Product Spotlight: Rockford Fosgate RFK1D Dual Amp Kit

Knowing that it takes power to make power isn’t rocket science. When feeding high-power car audio amplifiers, skimping on wiring invites problems. If starved for voltage, your amplifiers will run hotter and clip earlier. Rockford Fosgate offers a unique solution to ensure your amp gets the current and voltage it needs. Let’s dive into the Rockford Fosgate RFK1D Dual Amplifier Installation Kit.

Rockford Fosgate RFK1D Overview

The Rockford Fosgate RFK1D is a 1/0-AWG kit that simplifies installing two amplifiers in your vehicle. It includes 1/0 power and ground wire, 4-AWG wiring, a fuse holder, distribution blocks, a ground lug, three stereo interconnects, speaker wire, ring terminals, grommets, and zip ties. Everything needed to install amplifiers like the T1500-1bdCP for your subwoofers and a T1000-4ad for your mids and highs is included.

Power Wiring

The highlight of the RFK1D kit is the 17 feet of 1/0-AWG power cable and three feet of ground cable. Rockford Fosgate wiring meets the full American Wire Gauge (AWG) specification for size at 53.5mm², exceeding the 50.3mm² minimum. The wiring uses Pure Crystal Oxygen-Free Copper (PC-OFC) for maximum conductivity. The 1/0-AWG cable has 4,702 strands, making it extremely flexible.

The kit also includes four feet of 4-AWG power and ground cables. Like the 1/0-AWG cables, the 4-AWG cable is full AWG-sized with 1,862 strands, more than required for its size. It offers a cross-sectional area of 21.1mm².

Additionally, the kit provides 30 feet of two-conductor 16-AWG speaker wire. This wire also uses PC-OFC, with a high strand count for flexibility and AWG compliance.

A high strand count is crucial for speaker wire as it helps prevent work hardening when the wire bends. For instance, if your installer uses Rockford Fosgate’s 65-strand wire for your door speakers, it’s less likely to fail than “value” products with just 26 strands.

All wiring in the kit exceeds ANSI/CTA-2015 Mobile Electronics Cabling Standard requirements and meets the BC-5W2 marine wiring standard. The flexible PVC jacket resists arcing up to 600 volts and handles temperatures up to 105°C without melting or becoming gummy when exposed to oil or fuel.

I can’t stress enough the importance of looking for cables that conform to industry standards. Many brands sell “4 Gauge” wire for a bargain, but once you inspect the number of strands and bundles, you realize there’s more insulation than the wire itself! Undersized or aluminum wire will starve your amplifier and prevent it from producing its rated power.

Fusing and Power Distribution

The RFK1D kit includes an RFFANL Inline ANL or Maxi fuse holder to protect the battery if the wire shorts. The block accepts the included 300-amp ANL fuse. It’s made from solid brass and features a High-Performance Plating (HPP) finish for corrosion resistance and durability.

The kit also includes one-input and two-output distribution blocks, which feature 4-AWG adapter inserts. You can run a 1/0-AWG cable from the battery and alternator, then split it into 4-AWG for a four-channel amp and 1/0-AWG for a sub amp like the T1500-1bdCP. The brass blocks have an HPP finish and come with injection-molded plastic covers.

RCA Interconnect Cables

Just as your amplifiers need efficient power delivery, they also need clean signals. The RFK1D kit includes three 16-foot, two-channel Rockford Fosgate twisted-pair interconnects. Twisted-pair geometry helps reject noise when used with amplifiers featuring differential inputs.

The interconnects feature split center pins for a solid connection. Injection-molded RCA ends provide strain relief, and gray and black markings make it easy to distinguish between channels.

Kit Accessories

The kit is complete and well-designed. It comes with ring terminals crimped onto the 1/0-AWG power and ground cables and the 4-AWG ground cable. A spare 1/0-AWG ring terminal and a brass grounding lug are also included. Additionally, there are 20 feet of 18-AWG remote turn-on wire, butt connectors, grommets, and zip ties.

Complete Dual Amplifier Installation Kit

You could piece together a similar kit from other brands, but matching this quality would take a lot of work. If you have two amplifiers that need reliable power, visit an authorized Rockford Fosgate retailer and ask about the RFK1D kit. If it’s too much, Rockford Fosgate also offers dual amplifier 4-AWG and single-amp kits in 4 and 8-AWG sizes.

