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When it comes to car audio subwoofers, Rockford Fosgate has solutions for everyone. Whether you need something affordable for the daily driver or want ground-shaking bass that registers incredible SPL measurements on the meter, they have you covered. At the top end of the scale is the Power Series T2S1-16 and its brother, the T2S2-16. These massive 16-inch subwoofers are rated to handle 2,500 watts of power and move air like you’ve never experienced before.

Rockford Fosgate T2S1-16 Features

The T2S1-16 is a 16-inch subwoofer with an effective cone area of about 1.25 square yards. Compare that to a typical 15-inch subwoofer, and you have almost 24% more cone area. That means more efficiency from every watt of power from your amplifier. This subwoofer is based on a proprietary die-cast aluminum chassis that includes twin spider mounting plateaus and extensive cooling vents around the voice coil. Ensuring that everything remains aligned and linear at high excursion levels is paramount with a cone assembly that weighs just shy of 1.25 pounds. The twin progressive Nomex spiders are spaced apart to help prevent rocking when things get loud.

The massive cone includes twin glass fiber layers sandwiched over an aramid honeycomb core to deliver amazing strength and rigidity. An aluminum dust cap with the Rockford Fosgate logo in silver keeps debris out of the monster 3.96-inch aluminum voice coil former. The voice coil winding is edge-wound to optimize flux density and provide excellent efficiency. Edge winding a flat wire is a difficult process and nearly unheard of in car audio, so this tells me it’s designed for sound quality as well as efficiency. The tinsel leads from the coil to the massive eight-AWG terminals are sewn to the spiders to keep them under control.

An injection-molded foam surround at the top of the cone is secured to the basket with an aluminum clamping ring. The T2S1-16 uses Rockford Fosgate’s Vertical Attach Surround Technique (VAST) to optimize the cone area of the driver. This method eliminates the 90-degree mounting angle typically used to secure surrounds to a basket while helping to increase the radiating cone area for more SPL.

The design engineers at Rockford Fosgate included a unique inductive damping heatsink on top of the motor assembly. The heatsink fins help radiate heat and keep the voice coil cool. More importantly, the copper assembly dramatically reduces voice coil inductance to minimize distortion and improve midbass response. The 1-ohm T2S1-16 has a voice coil inductance (Le) specification of a mere 0.53 millihenries. Competing products are often two to four times higher, leading to changes in performance based on cone position. For reference, the T2S2-16 is a single voice coil 2-ohm driver with all the same features. Three 11-pound (5-kilogram) segmented ferrite magnets are stacked on the bottom of the driver to drive this monster.

Last and certainly not least, we should talk about dimensions. The T2S1-16 requires a speaker cut-out with a diameter of 15.04 inches and a mounting depth of 10.47 inches. You will want to have eaten at least two bowls of Wheaties before attempting to handle this roughly 85-pound behemoth.

Room to Boom

Rockford Fosgate offers two enclosure recommendations for the T2S1-16 on its website. If space is at a premium, then a sealed enclosure with a net internal air volume of 2.3 cubic feet provides a -3 dB frequency of 43.3 and a Qtc of 0.74. If you really want to rock, a vented enclosure with a net internal volume of 5.5 cubic feet and three 4-inch vents tuned to 35 hertz will get pretty serious. The F3 frequency of the vented enclosure is 29 Hz, and you’ll have picked up more than 10 dB of output at 40 hertz compared with the sealed enclosure for the same amplifier power. Even with 5,000-watt peaks in terms of drive power, the T2S1-16 won’t reach the jaw-dropping 34-millimeter Xmax rating of the sub at any frequency above 23 Hz. If you need a high-power subwoofer for a home theater or even a small movie theater, a vented enclosure with a slightly lower tuning frequency will be nearly flat to 20 Hz and capable of producing enough bass to make you think a jet engine or explosion is happening in the same room.

Feed Your Need for Bass with Rockford Fosgate

If you demand the best when it comes to high-output car audio subwoofers, drop by a local authorized Rockford Fosgate retailer and ask about the amazing Power Series T2S1-16 16-inch subwoofer. This sub is a perfect match for the T2500-1bdCP amp we looked at a few weeks ago.

