Product Spotlight: Memphis Car Audio Mojo MJ1212

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.

Product Spotlight: AudioControl A600.4

If you have been around the car audio industry for as long as we have, then you have likely used an audio processor in your vehicle. This veteran company is recognized worldwide for its line output converters, equalizers and crossovers. A few decades later, the brand has introduced several series of amplifiers. Their latest offering is the Altitude Series. In this spotlight, we’ll check out the four-channel A600.4 amp.

AudioControl A600.4 Specifications and Features

The A600.4 four-channel amp is rated to produce 100 watts of power per channel when driving four-ohm loads. That output increases to 150 watts per channel when driving two-ohm loads. When each pair of channels is bridged to a four-ohm load, the amp produces 300 watts of power.

With respect to performance, the amp has a THD+N specification of <0.21% and a signal-to-noise ratio of 107 dBA referenced to full power.

Let’s start with a unique feature included in the A600.4 – Valet mode. When a 12-volt signal is applied to the Valet input, the maximum power the amp can produce is reduced to 25% of its maximum output. The malfunction indicator LED will illuminate orange when the amp is in Valet mode. If you are concerned about someone abusing your car audio system, this feature is perfect for keeping your speakers safe.

The A600.4 is also equipped with AudioControl’s Great Turn-On (GTO) circuit. The amp can be activated by applying 12 volts to the remote input. Alternatively, when in GTO mode, the amp will detect the ~6-volt bias on the speaker wires of a factory-installed or aftermarket radio. If your installer is integrating the amp into a vehicle with a full-bridge amplifier, Audio mode will monitor the inputs for the presence of an audio signal to wake the amp up.

Another unique feature of the A600.4 is its use of Linkwitz-Riley alignments on the crossovers. While the slopes are still shallow at 12 dB / Octave, they will sum smoothly around the crossover point because the signal will be -6 dB at the knee frequency. Butterworth crossovers are only at -3 dB at the crossover point, which results in a 3 dB bump when the acoustic signals sum. In short, your system will sound better and have improved clarity around the crossover frequency with this design.

The amplifier is based on an aluminum extrusion and features uniquely styled end-caps for a clean appearance. A removable panel on top of the amp conceals all the signal adjustments and the set screws for the power and speaker connections.

All connections are made along the front edge of the amp using high-quality terminal blocks for 4-AWG power and ground, and 12-AWG speaker wire connections.

AudioControl A600.4 — All connections are made along the front edge of the amp for a tidy installation.

Signal Processing Information

Each pair of channels has a sensitivity control that is adjustable from 0.5 to 6 volts on the RCA inputs and 1.5 to 20 volts on the speaker-level inputs. The speaker inputs are on an eight-pin Molex plug, and AudioControl calls this the LC Direct connection. The amp has a two or four-channel input switch. In two-channel mode, the signal on channel 1 (LC Direct or RCA) is copied to channel 3, and the signal on channel 2 is copied to channel 4. This is ideal if you are connecting that amp to something like a Bluetooth streaming device as a signal source. Each pair of channels has a Max input indicator. This LED will illuminate when the input is maximized and should flash occasionally when playing music recorded at high volume levels.

The crossover on each pair of channels is adjustable between 50 and 500 Hz, or when the x10 switch is enabled, 500 to 5 kHz. This is enough range to handle subwoofer to midrange speakers, or midrange to tweeters. The crossovers on both channel pairs can operate in high- or low-pass mode to ensure maximum system design flexibility.

The amp has an RCA output terminal that can be used to feed an audio signal to an additional amplifier like the A800.1 800-watt monoblock to power a subwoofer.

Finally, there is a connection for an optional ACR-1 remote level control. When connected, you can adjust the output level of channels 3 and 4 to suit your mood or the music you’ve chosen.

Upgrade Your Car Audio System with AudioControl

If you are shopping for a well-equipped four-channel amplifier to enhance your car audio system, drop by a local authorized AudioControl retailer and ask about the new Altitude Series A600.4. You can find a dealer near you using the locator tool on the AudioControl website.

Be sure to follow AudioControl on Facebook, Instagram and YouTube to stay up to speed with all their new products and solutions.

