Rockford Fosgate T1T-S Power 1″ Tweeter Kit
INTRODUCTION
Dear Customer, Congratulations on your purchase of the world’s finest brand of audio products. At Rockford Fosgate we are fanatics about musical reproduction at its best, and we are pleased you chose our product. Through years of engineering expertise, hand craftsmanship and critical testing procedures, we have created a wide range of products that reproduce music with all the clarity and richness you deserve.
For maximum performance we recommend you have your new Rockford Fosgate product installed by an Authorized Rockford Fosgate Dealer, as we provide specialized training through Rockford Technical Training Institute (RTTI). Please read your warranty and retain your receipt and original carton for possible future use.
Great product and competent installations are only a piece of the puzzle when it comes to your system. Make sure that your installer is using 100% authentic installation accessories from Rockford Fosgate in your installation. Rockford Fosgate has everything from RCA cables and speaker wire to power wire and battery connectors. Insist on it! After all, your new system deserves nothing but the best.
To add the finishing touch to your new Rockford Fosgate image, order your Rockford accessories, which include everything from T-shirts to hats.
Visit our web site for the latest information on all Rockford products; www.rockfordfosgate.com or, in the U.S. call 1-800-669-9899 or FAX 1-800-398-3985. For all other countries, call +001-480-967-3565 or FAX +001-480-966-3983
If, after reading your manual, you still have questions regarding this prod-uct, we recommend that you see your Rockford Fosgate dealer. If you need further assistance, you can call us direct at 1-800-669-9899. Be sure to have your serial number, model number and date of purchase available when you call.
PRACTICE SAFE SOUND
Continuous exposure to sound pressure levels over 100dB may cause permanent hearing loss. High powered auto sound systems may produce sound pressure levels well over 130dB. Use common sense and practice safe sound.
SAFETY
This symbol with “WARNING” is intended to alert the user to the presence of important instructions. Failure to heed the instructions will result in severe injury or death.
This symbol with “CAUTION” is intended to alert the user to the presence of important instructions. Failure to heed the instructions can result in injury or unit damage.
- To prevent injury and damage to the unit, please read and follow the instructions in this manual. We want you to enjoy this system, not get a headache.
- If you feel unsure about installing this system yourself, have it installed by a qualified Rockford Fosgate technician.
- Before installation, disconnect the battery negative (-) terminal to prevent damage to the unit, fire and/or possible injury.
SPECIFICATIONS
- MODEL T1T-S
- NOMINAL DIAMETER 6″ (153mm)
- DESCRIPTION 2-Way
- NOMINAL IMPEDANCE 4 OHMS
- FREQUENCY RESPONSE 60-22kHz
- VOICE COIL DIAMETER 1″ (27.9mm)
- POWER RATING (RMS/PEAK) 80W / 160W
- FS – FREE AIR RESONANCE 67 Hz
- OTS 8
- VAS 35 FT (9.8L)
- SENSITIVITY (1W/1M) 86dB
- SENSITIVITY (2.83V/1M) 89dB
- XMAX 16″ (4.2mm)
- MOUNTING DIAMETER 05″ (128.2mm)
- MOUNTING DEPTH 93″ (49.0mm)
- GRILLE/TRIM RING YES
- ADAPTOR PLATE YES