You can learn more about Rockford Fosgate Power Series products by visiting their website. Be sure to follow Rockford Fosgate on Facebook, Instagram and YouTube to be the first to learn about their solutions for car, motorcycle, marine and powersports fanatics.

This article is written and produced by the team at www.BestCarAudio.com. Reproduction or use of any kind is prohibited without the express written permission of 1sixty8 media.

When it comes to subwoofer amplifiers from Rockford Fosgate, a few models stand out in the annals of car audio history: the Power 1000, the Power T15kW and the T2500-1bdCP. The latter is currently the flagship of the Power Series and is the most powerful subwoofer amplifier available from our friends in Tempe, Arizona. It’s a workhorse capable of impressive performance, so let’s check it out!

Rockford Fosgate T2500-1bdCP Features

The T2500-1bdCP is a 2,500-watt subwoofer amplifier. It’s based on a large cast aluminum heatsink with a footprint of 8.14 inches in depth, 21.875 inches in width and a total height of 2.14 inches. All the power, signal and subwoofer connections are made along the front edge of the amplifier. A pair of massive 0-AWG terminals on the right side connect the amp to your battery bank, and two pair of speaker terminals on the left side will accept up to 8-AWG speaker wires.

The center panel on top of the amplifier is home to a pair of LED-based level meters. The left-hand meter shows output power in 11 steps from idle to +2 dB (well into clipping). The right-hand meter displays battery voltage from 9 to 16 volts in 11 steps.

In the center of the side panel are the configuration controls. The amp will accept up to 4 volts of input on the RCA terminals. Of course, Rockford Fosgate has included balanced differential inputs on the RCA jacks to eliminate noise that might have been picked up by the RCA interconnects. The low-pass crossover is non-defeatable and offers -24 dB/octave attenuation with frequencies adjustable between 35 and 250 hertz. A selectable infrasonic filter applies a high-pass filter to the audio signal with a 12 dB/octave filter set to 28 hertz.

Of course, the amp includes the famous Punch EQ circuit that allows your installer to dial in up to 18 dB of boost at 45 hertz. An optional Remote PEQ module can be added to let the driver adjust the Punch EQ circuit from the front of the vehicle.

The amp features Rockford Fosgate’s BD output configuration that delivers excellent efficiency and sound quality. The Constant Power design helps ensure that the amp makes as much power as possible into various load impedances.

T2500-1bdCP Power Ratings

In terms of power production capabilities, the T2500-1bdCP is rated to produce 1,500 watts of output into a 4-ohm load and 2,500 watts into 2- and 1-ohm loads. Given our lab experience with Rockford Fosgate products, these numbers are likely underrated by about 10%.

If that’s not enough, two of these amps can be strapped together using the optional bdSYNC2 cable to deliver 5,000 watts of power into a 4- or 2-ohm load. Voice coils, be warned! The amp also has a MasterSync mode that allows a single unit to drive an array of similar amplifiers with the same configuration settings. The RCA output jacks on the right side of the side panel are fundamental to making these features function. Uniquely, your installer can combine the bdSync and Master Sync modes to drive two subwoofers with 5,000 watts each using four amplifiers.

Smart car audio system designers will know that all amplifiers decrease in efficiency with decreases in load impedance. Rockford Fosgate rates the T2500-1bdCP as being 81.9% efficient at 4 ohms, 77.7% efficient at 2 ohms and 64.5% efficient when connected to a 1-ohm load. If you want to get the most bang for your buck in terms of battery and alternator capacity, a 2-ohm load makes these amps the happiest.

By way of sound quality specifications, Rockford Fosgate rates the amp as having a signal-to-noise ratio of at least 70 dB at a 1-watt output level. This is impressive for an amplifier with this much signal gain and capable of so much power. As with all amplifiers from Rockford Fosgate, all specifications comply with the ANSI/CTA-2006-C standard for car audio amplifier specifications.

Experience Bass Like Never Before with Rockford Fosgate

If you are after the ultimate high-end subwoofer system, drop by a local authorized Rockford Fosgate retailer and ask about an amplifier like the amazing Power Series T2500-1bdCP. You can match it with a few of the Power Series subwoofers or one of the outrageously cool T3S1-19 superwoofers. For more information about Rockford Fosgate’s Power Series products, visit their website. You can find an authorized retailer near you using their Dealer Locator. Don’t forget to follow them on Facebook, Instagram and YouTube to learn about their latest solutions for cars, boats, motorcycles and powersports applications.