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: KICKER MSC65

There are dozens of companies manufacturing marine-grade speakers. That certainly doesn’t mean that all the speakers sound good and have equivalent performance. KICKER, a company known for developing car audio, powersports and marine audio solutions, recently launched their M-Class Premium Series of marine products. This spotlight will look at the MSC65 6.5-inch coaxial speaker from this high-end family. Let’s check it out!

MSC65 Specifications

The KICKER MSC65 speakers have a published frequency response of 55 Hz to 25 kHz with an efficiency of 89 dB at 1W/1M. Recommended amplifier power is 15 to 100 watts, while peak power handling is 200 watts. The mounting requirements are a 5-7/16” hole with 3-9/16” of depth behind them.

Features of the KICKER MSC65

The MSC65 is a 6.5-inch coaxial that’s designed around a glass-filled nylon chassis. The chassis provides a stable platform for the magnet and moving assembly. At the heart of the speaker is a carbon-fiber-infused polypropylene woofer cone. A Santoprene synthetic rubber surround provides a compliant connection at the top edge of the cone that will last for many years.

For a tweeter, each speaker uses a textile material called Teteron to provide smooth, audiophile-grade performance. The tweeters have a diameter of 28mm (1.1 inches), so they can play low enough to prevent the woofers from becoming directional. The speakers use an integrated -12 dB/octave passive crossover at 3.2 kHz, which helps to ensure smooth and natural sound.

A perforated metal mesh grille protects the tweeters. An eight-spoke grille above the woofer cone supports the whole assembly. This eliminates the need for a pole piece, thereby increasing the woofer’s cone area to improve efficiency and bass production. Each pair of speakers includes both the white and charcoal grilles.

Electrical connections for the speaker are made via two-position Deutsch-style connectors to ensure a reliable, water-resistant connection. The speakers feature RGBW LED illumination, which lights up the cone from an LED strip wrapped around the tweeter’s neodymium magnet. The optional KMLC LED Lighting Remote controller can control the five-wire lighting system. Alternatively, the lighting can be hard-wired to a specific color to match your boat.

KICKER MSC65 — The MSC65 set includes both charcoal and white grilles along with RGBW lighting to add a little extra style.

Real Marine™ Products

KICKER has invested significant resources into ensuring the entire series of M-CLASS products is up to the toughest challenges Mother Nature can dish out. All the speakers and subwoofers are tested for resistance to corrosion from salt under the ASTM B117 standard. They are also tested for colorfastness and resistance to chalking or fading due to prolonged UV exposure under the ASTM G154 standard. Finally, they have an IPX66 water-resistance rating thanks to integrated mounting gaskets on the backs of all the speakers. You can be confident that your purchase from KICKER will last for many years.

Upgrade Your Boat with KICKER M-Class Speakers and Subwoofers Today!

If the sound system on your boat doesn’t put a smile on your face when you turn up the volume, drop by an authorized KICKER retailer today and ask them about the amazing new M-Class marine audio products like the MSC65. You can find an authorized dealer using the locator tool on their website. For more information on KICKER marine, powersports and car audio products, be sure to follow them on Facebook, Instagram, and of course, their amazing YouTube channel.

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: Mosconi Pro 4|30

There are hundreds, if not thousands, of different options available when picking an amplifier for your car audio system. Some amplifiers focus on offering a diminutive footprint to simplify installation but sacrifice thermal stability. Others concentrate on producing prodigious amounts of power at the expense of audio signal purity. Mosconi’s Pro series amplifiers were designed to be reliable and sound great. Let’s look at the Pro 4|30 four-channel amp in this Product Spotlight.

Mosconi Pro 4|30 Specifications

As mentioned, the Mosconi Pro 4|30 is a four-channel amp that’s rated to produce 170 watts of power per channel when driving four-ohm loads. Output power increases to 225 watts per channel with two-ohm loads. Each pair of stereo channels can be bridged to drive a single four-ohm load and provide it with 450 watts of power. Mosconi states that the amp has a signal-to-noise ratio of -83 dBA, referencing one watt of power.

