There are hundreds of subwoofer options on the market. For a company to set itself apart from the competition is no easy feat. With that said, Memphis Audio has developed something truly unique that offers value to both retailers and consumers. Let’s take a look at the Memphis Power Reference Series of subwoofers.

Models and Power Handling

There are six models in the Power Reference series. At the top is the 12-inch PRX12FT, which is rated to handle 400 watts continuously and 800 watts peak. The 10-inch PRX10FT has the same power handling ratings. Both of these drivers are available in models with blue LED illumination built into the cone assembly, as part numbers PRXL12FT and PRXL10FT.

The series includes an 8-inch model called the PRX824V2, which is rated for 200 watts continuous and 400 watts max. Next, there’s the 6.5-inch PRX624, rated for 150 watts continuous and 300 watts max.

The series also includes two shallow-mount woofers. The 12-inch PRXS1224 has a 350-watt continuous, 700-watt max power rating. The 10-inch PRXS1024 has the same ratings.

Features of the Power Reference Subwoofers

The Power Reference series includes four sizes: 12-inch, 10-inch, 8-inch, and 6.5-inch models. They are all based on a heavy-gauge stamped-steel chassis that features three thick “M”s on each side, making them unique from all other subs. The drivers feature a polypropylene woofer cone stitched to a rubber surround for reliability. The cone has another giant letter M in two-tone black-on-black artwork. A custom-tooled rubber trim piece serves as a mounting gasket, ensuring an airtight seal against the enclosure face. Memphis sells pressed-mesh grilles compatible with all Power Reference subwoofer sizes.

At the base of the cone is a TIL fiberglass voice coil former to help ensure reliable operation. The tinsel leads are sewn to the spider to ensure quiet operation. Spring-loaded terminals will accept up to 10-AWG speaker wire.

All Power Reference subwoofers feature Direct Voice Coil Cooling (DVCC). DVCC works by including a series of small vents in the bottom plate of the subwoofer. These vents allow hot air to escape from the voice coil. The result is improved power handling and reduced power compression.

FLEX Voice Coil Impedance

If you are used to shopping for subwoofers, then you should have noticed that we listed only a single model in each size. So, what about varying voice coil impedances to optimize the power your amplifier produces? Memphis has developed a system called FLEX Selectable Impedance Technology.

On the 8-inch, 6.5-inch, and shallow-mount subwoofers, there’s a two-position jumper block on the opposite side of the chassis from the speaker terminal block. Depending on where your installer places the jumper, the driver presents a nominal impedance of 4 or 2 ohms. There’s no need to worry about getting the ‘right’ subwoofer for your amplifier. The 10-inch and 12-inch subwoofers feature Tri-FLEX. This solution offers three jumper positions with 1-, 2-, and 4-ohm configurations.

FLEX eliminates the potential confusion associated with series- and parallel-wiring for dual-voice-coil subwoofers and lets your installer get you on the road quickly and efficiently. Very cool!

Check Out Memphis Power Reference Subwoofers Today!

If you are shopping for a high-performance subwoofer solution for your car, truck, or SUV, drop into a local authorized Memphis Audio retailer and ask about the very cool Power Reference subwoofers. You can find a shop near you by using the Locator Tool on the company website. Be sure to follow Memphis Audio on Facebook, Instagram, and 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.

There are hundreds of companies manufacturing car audio subwoofers these days. Most of them are “off the shelf” products built with specific logos or color schemes. As such, very few of them stand out from the rest. The Memphis Car Audio Mojo series subwoofers are different from these also-rans. They offer features and technologies that enhance performance, providing you with improved bass and greater value for your investment. Let’s take a look at the Mojo MJ1212 car audio subwoofer.

Static Features of the Mojo MJ1212

The Mojo MJ1212 is a 12-inch subwoofer rated to handle 1500 watts of continuous power with a peak power handling of 3000 watts. The driver features a unique voice coil impedance selection feature called FLEX. FLEX allows your installer to choose between 1- and 2-ohm impedances to optimize the net subwoofer impedance, thereby maximizing the performance and power production of your amplifier. In the case of the MJ1212, a jumper block on the opposite side of the spring-loaded terminal block facilitates easy impedance changes.

The MJ1212 is based on a sturdy cast aluminum basket that features a bright orange finish. The orange is a nod to the original Mojo subwoofers from many years ago. The basket had a total of eight spokes between the mounting flange and the spider mounting plateau. It’s open beneath the plateau to optimize heat evacuation. While we are on the topic of keeping things cool, the subwoofer features eight vents in the bottom plate, located directly under the voice coil. These relatively large vents also allow hot air to escape from the voice coil. Memphis is serious about its specifications and goes to great lengths to ensure its drivers can handle the power they are rated for.

In terms of the motor structure, the driver features a wide 300-ounce magnet assembly that helps improve efficiency. The significant mass near the voice coil also helps improve heat transfer, allowing the subwoofer to play louder for longer.

Looking at the front of the Mojo MJ1212, you see a full-size high-gloss carbon fiber dust cap that’s stitched to a high-roll rubber surround. Beneath the cap is a polypropylene cone. At the base of the cone is a massive four-inch voice coil former. The large-diameter voice coil is another key to the driver’s impressive power-handling specifications.

Power handling doesn’t mean much without impressive cone excursion capabilities. The engineers at Memphis designed the MJ1212 with a stunning 1-inch (25.4 millimeters) of linear excursion (Xmax) capability. If you really get things pumping, the cone can move up to 1.75 inches.

Performance Modeling

The key specifications of the MJ1212 include a resonant frequency (Fs) of 33 hertz, an equivalent compliance (Vas) of 0.79 cubic feet and a total Q (Qts) of 0.426. Modeling the provided data in BassBox Pro suggests an ideal sealed enclosure for sound quality of 0.8 cubic feet. This enclosure has an F3 frequency of 63 hertz and a total Q (Qtc) that’s nice and low at 0.554. If you need to cram the driver into a tiny enclosure, you can go down to 0.35 cubic feet net and still have a Qtc of 0.7. The F3 frequency will be 61 hertz in this design. These are impressively small enclosure requirements.

Now, if you really want to party, then a bass-reflex (vented) enclosure is the way to go. Our modeling indicates that the volume requirements remain low, but this presents a challenge in building a vent. Memphis suggests a large enclosure with a net volume of 3.3 cubic feet and a tuning frequency of 29 Hz. A pair of four-inch round vents will just be adequate to keep air velocity under control. The graph below shows the predicted output of both enclosures with 1,500 watts of power. If you have the space, the vented enclosure (yellow trace) is almost 16 dB louder at the same power level than the sealed enclosure (red), specifically at 30 Hz.

Serious Car Audio Subwoofer Solution

Aside from the impressive feature set, the Memphis Car Audio Mojo MJ1212 is a real subwoofer – not a woofer glorified for car audio duty. It will, in the proper enclosure, produce prodigious amounts of low-frequency energy, adding impact to your music like few others.

If you are in the market for a subwoofer that can shake your fillings and blur the rearview mirror, drop by a local authorized Memphis Car Audio retailer and ask to audition the MJ1212. You can learn more about Memphis Car Audio products by visiting their website, following them on Facebook, Instagram and YouTube. If you are looking for a local dealer, visit the locator tool on their website.

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.