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5.25-inch speakers fit many compact cars and some rear positions. Confirm your vehicle before buying.
This guide is built from Amazon product listings, not our own testing, so confirm specs on each product page.
Last updated: October 30, 2026.
Quick Picks
| Product | Type | Best for |
|---|---|---|
| Pioneer TS-501M | 5.25 4-way coaxial car speakers | 300W max |
| Kicker 43DSC504 | 5.25 2-way coaxial car speakers | D-Series, 4 ohm |
| CT Sounds BIO-5-25-COX | 5.25 coaxial car speakers | 160W max |
| BOSS Audio P55.4C | 5.25 4-way coaxial car speakers | Cheap 300W-rated pair |
Our Picks
1. Pioneer TS-501M
A 5.25-inch 4-way coaxial pair rated 300W max, per the listing. It was listed at about $48 on Amazon.com when we checked on October 30, 2026.
Good for: 5.25-inch door swaps. Strengths: 4-way design and low price. Weaknesses: Peak power is a maker figure. Skip it if you need another size.
2. Kicker 43DSC504
A 5.25-inch 2-way 4 ohm coaxial pair rated 200W, per the listing. It was listed at about $75 on Amazon.com when we checked on October 30, 2026.
Good for: Listeners who prefer a known audio brand. Strengths: Kicker D-Series. Weaknesses: Higher price. Skip it if you want the cheapest.
3. CT Sounds BIO-5-25-COX
A 5.25-inch coaxial pair rated 160W max, per the listing. It was listed at about $43 on Amazon.com when we checked on October 30, 2026.
Good for: Budget swaps. Strengths: Low price. Weaknesses: Low power rating. Skip it if you plan to use an amp.
4. BOSS Audio P55.4C
A 5.25-inch 4-way coaxial pair rated 300W, per the listing. It was listed at about $35 on Amazon.com when we checked on October 30, 2026.
Good for: The lowest price. Strengths: Low price. Weaknesses: Peak power is a maker figure. Skip it if you want a known audio brand.
How to Choose
Fitment
Check depth and mounting for your vehicle.
RMS vs peak
Compare RMS where listed.
Coaxial
Coaxials are drop-in replacements.
Do I need an amp?
Not for factory-radio use.
Component alternatives?
See our car speaker guide.
Bottom Line
For budget, the BOSS P55.4C or CT Sounds. For a brand name, the Kicker 43DSC504. For 4-way, the Pioneer TS-501M.
More Speaker Guides
- Best 4×6 Car Speakers
- Best 6.5-Inch Car Speakers
- Best 6×9 Car Speakers
- Car Speaker Buying Guide
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