To find a Rockford Fosgate retailer near you, use the locator tool on their website. You can also follow Rockford Fosgate on Facebook, Instagram, and YouTube for new product releases and event updates.

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.

What Is A Soundstage And Where Can I Buy One?

When it comes to listening to music, there seem to be two kinds of listeners in the context of “where the sound comes from.” Some people want to be enveloped by the music. They want to feel like they are in the very middle of the performance, with sound all around them. This style is sort of like listening to a set of headphones. The other listener wants their music to come from in front of them. This “forward-facing soundstage” style is more like listening to a home audio system or a movie theater.

There is no right or wrong – everyone has their preference. But high-end mobile audio systems are, for the most part, designed for the latter – people who want to feel as if they are sitting in the middle of the audience at an amazing concert.

There is also that guy in the Monte Carlo with the 6x9s in open-backed boxes in the rear window. He, thankfully, is gone now. If you happen to see him, cut off his mullet and drag him to a car stereo shop, please, and thanks!

Imagining a Soundstage

This article talks about an imaginary soundstage. But what in the world is a soundstage?

Imagine a band set up on a stage 20 feet in front of you. Let’s say there is a lead singer in the center of the stage, right at the forward edge. Behind him or her, someone is at a grand piano. To the right of the piano is a big drum kit with several cymbals all around the performer. In front of the drummer, to the right of the lead singer, is someone sitting on a stool with an upright bass. To the left of the singer is someone with a trombone. To the left of them is someone with a trumpet. Behind the trumpet player, to the left of the pianist, is a xylophone player. The xylophone player is also going to sing some backing vocals. So is the drummer.

Imagine those different positions for a second. They not only range laterally across the soundstage, but there is depth to their locations.

This unique and perhaps rare grouping of performers represents all the source aspects of your soundstage, but their locations don’t represent the limits of that stage. Let’s consider the venue in our analogy as well. A medium-size club of some sort. Wooden walls, a hard floor and a high ceiling. The room where we listen to our performance is a huge contributing factor to the sound of the performers. (If you ever have the chance to visit the Ryman Auditorium in Nashville, TN, do it! Even if you aren’t into country music, this venue is amazing.)

So, here we have our performers and our venue. We are going sit about 20 feet back from the center of the stage and let the show unfold for us. Our experience as the performers play defines the soundstage. We hear each instrument in its position on the soundstage. We also hear the sound of those instruments reflecting off the side walls of the club.

To reproduce the performance accurately, we need to reproduce those reflections as well. Capturing those reflections requires a specific recording style – so it may, or may not, happen. A recording of a live performance is much more likely to have that information than a studio recording.

Our Auditorium on the Road

There it is. The space in front of us, where the music is coming from, is our soundstage. If you get a chance to listen to your favorite recordings on a high-end home audio system, and you choose to sit equidistant from the speakers, then you probably have experienced a fairly accurate soundstage. The perceived location of where our music is coming from regarding height, width and depth is our soundstage.

Sadly, most mobile audio systems can’t or don’t recreate this very well. It’s a shame, because experiencing each performer in their correct location, including depth (one performer behind another) brings an amazing level of realism to your music. The good news: Recreating a soundstage in your car isn’t all that hard.

If you let the salesperson and installer at your local mobile electronics retailer know that you want a soundstage in your vehicle, they can design your system that way. Let’s assume we are building a whole new system from scratch, just to make this easier.

The first step will be to select a set of good-quality speakers for the front of your car. You mostly likely will want a component set unless you can fit a large (5-1/4” or larger) coaxial on the dash. Since most vehicles have the front speakers down low in the door, using a component set will let the shop you use install the tweeters up high and far forward. If the tweeters play low enough, say 2.5 kHz, then a skilled tuner can make the sound appear to come from the dash level, rather than the floor.

The next step to creating a soundstage is to have a way to tune those speakers. We aren’t talking about amplifier gain settings. We need control over equalization, output level and signal delay. Because the driver of the vehicle sits closer to the left speakers, those will appear to be louder, and we will hear the sound being reproduced by them sooner than the sound from the other side of the car. The simplest of systems with great soundstages will have either a source unit or external DSP unit with three-way crossovers, stereo equalizers and the ability to delay the signal going to each speaker.

With the above tools in place, your installer can set up the system so the sound coming from each speaker in the front of the car – from both midrange drivers and both tweeters – arrives at the listening position at the same time. Your installer will also tune the system so the left side of the car sounds the same as the right side. This tuning helps to eliminate frequency steering. Frequency steering causes the source location of a sound to move around the soundstage depending on frequency.