This article is written and produced by the team at www.BestCarAudio.com. Reproduction or use of any kind is prohibited without the express written permission of 1sixty8 media.

You’ll find thousands of options when choosing upgraded speakers for your car audio system. Rockford Fosgate’s Power Series fits the bill perfectly for those looking for a solution that delivers great sound quality with impressive efficiency and output capability. In this spotlight, we’ll look at the T1650 and the T1693 speakers – two of the most popular sizes in the series.

Rockford Fosgate Power Series Features

The T1650 is a two-way 6.5-inch class speaker optimized for installation in North American, European and Asian vehicles, thanks to its FlexFit 2 basket design. The T1693 is a three-way 6×9 speaker that works in almost any application with at least 3.43 inches of mounting depth.

Both drivers are based on a sturdy stamp-cast aluminum frame. The woofer cones are made of carbon fiber-reinforced polypropylene to deliver excellent rigidity and thermal stability balance. The outer edge of the woofer cone is attached to the basket using a Santoprene rubber surround. The T1650 features Rockford Fosgate’s Vertical Attach Surround Technique design that optimizes the effective cone area of the woofer to increase bass output and efficiency.

At the base of the woofer cones are aluminum voice coil formers that help to draw heat away from the winding. The T1650 has a 1.1-inch voice coil former, and the T1693 features a 1.2-inch diameter former design for added power handling. Vents in the basket under the spider mounting ledge allow hot air to escape from the voice coil. These vents also improve linearity at high excursion levels. Finally, fatigue- and tear-resistant poly-cotton spiders return the woofer cones to rest once the audio signal stops.

The tweeters in the speakers feature a treated aluminum dome design for excellent power handling and high-frequency extension. The tweeter on the T1650 is mounted on a bridge that suspends it above the woofer. This design eliminates the need for a pole piece through the center of the woofer and further increases the radiating area of the woofer. Both drivers feature Rockford Fosgate’s Integrated Concealed Crossover design that hides the filter network within the basket to protect the components and simplify the installation process.

Both systems include a pair of speakers, a set of steel mesh protective grilles and mounting hardware.

Rockford Fosgate T1650 Specifications

The T1650 has a continuous power handling rating of 75 watts and can handle up to 150 watts of peak power. The driver has a nominal impedance of 4 ohms, and its efficiency is specified as 88 dB when powered with 1 watt and measured at 1 meter. A moderately high Qts specification of 0.73 will give the driver a little extra warmth in the lower midrange, making it a perfect solution as a stand-alone option or for use in an audio system with a subwoofer.

Rockford Fosgate T1693 Specifications

The T1693 is a three-way 6×9 speaker with a 1-inch aluminum-dome tweeter and a ½-inch super tweeter. The driver has a nominal 4-ohm impedance and a rated efficiency of 91 dB at 1 watt/1 meter. Power handling is specified as 100 watts continuous and 200 watts peak. The Qts value of 0.6 still delivers a slightly warm sound but emphasizes the focus on excellent dynamics in the lower midrange.

All the dimensional and performance specifications provided for these speakers are compliant with the ANSI/CTA-2031-A standard for the Testing and Measurement of In-Vehicle Loudspeaker Systems. This means you can trust the provided information to be accurate and truthful. It’s also worth noting that Rockford Fosgate uses Klippel speaker analysis equipment to optimize the design of their loudspeakers and subwoofers to ensure that they operate linearly and deliver excellent sound quality.

Upgrade Your Car Audio System with Rockford Fosgate Power Series Speakers

While we’ve highlighted the T1650 and the T1693 in this spotlight, the Power Series includes 4-, 5.25- and 6.75-inch options, along with 4×6, 5×7, 6×8 and two-way 6×9-inch speaker systems for a solution for almost any application. Drop by your local authorized Rockford Fosgate retailer to find out what size is perfect for the upgrade in your car, truck or SUV. You can find a local dealer by using the locator on their website. Be sure to follow the Rockford Fosgate team on Facebook and Instagram to learn about their latest product releases. Also, check out the fantastic videos they post on YouTube.

This article is written and produced by the team at www.BestCarAudio.com. Reproduction or use of any kind is prohibited without the express written permission of 1sixty8 media.