Rockford Fosgate Power T1675-S

6-3/4" component speaker system

Item #: 575T1675S

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6 Reviews | Ask Questions

Free Installation gear for most cars

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Intense performance

Rockford Fosgate builds their Power line of speakers for the true car audio enthusiast. The Power T1675-S component speaker system utilizes advanced design elements to ensure that they'll deliver superior sound in your vehicle for a long, long time. The lightweight 6-3/4" woofer features a polypropylene cone that's reinforced with strong carbon fibers — it'll keep its shape when you're pushing the speaker hard, so you'll hear accurate midrange and bass reproduction.

Treated fabric tweeter

The separate 1" treated fabric dome tweeter makes the high frequencies sparkle, so mount it up closer to your ears for optimal imaging. Superior components eliminate the "hot spots" and dropouts caused by inferior crossover networks. You can select from three tweeter levels to get the best match for your vehicle, and you'll even find a switch that optimizes the sound if you can't mount the tweeters facing directly at you. These speakers will handle up to 100 watts RMS so you'll want to connect an external amplifier to get the most out of them.

Side

These woofers are built for high-power.

Rockford Fosgate innovations

Rockford uses their proprietary VAST™ technique to increase the woofer's cone area without increasing the size of the basket. This larger cone gives you deeper lows and more power handling, and it's supported by a durable rubber surround that's designed to last a long time. The slots around the frame make it easier to install these speakers if the factory holes are slightly off, and they even come with plates that allow them to fit into oval speaker openings.

Product Highlights:

  • component speaker system includes two 6-3/4" woofers, two tweeters, and two external crossovers
  • carbon fiber and polypropylene woofer
  • butyl rubber surround
  • 1" treated fabric dome tweeter
  • 2-way external crossover with 3-way tweeter adjustment
  • includes adapter brackets for 5"x7", 6"x8", or 6"x9" openings (brackets require modification)
  • Vertical Attach Surround Technique (VAST™) increases cone area
  • 4-ohm impedance
  • power range: 10-100 watts RMS (200 watts peak power)
  • frequency response: 55-22,000 Hz
  • sensitivity: 92 dB
  • woofer mounting depth: 2-1/2"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Why install component speakers?

A component speaker system gives you the best possible performance from your car audio system. A system consists of separate woofers, tweeters, and crossovers, each designed to cover one specific range of frequencies. As separate components, the woofer can move freely to deliver more powerful performance, while the tweeter can be custom-mounted in a better spot up closer to your ears, revealing a whole new world of detail. Separate crossovers are far superior to the simple filters wired into full-range speakers, so the components work together for smoother, more focused sound.

Hands-on research

What's in the box?

Download owner's manual

  • Two 6-3/4" Woofers
  • 2 Woofer grilles
  • Two 1" Tweeters (with attached 6" speaker wire terminated with female quick-slide connectors)
  • 2 Front flush mount tweeter brackets
  • 2 Rear flush mount tweeter brackets
  • 2 Surface mount tweeter housings
  • 4 Tweeter trim rings
  • Two 6x9/5x7 Adapter brackets
  • Two M4x25mm Machine screws
  • Two M4x10mm Machine screws
  • Two M4x15mm Stud bolts
  • Eight 1-1/4" Allen head screws
  • 3mm Allen head bit
  • 8 Speed clips
  • Installation/Operation Instructions (English/ French/ Spanish/ German/ Italian)

Product Research

Features

Injection-Molded Woofers: The woofer cones are injection-molded carbon fiber filled polypropylene. This molding process assures a uniform cone thickness for superior linearity and clarity. It is also light weight and rigid for decreased distortion and improved bass response.

Butyl Rubber Surrounds: The butyl rubber surrounds dampen unwanted harmonic distortion while maintaining linear geometry under extreme weather conditions. This leads to less distortion, superior frequency response, and superior durability.

VAST Surround: The Vertical Attach Surround Technique (VAST) increases a speaker's effective radiating cone area without increasing the size of the basket.

FlexFit: The Flex Fit frame utilizes slots (where possible) instead of single screw sized holes; allowing slight adjustment of the speaker when mounted.

StampCast Basket: The T1675-S features StampCast steel baskets for added rigidity.

Multi-OEM Adapter: For mounting flexibility, the included brackets can be modified to fit 5x7, 6x8, or 6x9 applications.

Note: The bracket is generic (cutout sized for a 5-1/4) and requires modification before the T1675-S will fit into it.