TWEETER CROSSOVER

INSTALLATION
Contents
- (1) Pair Power Series Full Range Component Speakers
- (1) Pair of grilles/trim rings
- Mounting Hardware
- (1) Set adapter plates (5″x7″/6″x9″)
Installation Considerations
Before beginning any installation, follow these simple rules:
- Be sure to carefully read and understand the instructions before attempting to install these speakers.
- For safety, disconnect the negative lead from the battery prior to beginning the installation.
- For easier assembly, we suggest you run all wires prior to mounting your speakers in place.
- Use high quality connectors for a reliable installation and to minimize signal or power loss.
- Think before you drill! Be careful not to cut or drill into gas tanks, fuel lines, brake or hydraulic lines, vacuum lines or electrical wiring when working on any vehicle. If installation in a boat, take care not to cut or drill through the main hull.
- Never run wires underneath the vehicle. Running the wires inside the vehicle or hull area provides the best protection.
- Avoid running wires over or through sharp edges. Use rubber or plastic grommets to protect any wires routed th rough metal, especially the firewall.
Mounting
Mid-Bass
- Determine where the speakers will be mounted. Ensure an area large enough for the speaker to mount evenly. Be sure that the mounting location is deep enough for the speaker to fit; if mounting in a door, operate all functions (windows, locks, etc.) through their entire operating range to ensure there is no obstruction.
- Refer to the specification chart to determine the proper diameter hole to cut for your speaker model. Cutting and mounting templates can be found at rockfordfosgate.com.
- Mark the locations for the mounting screws. Drill the holes with a 1/8″ bit.
- Feed the speaker wires through the cutout and connect to the speaker terminals. Be sure to observe proper polarity when connecting the wires.The speaker’s positive terminal is indicated with a”+”.
- Fit the trim ring over the speaker and mount into place using four (4) screws.
- Tighten the screws until the speaker is snug in place to prevent rattling. Do not over tighten the screws.


Tweeter – Discreet Dual Clamp (DOC™)
- Determine where the speakers will be mounted. Ensure an area large enough for the speaker to mount evenly. Be sure that the mounting location is deep enough for the speaker to fit; if mounting in a door, operate all functions (windows, locks, etc.) through their entire operating range to ensure there is no obstruction.
- Mark the location for the mounting hole. Drill the hole with a standard 1.75 inch (45mm) hole saw.
- With a single center screw secure the inner cup from the front of the door panel to the outer cup from back of the door panel. Tighten the screw until balanced pressure is applied to both faces of the mounting surface.
- Feed the speaker wires through the cutout and connect to the speaker terminals. Be sure to observe proper polarity when connecting the wires. The speaker’s lead wires are indicated with a RED wire “+” and a BLACK wire”-“.
- Simply snap the tweeter into place and secure with a snap-on trim ring. Removal is easy if needed. The protective grille on the tweeter is non-removable and an integral part of the design.

SYSTEM SETUP
Wiring
Standard
- Use illustration for proper connection and be sure to maintain speaker polarity.
- Use only “TWEETER” input(s).
Bi-amp
- Use illustration for proper connection and be sure to maintain speaker polarity.
- Remove 4 screws from crossover bottom to detatch cover.
- When Bl-AMP switched OFF for one amplifier, use only “TWT” input.
- When Bl-AMP switched ON for two dedicated amplifier, use both “TWT” and “WFR” inputs

Tweeter ON/OFF Axis Switch
- Set to ON or OFF to match position of tweeter relative to listener. Default OFF position satisfies most installations.
Tweeter Attenuation Switch
- OdB matches the amplitude (no increase/no attenuation) of the tweeter to the same level as the mid-range (woofer).
- +2dB increases and -2dB reduces the amplitude of tweeter in relation to the mid-range, (ideal when matching offset installation like tweeters located high in door panels and midranges low in kick panels).
Adapter Plate Template 6.75″ Hole Mounting

