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Rockford Fosgate Prime R1675-SPrime 6.75" Component System (pr)

4.5244 reviewsSee all reviews

Improves mids and highs and delivers punchy midbass for a noticeable step up from stock speakers—works well on many factory head units—affordable and entry-level, but expect some tuning and fitment work in certain cars.

Buyer confidence

91%

Highlights

  • Mica-injected polypropylene cone
  • Foam surround
  • 1/2" (13mm) Mylar® balanced dome
  • Stamped steel basket

Key specs

Full specs
Speaker Type
Component System
Nominal Impedance (Ohms)
4-Ohm
Frequency Response (Hz)
55Hz - 20kHz
Tweeter Size (Nominal Diameter)
1.0" (25.4mm)
Tweeter Mounting Depth
1.06" (26.88 mm)
Crossover
Tweeter High-Pass (HP): 12kHz @ 6dB/octave
Sensitivity (dB @ 1W/1M)
89
Midrange Mounting Depth
2.0" (51.2 mm)

Key specs

Full specs
Speaker Type
Component System
Nominal Impedance (Ohms)
4-Ohm
Frequency Response (Hz)
55Hz - 20kHz
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 reviews

Clear, punchy OEM-friendly component upgrade

Improves mids and highs and delivers punchy midbass for a noticeable step up from stock speakers—works well on many factory head units—affordable and entry-level, but expect some tuning and fitment work in certain cars.

244 reviews4.5/5 averageUpdated Mar 15, 2026

What buyers praise

  • Clear, detailed highs and improved overall clarity
  • Strong midbass and punch for 6.75" drivers

What to watch for

  • Installation/fit can require trimming, new holes, different screws, or mounting creativity—tweeter pods don’t always drop into factory locations
Overview

The Rockford Fosgate Prime R1675-S is a 6.75-inch 2-way component speaker system rated at 40 watts RMS, designed as a next-generation factory replacement to deliver clearer highs and balanced midbass.

Best for

  • Drivers replacing factory speakers who want a component upgrade that accommodates OEM-style installation and improved h…

Key points

  • 6.75-inch 2-way component system
  • Rated 40 watts RMS
  • Mica-injected polypropylene woofer cone for extended frequency response
  • Mylar balanced-dome tweeter for clear highs
  • In-line (integrated) crossover to simplify wiring
  • Tweeter supports flush, surface and angle mounting

Fit and use

Designed to accommodate direct OEM installation where 6.75-inch component speakers are supported. Tweeters can be mounted flush, on the surface, or at an angle to suit factory or custom locations. Confirm speaker cutouts and mounting depth for your vehicle before purchase.

What to know

This kit is sold in pairs and includes woofers, tweeters, in-line crossovers and basic mounting hardware. Power rating is 40W RMS; match speaker power handling to your head unit or amplifier. Verify vehicle fitment and mounting requirements prior to buying. CEA-2031 is the stated measurement standard for performance s…

Highlights

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
More info

Manufacturer details

The Prime R1675-S is a 6.75" 2-way component system rated at 40 watts RMS for a new generation of factory replacement speakers. Kit includes two woofers with grilles, two tweeters with integrated crossovers and mounting hardware.  Sold in pairs (2 each).

Additional details

The Prime Series Component System is a new generation of factory replacement speaker delivering authentic Rockford Fosgate sound. The R1675-S is a dedicated 2-way component system utilizing a Mica injected polypropylene cone for extended frequency response and accommodates direct OEM installation. The tweeter features a Mylar balanced dome to reproduce crystal clear highs, an in-line crossover for simplifying installation, and accommodates flush, surface and angle mounting.

Technologies
CEA-2031

CEA-2031

Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards. This means your speaker has

Specs

Specifications

13
Speaker TypeComponent System
Nominal Impedance (Ohms)4-Ohm
Frequency Response (Hz)55Hz - 20kHz
Tweeter Size (Nominal Diameter)1.0" (25.4mm)
Tweeter Mounting Depth1.06" (26.88 mm)
CrossoverTweeter High-Pass (HP): 12kHz @ 6dB/octave
Sensitivity (dB @ 1W/1M)89
Midrange Mounting Depth2.0" (51.2 mm)
Midrange Size (Nominal Diameter)6.75"
Power Handling (RMS)40 Watts RMS 80 Watts Max
Mounting HardwareYes
Shipping Weight5.2 Lbs. (2.35 kg)
Grille/Trim Ring IncludedYes
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