The amplifier chassis measures a robust 500 by 205 by 55 millimeters, or 19.7 inches long, 8.07 inches wide and 2.18 inches tall. The chassis design is unique in that the front and rear halves of the amp are wrapped in vertical aluminum plates. The rear third of the amp is mostly a finned heatsink with two cooling fans mounted on top. The center and bottom thirds of the amp conceal the circuit board.

Amplifier Connections and Features

All the power, signal, and speaker connections are made along the front edge of the amp using integrated terminal blocks. The hex-head set screws for the connections are accessible through openings in the top panel. An easily replaceable 150-amp mini-ANL fuse accessible from the top protects the amp from wiring mishaps.

The four sets of speaker connections are just to the left of the center of the chassis. Once again, terminal blocks with set screws accessible from the top of the amp ensure a reliable connection. Installers should pay close attention to the polarity labels, as the adjacent channels are inverted when viewed left to right.

Finally, on the left side of the amp, we find the input for the optional RTC remote level control and two sets of RCA input jacks.

Audio Processing Options

While the Pro 4|30 may look simple at first glance, it’s got all the features your installer will need to extract excellent performance from your speakers. The settings for Input A and Input B are once again accessible from the top panel and located at the amp’s far left end. The amp can accept audio signals from 350 millivolts up to 12 volts. The amp has a button that enables the high-level input range. When the high-level input is activated, the amp monitors the input for the presence of the BTL offset voltage and activates the amp automatically when detected. A Direct DSP (DDSP) button bypasses much of the audio processing for those instances when using a digital signal processor and locks the input sensitivity to 5.3 volts.

Concerning crossovers, Input A has a -12 dB/Octave high-pass filter that can be set between 43 and 500 hertz, or 430 Hz to 4 kHz when the x10 multiplier button is depressed. Input B has a high-pass crossover that’s adjustable from 18 to 220Hz and a low-pass crossover adjustable from 43 to 500 Hz. It would be nice if the Input B low-pass crossover had an x10 button. That said, most installations with this amp will include a digital signal processor.

High-Bias Operation

If you’d read our articles on amplifier distortion, you’ll know that crossover distortion in Class-AB designs can, when not designed or calibrated properly at the factory, result in sound quality issues, especially at low volume levels. Mosconi’s taken a novel approach to maximizing sound quality by configuring the amp to operate in what they call AAB mode. The output devices are biased to operate in full Class-A mode up to 30 watts of power. Class-A operation eliminates the crossover distortion issue. However, this operation mode means the amp will turn the output devices on halfway when no signal is played. This increases current consumption, so the amp will get quite warm. When running this beauty, you’ll want to ensure your vehicle has a robust electrical system.

Once the output level exceeds 30 watts per channel, the amp reverts to conventional, though still sonically excellent, Class-AB mode. In short, you should experience impressive clarity at low volume levels and still be able to crank things when the mood requires. Very cool!

High-Quality Car Audio Amplification

Though a handful of sound-quality-focused amplifiers are still on the market, they are becoming rarer. You can find smaller, more efficient amplifiers to power your car audio system. However, we suggest formally auditioning the unique Mosconi Pro 4|30. It would be well worth the time investment if you plan on installing a truly high-end audio system in your vehicle. You can find an authorized Mosconi dealer near you using the Find a Dealer tool on the Mosconi America website.

Be sure to follow Mosconi on Facebook and YouTube to learn more about their amazing car audio products.

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: Focal PS 165 SF

When it comes to premium car audio speaker upgrades, most enthusiasts know that Focal offers more solutions than any other. With offerings ranging from OE replacement to benchmark quality, there’s a speaker at a price point for every budget. In this spotlight, we will look at the PS 165 SF two-way, 6.5-inch Slatefiber kit. Let’s check it out!

What is the Focal PS 165 SF kit?

The PS 165 SF speaker kit includes a pair of 6.5-inch woofers, two 20mm tweeters and a set of passive crossover networks.

The woofers are based around a cast aluminum basket. The basket has five sets of twin spokes connecting the mounting flange to the base in what they call the Rotor Effect Basket. Four large (roughly 1-inch) slots in the mounting lip secure the basket to the vehicle. The basket has a bluish-slate color that matches the woofer cone color. Electrical connections are handled by a set of quick-connect terminals housed in a custom-tooled plastic block. The tinsel leads are neither rubber-coated nor sewn to the spider, but the plastic block has dedicated routing to ensure the leads do not slap the cone or spider at high excursion levels.