Adapter Plate Template 6″x9″ Hole Mounting

Warranty
Rockford Corporation offers a limited warranty on Rockford Fosgate products on the following terms:
Length of Warranty
- POWER Amplifiers -2 Years
- PUNCH, PRIME, Marine Amplifiers -1 Years
- All Speakers, Signal Processors, Accessories and Capacitors -1 Year
- Marine Electronics -1 Year
- Any Factory Refurbished Product-90 days (receipt required)
What is Covered
This warranty applies only to Rockford Fosgate products sold to consumers by Authorized Rockford Fosgate Dealers in the United States of America or its possessions. Product purchased by consumers from an Authorized Rockford Fosgate Dealer in another country are covered only by that country’s Distributor and not by Rockford Corporation.
Who is Covered
This warranty covers only the original purchaser of Rockford product purchased from an Authorized Rockford Fosgate Dealer in the United States. In order to receive service, the purchaser must provide Rockford with a copy of the receipt stating the customer name, dealer name, product purchased and date of purchase.
Products found to be defective during the warranty period will be repaired or replaced (with a product deemed to be equivalent) at Rockford’s discretion.
What is Not Covered
- Damage caused by accident, abuse, improper operations.water, theft, shipping.
- Any cost or expense related to the removal or reinstallation of product.
- Service performed by anyone other than Rockford or an Authorized Rockford Fosgate Service Center.
- Any product which has had the serial number defaced, altered, or removed.
- Subsequent damage to other components.
- Any product purchased outside the U.S.
- Any product not purchased from an Authorized Rockford Fosgate Dealer.
Limit on Implied Warranties
Any implied warranties including warranties of fitness for use and merchantability are limited in duration to the period of the express warranty set forth above. Some states do not allow limitations on the length of an implied warranty, so this limitation may not apply. No person is authorized to assume for Rockford Fosgate any other liability in connection with the sale of the product.
How to Obtain Service
Contact the Authorized Rockford Fosgate Dealer you purchased this product from. If you need further assistance, cal 11-800-669-9899 for Rockford Customer Service. You must obtain an RA# (Return Authorization number) to return any product to Rockford Fosgate. You are responsible for shipment of product to Rockford.
EU Warranty
This product meets the current EU warranty requirements, see your Authorized dealer for details.
FAQs
Even though there are no additional harmonics present, the tweeter or compression horn driver will stop working if the tweeter amp has enough power and the level is raised too high. Excessive power and the rise in level below the specified crossover frequency are the problems—and always have been.
A capacitor is used in a straightforward passive crossover to restrict the amount of low frequencies that reach the tweeter. This serves two purposes: it shields the tweeter from excessive low-frequency power application and it aids in shaping the tweeter’s response to match the midrange’s response.
Tweeters can produce a variety of high-pitched vocal frequencies, including feminine voices. Chimes, electric guitar notes, cymbals, synthesised keyboard sounds, some drum effects, and other high-pitched instruments.
Bass notes require a lot of energy to reproduce, but as the scale goes higher, less energy is required. In actuality, most tweeters only ever receive a few watts of power. When it comes to tweeters, the size of your amplifier is irrelevant.
This speaker’s voice coil is not moving; instead, it is made of crystal. Using a multimeter to measure them will frequently produce findings that could lead you to believe the speaker is subpar. The most effective method of testing them is to QUIETLY play a signal through them, listen to it, and then determine whether it generates sound.
A tweeter, also known as a treble speaker, is a particular kind of loudspeaker (typically dome, inverse dome, or horn-type), intended to produce high frequencies that are typically between 3 and 20 kHz but frequently above that range.
The tweeter needs to be light to move quickly and easily while remaining stiff enough to maintain its shape and avoid distorting when the volume is increased. Additionally crucial to producing accurate sound is the tweeter’s capacity to dampen when the music stops.
The dashboard of your car, facing the middle of the passenger seat and the driver seat, is the best place to install the tweeters. It aids in enabling both tweeters’ sounds to be heard simultaneously by the user, resulting in an exhilarating sensation.
When looking for ways to enhance audio, most people don’t consider tweeters. However, tweeters serve a crucial purpose. The quality of your stereo’s sound directly depends on the form and material of the tweeters.
Each driver (tweeter, woofer, and sub) in an active sound system has its own amplification channel. This significantly boosts the system’s power capacity, dynamic range (from softest to loudest sounds), and ability to be controlled tonally across the whole audio spectrum.
A crossover is required for sound to be directed to the proper driver in every audio system, including the one in your car. High, midrange, and low frequencies should be delivered to tweeters, woofers, and subs, respectively. The interior of every full-range speaker is a crossover network.
Three main types of tweeters are available on the market today: planar magnetic, dome, and ribbon tweeters. Before selecting the best tweeter for your needs, it is important to understand the different types of tweeters that are available as each has a distinctive sound.
The good news is that after the initial break-in time, your speakers will unquestionably sound better. In order to enjoy your speakers as soon as possible, you might even wish to complete this step straight away. Although your speakers have several moving parts, none of them have ever moved before use.
A flexible cone is moved back and forth by an electromagnet in traditional speakers to create sound. Drivers assist in converting electrical signals into mechanical vibrations so that recorded sounds can be heard. One of the three main speaker types is tweeters.


