Next-level Performance

The above example offers a great two-way front stage. We would, of course, assume you are going to use a subwoofer in the system. A set of door speakers, even great ones, won’t be able to reproduce the bottom octave of the audio spectrum with any authority. With the sub in the system, it’s now called a three-way system. What if you want the system to sound even more realistic in terms of the placement of voices on the soundstage?

One way to improve your soundstage is to install a set of midrange drivers up high and far forward in the car. The A-pillars, dash speaker locations, and high and forward in the door are common midrange locations. If you can get a midrange that will play down to at least 300 Hz, the ability to solidify the dash as the source of the sound becomes much better. Rather than having deeper voices coming from lower in the door, now they will be focus better across the dash.

Another advantage of a three-way speaker set is that the woofer is often capable of producing slightly deeper midbass than an equivalent two-way speaker set.

The four-way system is going to cost more. You need two more speakers, two more amplifier channels, somewhere to mount those new speakers and probably another 30 to 60 minutes worth of system tuning. But yes, it’s totally worth it.

In these systems, the focus of performance is tailored to the driver’s seat alone. The passenger isn’t going to enjoy the same experience. That said, if you and your co-pilot both want to enjoy equally amazing audio, there are solutions in the works. By the spring or summer of 2017, everyone in the car will be able to enjoy an amazingly realistic soundstage across the dash.

This article provides an overview of the system design requirements for creating a system with a good soundstage. There are a lot of variables and hundreds, if not thousands, of options regarding how to execute to fine-tune the concept.

This is where your experienced mobile electronics retailer comes in. Use their knowledge, skill and experience to help bring your desire for musical realism to reality. If you’re out cruising around, drop into your local mobile electronics specialist retailer and ask if they have a demo vehicle that produces a great soundstage. If you have never experienced one, you will be blown away! Best Car Audio will not be held responsible for the ensuing audio addiction.

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.

Product Spotlight: Rockford Fosgate PMX-1

As much fun as it is to check out top-of-the-line products, sometimes the right solution is surprisingly affordable. The marine and powersport audio experts at Rockford Fosgate offer a full line of digital media receivers. In fact, there are five stand-alone units, plus an add-on multi-zone unit with several controller options. There is, indeed, a solution for every application. We will highlight the affordable but full-featured PMX-1 Punch-Series marine-grade receiver in this spotlight.

PMX-1 Physical Design

When we talk about source units, we usually discuss single or double DIN units designed for cars and trucks. The PMX-1 chassis, designed for marine and powersports applications, is intended to be flush-mounted on a flat panel. Rockford Fosgate has several vehicle-specific audio upgrade kits for side-by-sides that include mounting provisions for this unit.

Rockford Fosgate PMX-1 — The RZR14-STG1 audio kit for Polaris RZR vehicles includes a PMX-1, speakers, and a mounting pod that fits on the top of the dash.

The face of the PMX-1 is 4.5 inches wide and 4.2 inches tall. It protrudes 1.5 inches forward of the mounting surface, and the chassis and heatsink extend 2.9 inches rearward. The kit includes a rubber mounting gasket to ensure the face seals perfectly against the mounting surface.

The radio can be installed in one of two ways. If you have a dash with a round three-inch mounting hole, your installer can mount the radio using the supplied aluminum U-bracket, just like a speedometer or tachometer in a boat. Alternatively, the kit includes a metal mounting bracket that can be positioned behind the mounting surface, and four screws secure the display to the plate and sandwich on either side of the mounting surface. An included trim ring conceals the mounting hardware once in place.

The radio is rated to have an IPX6 water intrusion rating, so you can blast it all day long with a hose or let it get hit by waves. This is crucial in Rockford Fosgate’s Element Ready™ marine, motorcycle, and powersport products. Further, the radio has been tested to exceed prolonged UV and salt fog exposure requirements. Few, if any, other brands talk about the durability of the overall design. Rockford Fosgate punishes their Element Ready™ products with impact and vibration testing to ensure you’ll always have tunes when on the trails or ripping the waves.

User Interface Design

The first feature you will see when you look at the PMX-1 is its 2.3-inch dot-matrix monochrome display. While this looks simple, the display is constructed with a wet-bonded process that makes it easy to read in bright sunlight. The glass screen over the display has a 9H hardness rating, so it’s scratch-resistant. Many competing products use plastic over the display.