Mounting: The 1" treated cloth dome tweeters have multiple mounting configurations; choose flush or surface mount. The surface mount housing can be positioned at two angles, approximately 10° or 30° angle. Depending on the mount used, the installed dimensions are:

  Flush Surface 10° Surface 30°
Mounting Height 0.408" 1.060" 1.25"
Mounting Depth 0.911" Screw Depth Screw Depth
Frame Diameter 2.357" N/A N/A
Cutout Diameter 1.75" N/A N/A
Frame Width N/A 2.130" 2.130"
Frame Depth N/A 2.157" 2.153"

Tweeter Level: A switch on the side of each crossover allows you to adjust the output level of the tweeters to -2 dB, 0 dB, or +2 dB.

Tweeter Axis: Another switch on each crossover adjusts the tweeter output for on axis or off axis placement.

Bi-amp: The crossovers have discrete inputs for the woofer and tweeter, along with a bi-amp on/off switch, so each component can be powered by an individual amplifier channel.

Wiring: The crossover inputs and outputs are set screw clamps; they will accept bare wire up to 12-gauge.

Crossover Dimensions:

  • Width: 4-5/8"
  • Height: 1-3/8"
  • Depth: 4-5/8"

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Rockford Fosgate Power T1675-S Reviews

Average Customer Review:

6 reviews
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great speakers

Written By Art, Amarillo tx on Sunday, November 02, 2014

Great speakers for my 2008 GMC diesel... they sound great, hit real hard on a good amplifier n no distortion whatsoever, I recommend them... Also I had an extra set that I ordered which I was going to return but instead I installed them in my front dash of my 2013 jeep wrangler Rubicon, it says that they will not fit in the front pods bit they fit perfectly with no mods or cutting, perfect for my jeep. I recommend them

Pros: Great speakers, great sound best speakers I've had,

Cons: Shows that these will not fit in a keep wrangler but they do.

Tacoma

Written By Tacoma, Alaska on Friday, October 24, 2014

Crutchfield Customer Review (What's this?)

Excellent detail and clarity. Easy to install. Not much bass but what it has is tight and accurate. Sounds great for rock, metal, classical, blues...

Pros: Easy install, clean accurate sound

Cons: A bit pricy...may be better options for money...

rockford T1675-S

Written By steve, fraser mi on Friday, July 11, 2014

Crutchfield Customer Review (What's this?)

This speaker package is great and sounds outstanding. Love this package.

Rockford Fosgate Power T1675-S

Written By Anonymous, Hudson fl on Wednesday, November 06, 2013

Crutchfield Customer Review (What's this?)

All I can say is WOW. These speakers have the cleanest sound i have ever heard. I would definitely recommend these speakers. Again WOW

Filling!

Written By Kenny, Deerfield Beach, FL on Thursday, August 29, 2013

Crutchfield Customer Review (What's this?)

I installed a set of these in my F250 in the rear corners and they really helped fill in my cab with good rich sound.

Pros: Solid. Good power handling with excellent highs too.

Cons: The flat adaptor plates are flimsy and crack when you try to modify them.

Amazing Speakers

Written By Devin, Pleasant Prairie WI on Tuesday, March 12, 2013

I bought these speakers to replace my Alpine Type R component system. One of my tweeters was "blown". It would pop and crackle in my car. Couldn't explain it. But anyways these speakers are so much better!!!!! Much more clear and crisp. They are solid built. And the tweeter was the same size as my Type R's so it fit in there mount so I didn't have to have the cut out showing. When I first hooked up these speakers I thought something was wrong because I heard something I had never heard before... The actual picking of the strings on the acoustic guitar of a song. The mids and lows are pretty kicking. The mid drivers are a lot bigger. Compared to the Type R's it is pretty close. I almost kept my Type R mids but where the mid was lacking in those Type R's, these speakers have.

Pros: Very clean sounding. LOTS of mid range that I was lacking and missing. Superb built speakers. Not a lot of plastic. Compared to my Type R's they were a LOT bigger and heavier. Really no big deal since they use conventional magnets compared to Alpine using neodymium. I think because the crossover is so much bigger that they sound better. I think that helps. There is more control compared to the Type R's.

Cons: Crossovers are HUGE! I mean I was used to a little in line with the tweeter crossover. It can be a pain in the butt. I had to mount it in between the reinforcement bars in my door. I might rewire my car so the crossover is inside the car since my doors get water in them. I fear the crossover will fail because of the moisture. I also didnt like the fact that both speakers hooked up to the crossover. The nice thing about the Type R's is the mid drivers crossover was built into the speaker.

Get everything you’ll need to enjoy your new Rockford Fosgate Power T1675-S

Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
You'll need speaker wire to connect your speakers to your amp.
Keep your speakers clean and dry. They compress to fit behind your speakers.
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