently. Check mounting depth, bracket fit, and connector type before choosing replacements.
Usually Safe Upgrades
- If your vehicle uses the front door 6.5 inch full-range location, a matching 6.5 inch aftermarket speaker is the most straightforward starting point.
- If your vehicle uses the rear door 6.5 inch full-range location, a 6.5 inch replacement can work well when the mounting depth and connector style are confirmed.
- If your trim uses a 6-speaker audio setup, verify whether the system is factory-amplified before selecting new speakers.
- If your trim uses a 4-speaker audio setup, confirm the exact door locations before ordering, since equipment can vary by trim.
Check Before Buying
- Confirm the speaker location and size at each door before ordering, even when the listed size is 6.5 inch.
- Measure mounting depth and check for any factory bracket or adapter requirements.
- Verify the connector type so the new speaker can be wired correctly.
- Check whether your trim has a factory amplifier, since audio package differences can affect speaker selection.
Installation Notes
The 2015 Subaru Impreza uses 6.5-inch full-range speakers in the front and rear doors, and the factory speaker count can range from 4 to 6 depending on trim and audio package. Before starting, verify the trim-specific audio setup because factory amplifier details should be checked by trim and audio package. Door panel removal is usually the first step, and it should be done carefully to avoid breaking clips or damaging the trim. Check speaker depth before ordering parts, since clearance can affect fitment behind the door panel and window hardware. Mounting adapters may be needed to secure aftermarket speakers properly, and harness adapters can help keep the factory wiring intact. If your vehicle has the factory subwoofer, plan the upgrade around the existing bass system and confirm signal routing before installation. Always test speaker polarity, balance, and fade before reassembling the doors so any wiring issue can be corrected early. Tweeter-equipped audio systems may also require additional attention if you are upgrading beyond the door speakers.
Moderate difficulty; careful panel removal, wiring verification, and depth checks are important before final assembly.
Common Mistakes When Replacing Speakers
When shopping for speakers or planning an upgrade on the 2015 Subaru Impreza, the biggest errors usually come from assuming every trim is wired the same and skipping a few basic fit checks.
- Buying based only on the body-style label instead of checking actual speaker locations on the vehicle. The data shows front and rear 6.5-inch full-range door speakers, but speaker count still changes by trim, so verify the exact setup before ordering.
- Ignoring trim and audio-package differences. Factory amplifier details should be verified by trim and audio package, since some trims list a 100W amplifier while others show optional amplification.
- Assuming every version has the same speaker count. This model ranges from 4 to 6 speakers depending on trim, so match the replacement plan to the vehicle’s actual audio system instead of the headline model name.
- Skipping mounting-depth and connector checks before buying. Even when the speaker size is correct, you still need to confirm depth, connector style, and adapter requirements against the vehicle’s existing hardware.
- Forgetting to check for tweeters if equipped. This model does not list tweeters in the base speaker data, but if a specific audio package includes them, they need to be identified before choosing replacement parts.
- Reassembling the door panels before testing the system. Always test each speaker for sound, balance, and polarity first so you can catch wiring or fitment issues while everything is still accessible.
Generation & Model Family
The 2015 Subaru Impreza belongs to the Fourth generation (GJ) - Facelift (2015–2016) 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 2015 Subaru Impreza uses 4 to 6 speakers depending on trim, and equipment can vary by audio package. Front and rear door speaker locations are confirmed in the vehicle data, while factory amplifier details should be verified by trim and audio package. That makes the front stage the best place to start for most buyers, with upgrade choices shaped by budget, output goals, and how closely you want to keep the factory system feel.
| Goal | Best Upgrade Path | Why |
|---|---|---|
| Better clarity | Start with the front door speakers and, if equipped, upgrade the front stage with better-quality tweeters or a component-style setup that improves midrange detail and high-frequency clarity. | Clarity gains usually come from the front of the cabin first, where most of the music is heard. A stronger front stage helps vocals, instruments, and stereo imaging sound cleaner without needing a full-system overhaul. |
| More bass | Add an aftermarket subwoofer to complement the factory speakers and fill in the low end that door speakers cannot fully cover. | A subwoofer is the most effective way to add real bass impact. It lets the door speakers handle mids and highs while the sub focuses on low frequencies for a fuller sound. |
| Louder sound | Properly matched speakers and amplifier integration can improve volume and reduce distortion. Verify factory amp or premium-system integration before adding aftermarket amplifiers. | Higher output only works well when the speakers and amplification are matched correctly. Checking the existing audio setup first helps avoid integration problems and keeps the system sounding clean at higher volume. |
| Budget improvement | Replace the front door speakers first with same-size replacement speakers and the correct mounting brackets. | The front doors carry the most important part of the sound. Starting there gives the biggest improvement per dollar, especially when you want a noticeable upgrade without changing 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 cabin looking original while still improving sound quality. It also helps the upgrade blend in with the existing interior and reduces the need for visible modifications. |
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 the 2015 Subaru Impreza?
The front door speakers are 6.5-inch full-range units. This size is listed directly for the 2015 Impreza and applies to the front door locations shown in the data.
What size are the rear door speakers?
The rear door speakers are also 6.5-inch full-range units. That gives the 2015 Impreza matching front and rear door speaker sizes in the listed factory layout.
Does the 2015 Subaru Impreza have a factory subwoofer?
A factory subwoofer is not listed in the provided data. If your vehicle has one, it would depend on the specific audio package or trim.
Do I need mounting adapters to replace the factory speakers?
Mounting adapters may be needed depending on the replacement speaker design and the factory opening. The vehicle data confirms the speaker sizes, but fitment details should still be checked before ordering parts.
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 while you upgrade the door speakers, as long as the new speakers match the vehicle setup.
Does the 2015 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, while other trims list it as optional.