A sizable rotary encoder in the center of the front panel allows for volume adjustments or navigating through different menu settings. Four buttons on either side of the encoder provide direct access to source selection, track adjustment, play/pause, menu access, and a dimmer control. Bass heads will love that there are subwoofer + and – buttons on the front panel.

Rockford Fosgate PMX-1 Source Options

You have four options for playing music from the PMX-1. The built-in terrestrial radio tuner includes AM and FM reception capabilities. It also has a weather band tuner for those near larger lakes or the ocean.

You can connect a 32GB or smaller USB memory stick to the USB port to play MP3 or WMA files. The system supports up to 255 folders with a maximum of 1,000 songs.

The radio has stereo RCA input jacks on the back as a third option. So, if you want your installer to connect it to a laptop, DVD player, or similar device, it’s ready to go.

Finally, the PMX-1 includes a Bluetooth receiver. The system uses Bluetooth 3.0+EDR and supports the Advanced Audio Distribution Profile (A2DP) version 1.3. You can connect almost any smartphone and play music stored on it or stream audio from Pandora, iHeartRadio, or Spotify. Album and artist information will scroll across the screen if your device supports sending this information over Bluetooth.

Power, Preamp, and Installation Considerations

The radio includes a four-channel amplifier rated to produce 25 watts of continuous power into four four-ohm speakers with less than 1% THD+N. It also has two sets of RCA jacks on pigtails, rated to produce up to 2 volts of output.

The radio includes a three-zone crossover set to high or low-pass modes with 60, 80, or 120 hertz filter frequencies. The crossovers work on the built-in amplifier and the preamp signals. For the second set of RCA outputs, your installer can select between the rear and subwoofer output functions in a nearby menu.

The radio has a seven-band graphic equalizer with Flat, Rock, Classic, Acoustic, Dance, Electronic, and Hip-Hop presets. A custom EQ mode allows you to fine-tune the system to suit your audio system design or listening preferences. Of course, Rockford Fosgate includes their famous Punch EQ in the PMX-1. You can dial up to 18 dB of boost at 45 Hz and 12 dB at 12.5 kHz.

Power conservation can be a concern for marine and powersports vehicles, so the PMX-1 includes a battery voltage display, so you can keep track of things. The radio uses non-volatile memory to store all setting information. As such, it only requires an accessory and ground power connection. There is no clock, so your installer doesn’t have to hook up a wire likely to drain the vehicle battery. If you turn the radio off but leave it powered, it draws under two amps of current. At the other end of the spectrum, the radio has a 20-amp fuse, so ensure your installer uses large enough wiring to power it.

Compact and Durable Audio Solution

If you are looking for a reliable, easy-to-use radio for a boat, side-by-side, ATV, or jet ski, the Rockford Fosgate PMX-1 is an excellent solution. If you’ve had a craving to build a portable boombox from an old ammo can, the PMX-1 is perfect for that as well. You can pick up a PMX-1 at any authorized Rockford Fosgate dealer. You can find a dealer near you using the locator tool on their website. Be sure to follow our friends from Tempe on Facebook, Instagram, and YouTube to keep up with new product releases and the events they attend.

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.

Thinkware U3000 Dash Cam: Innovating Vehicle Safety with 4K Clarity and Radar Technology!

It’s no exaggeration to say there are hundreds of dash cams on the market. Many are budget models plagued by low-resolution sensors, excessive image compression, and contrast issues. Others offer upgraded optics but still lack state-of-the-art convenience features. However, leading the way in surveillance technologies are dash cams like the Thinkware U3000. Equipped with a Sony image sensor, radar-based parking mode, and Wi-Fi connectivity, this dash cam offers nearly everything you could ask for. Let’s dive in.

Thinkware U3000 Image Sensors

Image quality is paramount when purchasing a dash cam. Clarity and detail largely depend on the choice of image sensor and its resolution. However, data compression settings also play a crucial role in capturing vital information, such as a license plate. The U3000 features a 4K UHD front-facing Sony IMX678 Exmor R Starvis 2 image sensor with a 152-degree lens. With 3840 by 2106 pixels, it captures impressively subtle details.

The most popular U3000 package includes the U3000R rear-facing camera and a cable. The rear camera uses an IMX335 Exmor R Starvis 2K QHD image sensor with a 128-degree lens angle. Although this sensor is higher in quality than most forward-facing sensors on the market, it doesn’t offer the same low-light capabilities as the Starvis 2.

