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Rockford Fosgate T1675-S

6.5" / 6.75" 2-Way T1 Power Series Component Car Audio Speaker System

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List price $449.99

$349.99

with warranty

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Built With Technology

The Rockford Fosgate Power series is the finest in audiophile grade sound. Since the original introduction of the Power series, Rockford raised the bar for high-end car audio products. The most recent Power speakers integrate unique Rockford Fosgate technology and advanced engineering that result in the best Power sound to date. The VAST surround provides a larger surface area for the cone. Vast, or Vertical Attach Surround Technique gives about 25% more effect radiating cone, which improves both the efficiency and maximum output capabilities. The new flexfit basket utilizes holes and slots as opposed to the traditional speaker mounting holes. This gives the speakers an easier fit into OEM opening, as well as a secure fit. To separate the mid and high frequencies, Rockford uses an external component crossover that is one of the best in the market today. This audiophile grade crossover effectively replicates the musical quality with detailed accuracy. The tweeters integrate DDC tweeter mounting technology to provide the most secure fitting of the tweeter with an easy installation.

General Features:

  • 6-3/4" / 6-1/2" T1 Power Series 2-Way Car Speakers
  • Power Handling:
    • Peak: 240 watts per pair / 120 watts each
    • RMS: 160 watts per pair / 80 watts each
  • Injection-Molded Carbon Fiber filled Polypropylene cone material
  • 1" Treated-Cloth Dome tweeters
  • Butyl Rubber speaker surround
  • CEA-2031 compliant speakers
  • 1" high-temperature voice coil
  • Multi-OEM Adapter allows shallow mount and compatibility to many vehicles
  • DDC (Discreet Dual Clamp) provides concentric clamping pressure to maximize fitment
  • FlexFit (Slot Mounted Frame Pattern) allows slight adjustment of speaker when mounted
  • VAST (Vertical Attach Surround Technique) provides up to 25% more effective radiating cone area
  • Includes external crossover filters
  • Rubber magnet boot cover
  • 3 level tweeter attenuation
  • Grilles and mounting hardware included
  • 4 ohms impedance
  • Frequency response: 55-22,000 Hz
  • Top-mount depth: 2-1/2"
  • Sensitivity: 89dB
  • 1-year SonicElectronix.com Warranty

Priced Per Pair
Also Found As: T1675S, T-1675S, T-1675-S, T1675 S

Product History:

Rockford Fosgate T1675-S thumbnail
(newest, current model)
Rockford Fosgate T1652-S thumbnail
(previous model, replaced by Rockford Fosgate T1675-S)
Rockford Fosgate T162S thumbnail
(previous model, replaced by Rockford Fosgate Power T1652-S)

Speaker Specifications

Series
This is the manufacturer product line of speakers.
Power (Rockford Fosgate)
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Pair
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
6-3/4" (Oversized 6-1/2")
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way Component System
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Dome
Tweeter Size
Refers to the size of the tweeter. Typically, smaller tweeters produces less output with higher frequency response.
1"
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Cloth
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Injection Molded Polypropylene (IMPP)
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Butyl Rubber
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
200 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
100 watts
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
89 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
55 - 22000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
2-1/2"
Bottom-Mount Depth
The depth when installed from the bottom of the mounting surface. Measured from the bottom of the speaker's magnet to the top of the mounting holes on the rim of the speaker.
2-7/8"
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
5-11/16" x 5-11/16" 
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
Yes

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
100%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
5.0
Value
5.0
Features
5.0
Design
5.0
Usability
4.8

Phil

Lake Charles, LA

Overall
Durability
Value
Features
Design
Usability

Loud and Clear

September 4, 2013

I have these on a Hifonics 1000.4 amplifier. They are getting 125watts RMS each and sound amazing. Have gotten many compliments on them. People say they can hear me coming around of the block. The woofer is like a mini subwoofer. It flexes my door a little bit too. And of course its the classic Rockford quality you expect. Am very happy with them and would recommend them to anyone. Would be nice if the crossover was a bit smaller though. They don't distort. Not even at the highest volume on my deck. Get em. You won't regret it. Rockford Fosgate is the best.

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james

Canada

Overall
Durability
Value
Features
Design
Usability

clear from min to max

May 27, 2013

installed on a jetta mk4. Needed spacers but beyond that the install was easy. I mounted the crossovers in the trunk because they are kind of big but i knew that going in and they do there job well. clear highs and lows from min to max. If you want it loud then this is for you.

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Hunter

Austin, Tx

Overall
Durability
Value
Features
Design
Usability

Amazing speakers

March 6, 2013

I immediately installed them and hooked them up to my P400-4 amp in my truck and they sound astonishing. Crystal clear at any volume. Highly recommended if you've got the room for them. Since they're 6 3/4" speakers they may not fit into 6 1/2" openings, but with them being components and the tweeters and crossovers have to be mounted separately that should be something expected when ordering.

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robert

canyon country, CA

Overall
Durability
Value
Features
Design
Usability

WOW!!!

February 28, 2013

Just installed these and holy cow... what a difference. Had jl c5-650 and these rockford fosgate speakers blow them out of the water. Even better they were half the price of jl you cant go wrong! Buy them!!!

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kyle

sweet home, OR

Overall
Durability
Value
Features
Design
Usability

Best Speakers Ever

January 3, 2013

Holy cow beautifull and loud highs. Lows, mids all in perfect harmony and surprisingly you can FEEL a decent amount of bass coming from this mid woofer. Very impressive, crank it up and is still crystal clear. Only downside i can see from these is finding a spot for the massive crossover that comes with them. If your looking for some bass great mid bass/mids and highs that are SUPER loud but not harsh sounding these are where its at right here you will not be disappointed. BUY THESE!!!

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Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $44.95

Belva 23 ft. of True Spec 12 Gauge Speaker Wire

100% Copper Clad Aluminum, high strand count with ultra-flexible PVC blended jacket for easy installation

Your Price $14.99

12-10 AWG Butt Connectors

These yellow butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers.

Your Price $6.99

12-10 AWG Yellow T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $4.49

12-10 AWG Quick Disconnect Connectors

These yellow quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $6.99

NVX SDDK12 Door Kit

Eliminates speaker panel distortion and reduces door vibration, rattles and squeaks!

Your Price $49.99

Dynamat Xtreme Door Kit 10435

Enough sound dampening to cover most doors!

Your Price $69.95

Stinger Roadkill Door Kit

Use this to eliminate rattle from your doors!

Your Price $46.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $12.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $6.99

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $6.99

3 in 1 Wire Quick Splice T-Tap and Butt Connector Crimper + Wire Cutter

Used for cutting copper and aluminum wires up to 8 gauge.

Your Price $21.99

NVX SDRLR1 Sound Dampening Rubber Roller

Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!

Your Price $7.99

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Product Summary

Manufacturer

Model Number

T1675-S

UPC

780687341138

Weight

10.50lbs

Internal SKU

t1675s

Internal Product ID

60498

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Rockford Fosgate T1675-S