Variants
Provides noticeably better clarity and treble over factory speakers at a reasonable price, but several reviewers had to modify mounts, wiring, or add a sub/amp for fuller bass.
Buyer confidence
88%Highlights
- Mica-injected polypropylene cone
- Foam surround
- 1/2" (13mm) Mylar® balanced dome
- Stamped steel basket
Key specs
Full specs- Tweeter Mounting Depth
- 1.06" (26.88 mm)
- Speaker Type
- Component System
- Midrange Mounting Depth
- 1.97" (50.1 mm)
- Tweeter Size (Nominal Diameter)
- 1.0" (25.4mm)
- Midrange Size (Nominal Diameter)
- 6.5"
- Power Handling (RMS)
- 40 Watts RMS 80 Watts Max
- Mounting Hardware
- Yes
- Shipping Weight
- 5 Lbs. (2.26 kg)
Key specs
Full specs- Tweeter Mounting Depth
- 1.06" (26.88 mm)
- Speaker Type
- Component System
- Midrange Mounting Depth
- 1.97" (50.1 mm)
- Tweeter Size (Nominal Diameter)
- 1.0" (25.4mm)
Highlights
Overview- Mica-injected polypropylene cone
- Foam surround
- 1/2" (13mm) Mylar® balanced dome
Review highlights
Based on customer reviewsClear, budget-friendly upgrade that may need fitting work
Provides noticeably better clarity and treble over factory speakers at a reasonable price, but several reviewers had to modify mounts, wiring, or add a sub/amp for fuller bass.
What buyers praise
- Much clearer highs and improved midrange compared with stock speakers
- Well balanced sound and crisp tweeters
What to watch for
- Speaker diameter and fit can differ from factory openings — measure and check fitment
Overview
The Rockford Fosgate Prime R165-S is a 6.5" 2-way component car speaker system designed as a next-generation factory replacement with focused clarity and adaptable mounting options.
Best for
- Factory replacement upgrades
- Improving midbass and high-frequency clarity
- Applications where compact component speakers are needed
Key points
- 6.5" 2-way component design
- 40 watts RMS power rating
- Mica-injected polypropylene woofer cone for extended frequency response
- Mylar balanced-dome tweeter for clear highs
- Integrated in-line crossovers to simplify wiring
- Tweeter supports flush, surface and angle mounting
Fit and use
Designed to accommodate direct OEM installation in compatible factory locations. Tweeters can be mounted flush, on the surface, or at an angle to suit different installations. Match system power handling to the amplifier's RMS output for reliable performance.
What to know
Rated at 40 watts RMS—verify speaker size and mounting depth for your vehicle before purchasing. The kit includes the woofers, grilles, tweeters with in-line crossovers and mounting hardware and is sold as a pair. Meets CEA-2031 testing guidelines.
Key features
- Mica-injected polypropylene cone
- Foam surround
- 1/2" (13mm) Mylar® balanced dome
- Stamped steel basket
- Sold in pairs (2 each)
- 1 Year Warranty
- CEA-2031
Technologies

CEA-2031
Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards. This means your speaker has
Specs
Specifications
| Tweeter Mounting Depth | 1.06" (26.88 mm) |
| Speaker Type | Component System |
| Midrange Mounting Depth | 1.97" (50.1 mm) |
| Tweeter Size (Nominal Diameter) | 1.0" (25.4mm) |
| Midrange Size (Nominal Diameter) | 6.5" |
| Power Handling (RMS) | 40 Watts RMS 80 Watts Max |
| Mounting Hardware | Yes |
| Shipping Weight | 5 Lbs. (2.26 kg) |
| Grille/Trim Ring Included | Yes |
| Frequency Response (Hz) | 60Hz - 20kHz |
| Crossover | Tweeter High-Pass (HP): 12kHz @ 6dB/octave |
| Nominal Impedance (Ohms) | 4-Ohm |
| Sensitivity (dB @ 1W/1M) | 89 |
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