Focal PS 165 SF — The wire connection terminal block includes routing for the tinsel leads to ensure they operate silently at high output levels.

Slatefiber Woofer Features

The woofer cone is made from non-woven recycled carbon fibers and uses the marketing name Slatefiber for its blueish slate stone appearance. The random design of the cone helps with damping, resulting in smoother high-frequency response. As with many Focal speakers, there’s no dust cap, which helps reduce the mass of the moving assembly to improve upper midrange performance. A large rubber surround provides cone damping and a reliable, flexible seal at the top of the cone. At the base of the cone is a 25mm voice coil former that gives the set an 80-watt continuous power rating. A single ceramic magnet powers the woofer.

A quick look at the woofers’ specifications shows a resonant frequency of 66.8 Hertz, a Qts of 0.592 and an effective surface area of 132 square centimeters. Focal has chosen a slightly lower-than-normal impedance for the woofer, with the DC resistance being 2.8 ohms. This will increase the maximum power available from whatever amplifier you choose to drive the kit.

Focal Aluminum Magnesium Tweeter

The kit includes a pair of Focal’s proprietary aluminum and magnesium inverted hard-dome tweeters. The tweeters have an effective radiating diameter of 20mm, a DC resistance of 4 ohms and a resonant frequency of 2.6 kHz. Their efficiency is rated at 93 dB at 2.83V at 1 Meter.

While tweeter performance is crucial to hearing all your music, installation flexibility is equally important. The Al/Mg tweeters have a flush mounting cup with a grille and integrated phase disc. The raw tweeter can also be installed without the cup in OE applications. The kit also includes surface mount pods for the tweeters when used with their cups. This will allow your installer to mount the tweeters to your dash and aim them toward the listening position.

Passive Crossover Networks

A crucial key to the performance of a component speaker set is to use it with either a properly configured and calibrated digital signal processor or with the right passive crossovers. Focal includes passive crossover networks with the PS 165 SF kit. Uniquely, the woofers’ low-pass filters and the tweeters’ high-pass filters are in different housings. This allows your installer to split the wiring and mounting locations if you have a dash or A-pillar tweeter location and a door location for the woofer. The tweeter crossovers include a three-position switch on the circuit board that allows your installer to reduce tweeter output by 3 or 6 dB to compensate for different mounting distances and listening preferences.

Focal Slatefiber Speaker Design

Looking at all the features of the Focal PS 165 SF Slatefiber set, its efficiency is one of the many features that stand out. As such, these speakers can be used effectively with either a factory-installed or aftermarket radio using “deck power.” If you want more output, a small to medium-sized stand-alone amplifier will provide more output and likely improve clarity—the flexible crossover design complements the OE upgrade suitability of the kit.

If you are in the market for a set of speakers to enhance your mobile audio system, visit a local authorized Focal dealer and ask about the PS 165 SF Slatefiber set. You can find a dealer near you using the store locator tool on the Focal website. For more information on Focal products, be sure to follow them on Facebook, Instagram and 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.

Product Spotlight: Memphis Car Audio Mojo MJ1212

Static Features of the Mojo MJ1212

Performance Modeling

Serious Car Audio Subwoofer Solution

Product Spotlight: AudioControl A600.4

AudioControl A600.4 Specifications and Features

Signal Processing Information

Upgrade Your Car Audio System with AudioControl

Product Spotlight: KICKER MSC65

MSC65 Specifications

Features of the KICKER MSC65

Real Marine™ Products

Other KICKER M-Class Solutions

Upgrade Your Boat with KICKER M-Class Speakers and Subwoofers Today!

Product Spotlight: Mosconi Pro 4|30

Mosconi Pro 4|30 Specifications

Amplifier Connections and Features

Audio Processing Options

High-Bias Operation

High-Quality Car Audio Amplification

Product Spotlight: Focal PS 165 SF

What is the Focal PS 165 SF kit?

Slatefiber Woofer Features

Focal Aluminum Magnesium Tweeter

Passive Crossover Networks

Focal Slatefiber Speaker Design

Customer Reviews

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