Pioneer TS-A879 3.5" 2- Coaxial Way Speakers (Pair)
If your old 3½" speakers sound thin, muddy, or just worn out, the Pioneer TS-A879 is one of the easiest upgrades you can make. It's built to be a direct fit replacement for small factory speaker spots — no cutting, no adapters, no guesswork.
Each speaker pairs a carbon and mica reinforced woofer cone with a 25mm dome tweeter on a neodymium magnet. Pioneer tunes the two together using its OPEN & SMOOTH sound approach, so the switch from woofer to tweeter feels natural instead of harsh or disjointed.
A built-in crossover with an 850 Hz filter protects the tweeter and woofer from low-frequency strain, so sound stays clean even when you turn things up.
Handling 450 watts peak power (100 watts RMS) per pair, the TS-A879 sounds noticeably louder and clearer than a tired factory speaker — and it's efficient enough (85 dB sensitivity) to sound good on a stock setup, with room to grow if you add power later.
Why upgrade to the TS-A879?
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Clearer sound right away — voices and details come through sharper than stock speakers.
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True direct fit — built specifically for tight 3½" openings.
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Made to last — the rubber surround and reinforced cone hold up to heat, moisture, and vibration.
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Simple install — most people finish the swap in under an hour with basic tools.
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Sounds good together — part of Pioneer's A-Series line, tuned to match other A-Series speakers.
Key Specs
| Spec |
Detail |
| Speaker Type |
2-way |
| Size |
3-1/2" (3.5") |
| Peak Power |
450W (per pair) |
| RMS (Continuous) Power |
100W (per pair) |
| Sensitivity |
85 dB |
| Frequency Response |
52 Hz – 33 kHz |
| Impedance |
4 ohms |
| Tweeter |
25mm dome, neodymium magnet |
| Woofer Cone |
Carbon & mica reinforced |
| Crossover |
Built-in, 850 Hz filter |
| Compliance |
CTA2031 |
| Color |
Black |
| Quantity |
Sold as a pair
|
Frequently Asked Questions
Q: What size openings does the Pioneer TS-A879 fit?
A: The TS-A879 is a 3.5" (3½") speaker, built to directly replace factory 2¾"–3½" speakers found in many cars.
Q: Is the Pioneer TS-A879 a full-range speaker?
A: No — it's a 2-way speaker with a separate woofer and tweeter, plus a built-in 850 Hz filter, which gives cleaner sound than a single-cone speaker.
Q: How many watts can the TS-A879 handle?
A: Each pair handles up to 450 watts of peak power and 100 watts RMS (continuous).
Q: Does the Pioneer TS-A879 need extra power to sound good?
A: No. It's efficient enough (85 dB sensitivity) to sound good on a stock setup, though it will get louder and clearer if you add power later.
Q: What's included with the Pioneer TS-A879?
A: The pair comes with speaker wire leads that include the built-in filter, plus the two speakers themselves. Mounting hardware and connectors can vary by seller, so check what's included before you buy.
Q: Will the TS-A879 fit without an adapter?
A: The depth is built to match many factory spots, but connectors can vary. Some installs need a splice to the factory wiring or a Pioneer adapter, since the factory plug isn't included on the speaker.
Q: What is the frequency response of the TS-A879?
A: 52 Hz to 33 kHz.
Q: What's the difference between the TS-A879 and the TS-A709?
A: Both are compact, direct-fit speakers from Pioneer's A-Series line, sized for similar small openings and tuned with the same smooth sound approach. Still, it's worth checking the exact depth and mounting against your factory speaker before choosing one.
Q: Are these speakers a factory replacement or an upgrade?
A: Both — they're built to physically fit the factory spot while giving you noticeably better clarity and power than the original speaker.
Q: What color are the Pioneer TS-A879 speakers?
A: Black.
Quick takeaway
Pick the TS-A879 if you have small, 3.5"-size factory openings (common in dash corners). Only move up to the TS-A1680F or TS-A6971F if your factory spots are physically bigger — the TS-A879 won't fit 6.5" or 6x9" openings.
