Description
6.75" 2-Way Component System Mica-Injected Cone, Mylar Dome Tweeter, In-Line Crossover. 40W RMS.
Product Overview
The Rockford Fosgate Prime R1675-S is a 6.75" 2-way component speaker system rated at 40W RMS the largest round woofer in the Prime component system range and the component counterpart to the R1675X2 coaxial speaker. It shares the identical construction as the R152-S (5.25") and R16-S (6"): Mica-injected polypropylene cone, foam surround, stamped steel basket, 1/2" (13mm) Mylar® dome tweeter with in-line crossover, and hardware for flush, surface, and angle tweeter mounting. The kit includes two woofers with grilles, two tweeters, two crossovers, and all mounting hardware.
The 6.75" woofer delivers the largest cone area in the Prime round component range providing the best low-frequency extension and output capacity of the three component system woofer sizes before a subwoofer takes over in the frequency range below the woofer's usable limit.
Key Specifications
- Woofer size: 6.75 inch
- Configuration: 2-way component (separate woofer + tweeter)
- Power handling (RMS): 40W per woofer (confirmed)
- Peak power: Not specified — confirm with Rockford Fosgate
- Impedance: Not specified — confirm with Rockford Fosgate
- Sensitivity: Not specified — confirm with Rockford Fosgate
- Frequency response: Not specified — confirm with Rockford Fosgate
- Woofer cone: Mica-injected polypropylene
- Woofer surround: Foam
- Basket: Stamped steel
- Tweeter: 1/2" (13mm) Mylar® balanced dome
- Crossover: In-line (one per tweeter, included)
- Tweeter mounting: Flush, surface, and angle options
- Grilles: Included (with woofers) ✓
- Mounting hardware: Included ✓
- Kit contents: 2 woofers + 2 tweeters + 2 crossovers + grilles + hardware
- Mounting depth: Not specified — confirm with Rockford Fosgate
- Cutout diameter: Not specified — confirm with Rockford Fosgate
- Weight: Not specified — confirm with Rockford Fosgate
- Warranty: Not specified — confirm with Rockford Fosgate
Features & Benefits
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6.75" Woofer — Largest Round Woofer in the Prime Component Range — The biggest round cone in the Prime component lineup, providing the greatest cone area and best low-frequency extension of the three component system sizes — a meaningful advantage for front door positions in vehicles with 6.75" speaker cutouts.
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Mica-Injected Polypropylene Cone — Stiffened polypropylene compound for reduced distortion and more accurate midrange reproduction under dynamic load — the same cone construction used across the Prime component range.
-
1/2" (13mm) Mylar® Dome Tweeter — Consistent high-frequency driver across the Prime component range — bright, detailed, extended treble reproduction.
-
In-Line Crossover — Integrated into the tweeter cable for simplified installation. No crossover box to mount separately.
-
Three Tweeter Mounting Options — Flush, surface, and angle hardware included — same flexibility as R152-S and R16-S.
-
Complete Kit Contents — Two woofers with grilles, two tweeters, two crossovers, and all hardware for a complete two-channel front installation.
-
Foam Surround Note — The R1675-S uses a foam surround in common with the R152-S and R16-S. Same long-term durability consideration applies — see FAQ #4.
Technical Specs
| Specification |
Detail |
| Brand |
Rockford Fosgate |
| Part Number |
R1675-S |
| Series |
Prime |
| Woofer Size |
6.75 inch |
| Configuration |
2-Way Component |
| Power Handling (RMS) |
40W per woofer ✓ |
| Peak Power |
Not specified |
| Sensitivity |
Not specified — confirm with Rockford Fosgate |
| Frequency Response |
Not specified — confirm with Rockford Fosgate |
| Woofer Cone |
Mica-Injected Polypropylene |
| Woofer Surround |
Foam |
| Basket |
Stamped Steel |
| Tweeter |
1/2" (13mm) Mylar® Dome |
| Crossover |
In-Line (one per tweeter, included) |
| Tweeter Mounting |
Flush / Surface / Angle |
| Grilles |
Included ✓ |
| Mounting Hardware |
Included ✓ |
| Kit Contents |
2 woofers + 2 tweeters + 2 crossovers + grilles + hardware |
| Impedance |
Not specified — confirm with Rockford Fosgate |
| Mounting Depth |
Not specified — confirm with Rockford Fosgate |
| Cutout Diameter |
Not specified — confirm with Rockford Fosgate |
| Weight |
Not specified — confirm with Rockford Fosgate |
| Warranty |
Not specified — confirm with Rockford Fosgate |
Compatible With / Goes Well With
Suitable installation:
- 6.75" front door speaker positions — common in Chrysler, Dodge, Jeep, and selected other vehicles
- OEM installation in factory 6.75" speaker locations
Prime component system full range:
| Model |
Woofer |
RMS |
Cone |
Tweeter |
| R152-S |
5.25" |
40W ✓ |
Mica Polypropylene |
Mylar |
| R16-S |
6" |
40W ✓ |
Mica Polypropylene |
Mylar |
| R1675-S |
6.75" |
40W ✓ |
Mica Polypropylene |
Mylar |
Counterpart coaxial: Rockford Fosgate R1675X2 (6.75" 2-way coaxial) — for the same vehicle position in a simpler, single-unit installation.
Pairs well with:
- Rockford Fosgate T400-4, T600-4, or T1000-4AD 4-channel amplifiers
- Dedicated subwoofer system for full-range bass extension
Frequently Asked Questions
What is included in the R1675-S kit?
Two 6.75" woofers with grilles, two 1/2" Mylar dome tweeters, two in-line crossovers, and all mounting hardware — a complete two-channel front component speaker installation kit.
How does the R1675-S differ from the R16-S?
Both are Prime component systems with identical construction. The R1675-S uses a 6.75" woofer versus the R16-S's 6" — providing a larger cone area and improved low-frequency extension. Select based on which size fits your vehicle's front door speaker positions.
What is the benefit of the R1675-S component system over the R1675X2 coaxial speaker?
Both are 6.75" Rockford Fosgate Prime speakers. The R1675X2 coaxial places both drivers in a single unit — simpler installation, single mounting location. The R1675-S component system separates the woofer and tweeter — the tweeter can be positioned independently at ear level for improved soundstage and imaging at the cost of more complex installation.
Does the foam surround affect durability?
The foam surround performs well acoustically but can be more susceptible to heat degradation over many years than rubber. For most Australian installations over a standard ownership period this is not a practical concern. Confirm expected longevity with Rockford Fosgate if very long-term surround integrity is a priority.
What crossover is included?
An in-line crossover per tweeter is included — integrated into the tweeter cable rather than a separate box. Crossover point and slope are not confirmed in the supplier data — pull the official Rockford Fosgate R1675-S datasheet for these specifications.
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