Pioneer A-Series Plus TS-A1681F 6.5" 4-Way Coaxial Car Speakers 350W Max
- 6.5 inch (6-1/2) round, 4-way coaxial
- 350 watts maximum power handling
- 80 watts continuous power handling
- In-line crossover network, no outboard module
- Multi-fit adapters and tweeter mounts included
- 3.5 x 6.88 x 6.88 inches, 1.8 pounds
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A coaxial car speaker upgrade with a built-in crossover and adapters for fitting many factory openings. Impedance and sensitivity are not in the listing, so check them against your stereo.
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ASIN: B0CJPCYQQZModel: TS-A1681FCategory: Speakers
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Overview
A car owner swapping out worn factory door speakers gets a round four-way coaxial pair with mounting adapters in the box. Tweeter mounts support surface, flush and original tweeter locations, and the plastic adapter tabs can be snapped or cut to match the opening.
The reason to buy is the fitting flexibility and the crossover built into the speaker. The limit is that the listing says little about impedance, sensitivity or frequency range.
Who it's for
Think of a daily driver whose original door speakers sound dull and who wants a simple bolt-in upgrade. A builder matching speakers to a specific amplifier needs the missing electrical figures.
Pros and cons
- Multi-fit adapters included
- Built-in crossover network
- Tweeter mounting options
- Round shape for common openings
- Impedance rating is missing
- Sensitivity figure is missing
- Fit varies by vehicle
- Frequency range is absent
Performance notes
Four drivers share one coaxial frame, and the in-line crossover divides the signal between woofer and tweeters without an outboard module. Power ratings describe handling limits rather than loudness, so a head unit with modest output still sets how loud they play. Sealing the adapter and door panel affects bass response.
Specifications
| Brand | PIONEER |
|---|---|
| Model | TS-A1681F |
| Dimensions & fit | |
| Speaker Size | 6.5 inches (6-1/2) |
| Dimensions | 3.5 x 6.88 x 6.88 inches |
| Item weight | 1.8 pounds |
| Power & efficiency | |
| Maximum power handling | 350 watts |
| Continuous power handling | 80 watts |
| Construction & materials | |
| Color | Black with gold accents |
| Compatibility & installation | |
| Mounting | Multi-fit adapters, surface, flush and OE tweeter mounts |
| Other details | |
| Speaker Type | 4-way coaxial, round |
| Crossover | Integrated in-line network |
Closest rivals on specs
Frequently asked questions
How do I install the Pioneer TS-A1681F in my car?
Use the multi-fit adapters, breaking or cutting off tabs until the shape matches the original speaker, then mount the tweeters on the surface, flush or in the original locations.
Do I need an external crossover?
No. The description says the crossover network is integrated in-line, so no outboard module is needed.
Will it fit my car?
The description calls it a popular choice for many models but gives no fit list. Check a vehicle guide.
How much power can they take?
The description gives the maximum and continuous handling figures, and no impedance rating.