Rockford Fosgate T1675 Power Series 6.75" 75W RMS (150W Peak Power Handling) Full Range Coaxial Speakers
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What's Inside?
- • (2) 6.75" Power Series Full Range Coaxial Speakers
- • (2) Grilles
- • (2) 6x9/5x7 Adapter brackets
- • (8) 1-1/4" Allen head screws
- • (1) 3mm Allen head bit
- • (8) Speed clips
- • Installation/Operation manual (English/ French/ Spanish/ German/ Italian)
- • Owner's Manual
Why Choose Rockford Fosgate T1675 Full Range Car Speakers?
Powerful, Clean Sound That Cuts Through the Noise
The Rockford Fosgate T1675 Full Range Coaxial Car Speakers is built for drivers who want serious clarity and punch without stepping into a full custom setup. The carbon fiber-reinforced polypropylene cone keeps things light but incredibly rigid, so your music stays clean and controlled even at higher volume. With VAST surround technology expanding the effective cone area, you get stronger midbass and fuller output without needing a bigger speaker. Paired with a precision aluminum dome tweeter mounted on an offset cantilever, highs come through crisp and detailed with better dispersion across the cabin.
Built Strong, Installs Easy, and Made to Last
These speakers are designed to handle real-world use, not just sound good on paper. The butyl rubber surrounds maintain flexibility and control through heat and daily driving conditions, keeping your sound consistent over time. A rigid StampCast steel basket reduces unwanted vibration so everything stays tight and accurate when you push the system. Installation is also more forgiving thanks to the FlexFit basket design and included multi-size mounting compatibility for 5x7, 6x8, and 6x9 applications with minor adjustments.
Frequently Asked Questions (FAQ)
- • Why do the highs sound too bright or harsh?
Some users report that the highs can sound harsh without tuning. Adjust the treble and EQ settings to achieve a smoother, more balanced response.
- • Why isn't the bass as strong as expected?
Door acoustics and installation have a major effect on bass. Proper sealing, sound deadening, and an amplifier can significantly improve the midbass response.
- • Do I need an amplifier to get the best performance?
They can run from a factory head unit, but users report better performance with external amplification. Clean power provides more volume and headroom.
- • Why does the speaker sound better after adding an amplifier?
Additional clean power gives the drivers more headroom and control. Several users report improved loudness, clarity, and overall performance after amplification.
- • Why won't the mounting bracket fit my vehicle?
Fitment can vary between vehicles even with similarly sized factory openings. Some users have needed spacers, new mounting holes, or minor modifications.
- • Why are these speakers difficult to fit in some doors?
The large magnet and deeper basket can create clearance issues. Measure mounting depth and window clearance before installation to avoid interference.
- • Why does the sound seem weak without sound deadening?
Unsealed doors can reduce midbass and allow panel vibrations to interfere with the sound. Proper treatment helps the woofer perform more effectively.
- • Why did the speakers stop working after being driven hard?
Excessive power, clipping, or incorrect gain settings can damage a speaker even when the amplifier appears lightly adjusted. Keep the signal clean and properly tuned.
- • Can they provide enough bass without a subwoofer?
They can produce impressive midbass, but their size and installation limit deep sub-bass. A dedicated subwoofer is better for very low frequencies.
- • What should I check if they sound distorted?
Check amplifier gain, EQ boost, speaker polarity, wiring, and mounting. Excessive bass boost or clipping can cause distortion even at moderate volume levels.
- Diameter : 6.75 Inch
- Sensitivity : 89 dB
- Impedance : 4 Ohm
- Frequency Response : 55-22000 Hz
- Peak Power Handling : 150 Watts
- Design : 2 Way
- Top Mount Depth : 2-9/16 Inches
- Woofer Composition : Carbon Fiber, Polypropylene
- RMS Power Handling : 75 Watts
Features:
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- High-Strength Carbon Fiber Reinforced Cone Design: Utilizes injection-molded carbon fiber and polypropylene materials to achieve a lightweight yet rigid structure, ensuring consistent cone behavior, improved clarity, and reduced distortion across the frequency range.
- All-Climate Butyl Surround Performance: Engineered with resilient butyl rubber surrounds that maintain optimal damping and flexibility in varying temperatures, preserving sound accuracy and long-term durability.
- Enhanced Output Efficiency with VAST Geometry: Incorporates VAST surround technology to increase usable cone surface area, delivering stronger midbass response and greater overall acoustic output without enlarging the speaker frame.
- Precision-Engineered Aluminum Dome Tweeter System: Features a 1" aluminum dome tweeter mounted on an offset cantilever, minimizing acoustic interference and improving high-frequency dispersion and detail.
- Flexible Installation Alignment Framework: FlexFit basket design with slotted mounting points allows for minor positional adjustments, simplifying installation across a range of vehicle applications.
- Rigid StampCast Structural Basket: Built with a StampCast steel frame to enhance structural stability, reducing unwanted resonance and ensuring cleaner, more controlled sound reproduction.
- Multi-Platform Mounting Compatibility: Includes adaptable mounting brackets designed for compatibility with various OEM sizes such as 5x7, 6x8, and 6x9 with required modification for proper fitment.
- Professional-Grade Terminal Configuration: Oversized positive and negative terminals provide secure electrical contact, requiring quick-slide adapters for seamless integration with most factory wiring harnesses.
Specifications:
- Nominal Impedance (Ohms): 4-Ohms
- Frequency Response (Hz): 55Hz - 22kHz
- Tweeter Size (Nominal Diameter): 1.1" (27.9 mm)
- Speaker Type: 2-Way Coax
- Midrange Size (Nominal Diameter): 6.75"
- 75 Watts RMS
- 150 Watts Max
- Grille/Trim Ring Included: Yes
- Mounting Hardware: Yes
- Includes (1) pair 5"x7" / 6"x9" adapter plates
- Midrange Mounting Depth: 2.51" (64 mm)
- Shipping Weight: 8.2 Lbs. (3.72 kg.)
- CEA-2031 Compliant: CEA-2031 Guidelines
- Built-in tweeter crossover
- High-Pass (HP): 12dB/octave Butterworth
- Sensitivity (dB @ 1W/1M): 89
- UPC: 780687340490
- Weight: 8.2
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.
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Impressive speakers. Very powerful. Bass is clear and is a perfect fit on my Ranger. Love its value for what it offers. Will look for a better amp to power these bad boys
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Good power from these speakers. Pure clean sound with no distortion whatsoever. Bass is there and the mids and highs are just perfect for my ears. Fits straight in. No modifications needed.
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Fantastic speakers to have in my Ranger. A really good upgrade option to have. Glad I went with it. Good bass too. You might not have to get a sub if you are really not into some bassy music.