Thinkware U3000 Dash Cam — The most popular U3000 kits include the 2K QHD U3000R rear camera.

Speaking of night recording, Thinkware’s Super Night Vision 4.0 technology reduces sensor noise at high gain levels, allowing for brighter, sharper images after sunset. Capturing clear images in low-light conditions is essential for comprehensive protection.

In addition, Thinkware includes a circular polarizing filter to reduce glare during the day, further enhancing image quality and clarity.

Compact Chassis Design

The U3000’s chassis was designed for discretion. The image sensor mounting position allows the electronics to fit neatly into the space typically blocked by the sun visor at the top of the windshield. Four buttons across the body’s center control manual emergency recording, power down the camera, activate the dash cam’s Wi-Fi connectivity, and toggle audio recording mode on and off. To clarify, the camera begins recording automatically when you start your vehicle, so you never have to worry about forgetting to turn it on. The power button is simply an option to turn the system off, if desired.

All electrical and peripheral connections are located along the rear edge of the chassis, near the top of your windshield. This design reduces clutter and ensures a clean installation. The most popular camera kit includes Thinkware’s OBD II power cable. However, some retailers may use the dealer-exclusive hardwire kit for integration into the vehicle. Both cables automatically enable parking mode when the vehicle ignition is turned off.

Adding an external battery pack like the Thinkware iVolt Mini or iVolt Xtra is a popular upgrade. These packs prevent the main vehicle battery from heavy discharge if the vehicle isn’t driven for a few days, thereby extending battery life.

Thinkware also includes a piece of heat-blocking film and a second piece of two-sided adhesive. The film is ideal for hot climates like Florida or Texas, where interior temperatures can easily exceed 140 degrees. It also simplifies removing the camera if you decide to purchase a new vehicle.

Radar Parking Mode

One of the U3000’s most important features is its radar-based parking mode. Parking mode allows the U3000 to continue monitoring the area around the vehicle after you’re parked. Historically, cameras would monitor the image sensor’s signal and store recordings when motion was detected. This feature, however, consumes a noticeable amount of power from the vehicle’s electrical system.

Uniquely, the kit’s front and rear cameras include radar transceivers. If someone approaches behind to steal your license plate, you’ll have it on video.

Thinkware’s radar-based monitoring solution consumes just a fraction of the energy compared to video monitoring. This allows the camera to monitor the area around your vehicle for days rather than hours. When it detects someone or something nearby, it records a 20-second video. You can fine-tune the radar detection range to suit your parking location.

The U3000 features a built-in supercapacitor. This energy storage solution ensures that recorded video files are saved and closed correctly when power is removed from the camera. In the unlikely event of a severe accident, having a small onboard power source greatly increases the likelihood of retaining evidence compared to a low-cost dash cam.

Video Storage

The popular U3000-2CH kit includes a 64 GB microSD memory card, though the camera supports cards up to 256 GB. Data storage bitrates are selectable between 24 and 30 Mbps. Less compression results in a clearer image and more detail. Best of all, videos are encoded using the MPEG H.265 codec, which offers impressive file compression without significant detail loss.

Connectivity Features

The U3000 supports 2.4 GHz and 5 GHz Wi-Fi connectivity, allowing you to download video files to your smartphone via the Thinkware Dash Cam Link App. Once connected, you can adjust menu settings and view camera images in real-time.

The Thinkware Connected App provides a suite of remote monitoring solutions. From viewing what the dash cam sees to receiving alerts from the built-in impact or radar sensors, it’s like being in the car. You can even access an image from when you last parked the vehicle. If you’ve ever lost track of your car after a day of shopping, this is a huge time-saver and stress reducer. By connecting your U3000 to the Internet using a vehicle or mobile hotspot, you maintain complete control.

ADAS Features

The U3000 offers a full suite of Advanced Driver Assist Systems (ADAS), similar to those found in lane-keeping assist and even self-driving cars. Lane Departure Warning (LDWS), Forward Collision Warning (FCWS), Front Vehicle Departure Warning (FVDW), and Rear Collision Warning (RCWS) are all included. These systems act as a computerized copilot, monitoring what other vehicles are doing around yours. Unlike many other dash cams, the U3000 uses the rear camera’s monitoring capabilities for these features. You can fine-tune which systems you want to activate and at what speed they are enabled via the smartphone apps.

