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Rockford Fosgate Prime R1675X2Prime 6.75" 2-Way Full-Range Speaker (pr)

4.5654 reviewsSee all reviews

Offers much clearer highs/mids and noticeably better sound than stock at a good price; many buyers report the speakers work well with factory head units/amps, but expect possible bracket, screw, or connector modifications during installation.

Buyer confidence

92%

Highlights

  • Vacuum Polypropylene cone
  • Rubber surround
  • Integrated tweeter crossover
  • Grilles and mounting hardware included

Key specs

Full specs
Tweeter Size (Nominal Diameter)
0.50" (12.7 mm)
Nominal Impedance (Ohms)
4-Ohm
Midrange Size (Nominal Diameter)
6.75"
Speaker Type
2-Way Coax
Midrange Mounting Depth
2.19" (53.8 mm)
Power Handling (RMS)
45 Watts RMS 90 Watts Max
Tweeter Mounting Depth
n/a
Frequency Response (Hz)
52Hz - 20kHz

Key specs

Full specs
Tweeter Size (Nominal Diameter)
0.50" (12.7 mm)
Nominal Impedance (Ohms)
4-Ohm
Midrange Size (Nominal Diameter)
6.75"
Speaker Type
2-Way Coax

Highlights

Overview
  • Vacuum Polypropylene cone
  • Rubber surround
  • Integrated tweeter crossover

Review highlights

Based on customer reviews

Clear, affordable upgrade over factory speakers — installation may need extra work

Offers much clearer highs/mids and noticeably better sound than stock at a good price; many buyers report the speakers work well with factory head units/amps, but expect possible bracket, screw, or connector modifications during installation.

654 reviews4.5/5 averageUpdated Mar 15, 2026

What buyers praise

  • Clearer highs and mids than factory speakers
  • Noticeable overall upgrade vs OEM for the price

What to watch for

  • Adapter brackets and speaker holes often don’t align — drilling or bracket modification is commonly needed
Overview

The R1675X2 is a 6.75" 2-way full-range speaker pair from Rockford Fosgate. Each kit is rated 45 watts RMS and includes grilles, integrated high-pass crossovers, and mounting hardware for use as factory-style replacements.

Best for

  • Drivers who need a direct factory-size replacement speaker in a 6.75" configuration and want a full-range
  • two-way design with built-in crossover.

Key points

  • 6.75" 2-way full-range speaker
  • 45 watts RMS power rating
  • Integrated high-pass ICC crossover
  • Includes two speakers (sold in pairs) with grilles and mounting hardware
  • Power rating follows CEA-2031 standard

Fit and use

Intended as a factory-style replacement where a 6.75" speaker fits. The 45W RMS rating identifies typical continuous power handling; match system output to the speaker’s rating. Integrated crossovers simplify use with full-range factory or aftermarket head units.

What to know

Sold as a pair. Confirm your vehicle’s speaker cutout size, mounting depth, and connector compatibility before purchasing. The product includes integrated high-pass crossovers and mounting hardware as stated; check compatibility with any external amplification or wiring adapters you may use.

Highlights

Key features

  • Vacuum Polypropylene cone
  • Rubber surround
  • Integrated tweeter crossover
  • Grilles and mounting hardware included
  • Stamped steel basket
  • Silk dome flush mounted tweeter
  • Sold in pairs (2 each)
  • 1 Year Warranty
  • CEA-2031
  • ICC Crossover
More info

Manufacturer details

The R1675X2 is a 6.75” 2-way full-range speaker rated at 45 watts RMS for a new generation of factory replacement speakers. Kit includes two speakers with grilles, integrated high-pass crossovers and mounting hardware. Sold in pairs (2 each).

Technologies
CEA-2031

CEA-2031

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

ICC Crossover

ICC Crossover

The Integrated Concealed Crossover hides the crossover inside the basket, creating a cleaner look and easier

Specs

Specifications

13
Tweeter Size (Nominal Diameter)0.50" (12.7 mm)
Nominal Impedance (Ohms)4-Ohm
Midrange Size (Nominal Diameter)6.75"
Speaker Type2-Way Coax
Midrange Mounting Depth2.19" (53.8 mm)
Power Handling (RMS)45 Watts RMS 90 Watts Max
Tweeter Mounting Depthn/a
Frequency Response (Hz)52Hz - 20kHz
Mounting HardwareYes
Sensitivity (dB @ 1W/1M)91
Grille/Trim Ring IncludedYes
CrossoverTweeter High-Pass (HP): 6dB
Shipping Weight4.6 Lbs. (2.08 kg.)
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