The system supports both GPS and GLONASS global navigation systems. Location and vehicle speed information is stored along with the video. When you play back videos using the PC/MAC viewer software, the vehicle’s location is displayed on a map on the right side of the screen.

Class-Leading Dash Cam Technology

If you’re in the market for the best dash cam to protect your pride and joy, visit a local authorized Thinkware retailer and ask about the U3000. For more information about Thinkware products, visit their website. You can learn more about the U3000 and other impressive products they offer by following them on Facebook, Instagram, TikTok, and of course, 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.

Revisiting The Rockford Fosgate T500-1bdCP Review

In January of 2024, we had the privilege of reviewing the Rockford Fosgate T500-1bdCP amplifier. Based on our experiences with amplifiers from the company, it was no surprise that the amp sounded amazing, was impressively efficient, and exceeded all of its power ratings. The latter is the focus of the re-test. We’ve recently upgraded the power supplies in the BestCarAudio.com Test Drive Review lab. As such, we can supply the subjects with a full 14.4 volts to provide you with measurement numbers that comply with the ANSI/CTA-2006-D standard. So, let’s have another quick look at the highlights of this impressive amplifier, then dig into some new power measurements and efficiency calculations.

Rockford Fosgate T500-1bdCP Features

Here’s what you need to know without going into the same detail as the original Rockford Fosgate T500-1bdCP Review. Firstly, this is a dedicated subwoofer amplifier. It has an as-measured -3dB frequency response of 4.4 to 230 hertz. That bottom-end extension is pretty impressive.

The amp is rated to produce 300 watts of power when connected to a four-ohm load and 500 watts to two- and one-ohm loads. There are amplifiers that produce more power for less money. However, this amp also sounds fantastic. We measured an impressive 0.0213% THD+N at four ohms. Like many others, the amp didn’t fall on its face at lower impedances. Distortion numbers dropped to 0.0226% at two ohms and a still impressive 0.0294% when driving a one-ohm load. These measurements were taken at the ANSI/CTA-2006-D standard of 1-watt output. However, the graph you’ll see below shows the amp remains composed across the entire power output range.

Feature-wise, the amp includes an adjustable -24dB/octave low-pass filter that can be set anywhere between 35 and 250 hertz. It also has a selectable infrasonic filter fixed at 28 hertz with a -12dB/octave second-order slope. Lastly, and as you’d expect, the amp includes the Punch EQ control. Your installer can use this to dial in up to 18dB of boost at 45 hertz to add some extra slam to your audio system. The Punch EQ filter is nice and narrow, so turning it up doesn’t make your midbass sound terrible.

T500-1bdCP Review — All the connections are made along the front edge of the amplifier to keep installations tidy.

An essential feature of the amplifier that many overlook is its cast-aluminum heatsink. Unlike extruded designs, cast heatsinks offer significantly more surface area. When combined with expertly designed efficient circuitry, your amplifier will play longer without overheating. We tested the T500-1bdCP for over an hour at full power into a two-ohm load, and it never shut down. By comparison, we’ve had several amps go into thermal protection in under four minutes. Cast heatsinks are significantly more expensive to manufacture, but if you want to know why people are still using three-decade-old Rockford Fosgate gear, this is one of the reasons why. Think of it like comparing a Zippo lighter to a plastic BIC lighter. Both might light the candles on a cake, but only one is designed to last for your entire life.

Re-Testing the T500-1bdCP

The ANSI/CTA-2006-D Testing and Measurement Methods for In-Vehicle Audio Amplifiers standard has changed a bit from previous versions. Specifically related to continuous power testing, the sensitivity control should now be set to its minimum sensitivity setting. Looking at it from the opposite perspective, the amp should be set to make its maximum power from the highest amount of input signal. For the T500-1bdCP, that would be five volts, according to the owner’s manual. We’ll discuss why this matters in another article.

The next clarification is that the amp must be able to produce this power level for at least 15 seconds. Previous versions of the CTA-2006 standard required the amp to be capable of making this rated output for one minute. While the technician side of me thinks the longer the test, the better, one minute at full power is a long time. Many low-quality amplifiers would be close to overheating. Our testing runs for a little over 15 seconds, which makes it fully compliant with ANSI/CTA-2006-D.

Lastly is voltage. All the standards have stated that the primary continuous power rating be measured with the amplifier supplied with 14.4 volts with a tolerance of +0% to -5%. We fine-tune the adjustment on our new power supplies to be within a few hundredths of a volt of 14.4, which significantly exceeds the 13.68-volt minimum. When it comes to making power, more voltage is always better.

We set the T500-1bdCP up on the bench, turned the sensitivity and Punch EQ all the way, turned the infrasonic filter off, and set the crossover to its highest frequency. We started with the continuous four-ohm power test first. In the original review, we measured 334.9 watts at 1% THD+N with 14.47 volts. With the sensitivity control lower and, thus, less noise in the signal, we saw 339.1 watts at precisely 14.4 volts.

Next, we added our second bank of four-ohm load resistors to provide the amp with a two-ohm load. The original test showed 544.4 watts from 14.12 volts. In the new test at exactly 14.4 volts, the amp produced 583.4 watts. The observed additional 29.3 watts from 0.28 volts is impressive.

Finally, we get to the 1-ohm testing. The original test saw the amp produce 697 watts when fed with 13.9 volts. Now, with an extra half-volt on tap, we measured 766.2 watts. Ignoring the extra 69.2 watts, this means the amplifier produces 53.2% more power into a one-ohm load than it’s rated for. If you’ve ever wondered why the Power Series amplifiers seem to jam harder than they should, this is why.

With this re-test, we are going to introduce a new way of presenting the power versus THD+N graph. Rather than having them in separate graphs, we’ve taken the time to overlay all the traces into a single chart. You can see how clean the amp is right from 100 milliwatts up to where it reaches clipping. The traces are color-coded to make things easy to compare. The red trace is the four-ohm measurement, the green shows the two-ohm performance, and the blue trace is the one-ohm information.

Interestingly, the amp isn’t plagued by noise at low power levels. This is another topic we will cover in a future article.

Increased Efficiency

A secondary benefit of providing an amplifier with more voltage is, in this case, an improvement in efficiency. Based on the original power numbers and associated measurements, the amp was 86% at four ohms, 83% efficient at two ohms, and 63% efficient when driving a one-ohm load. Our new measurements show that these numbers have improved to 87%, 84%, and 74%, respectively. You can see these calculations in the power measurement chart above.

Improved efficiency is a big deal. First, it means the amp won’t heat up as quickly, translating to more playtime. Further, and what matters in the case of your vehicle, it means you get more output power from the limited power available from the charging system.

An Amazing Subwoofer Amplifier

The T500-1bdCP’s performance already blew us away. Having the chance to repeat the power tests with the proper supply voltage shows the value that Rockford Fosgate’s product presents. They could easily rate the amp capable of producing 750 watts into a one-ohm load. Even though they don’t, you now know it can.

If you are shopping for a subwoofer amp that sounds amazing and makes lots of clean power, drop by a local authorized Rockford Fosgate retailer and ask about the T500-1bdCP. You can find a dealer near you using the locator tool on their website. As always, follow the gang from Tempe on Facebook, Instagram, and YouTube to stay up to date with all their car, marine, powersport, and motorcycle audio product releases.

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.

« Previous Page
1
…
4
5
6
7
8
…
14
Next Page »

Sunday	Closed
Monday	8:30 AM - 5:00 PM
Tuesday	8:30 AM - 5:00 PM
Wednesday	8:30 AM - 5:00 PM
Thursday	8:30 AM - 5:00 PM
Friday	8:30 AM - 5:00 PM
Saturday	Closed

Rockford Fosgate RFK1D Overview

Power Wiring

Fusing and Power Distribution

RCA Interconnect Cables

Kit Accessories

Complete Dual Amplifier Installation Kit

Imagining a Soundstage

Our Auditorium on the Road

Next-level Performance

PMX-1 Physical Design

User Interface Design

Rockford Fosgate PMX-1 Source Options

Power, Preamp, and Installation Considerations

Compact and Durable Audio Solution

Thinkware U3000 Image Sensors

Compact Chassis Design

Radar Parking Mode

Video Storage

Connectivity Features

ADAS Features

Class-Leading Dash Cam Technology

Rockford Fosgate T500-1bdCP Features

Re-Testing the T500-1bdCP

Increased Efficiency

An Amazing Subwoofer Amplifier

Testimonials

Nice staff and honor their work

VERY HONEST and PROFESSIONAL company

Absolutely the best service

Great Service

Subscribe to Our Website

Location

Address

Connect With Us

Services

Store Hours