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Product Spotlight: Compustar CS852-A Car Alarm System

Compustar CS852-A

A car alarm system like the Compustar CS852-A helps protect the contents of your car or truck and dramatically reduces the chances of vehicle theft. As a step-up solution from the CS697-A, this alarm system offers increased remote-control range and a high-output siren to ward off would-be criminals.

Reliable Vehicle Theft Protection

At the heart of the CS852-A is the Compustar CM2400 Security Control Module. This powerful yet compact microcomputer can monitor the doors, hood and trunk of your car or truck to alert you if someone has tampered with your vehicle. An integrated dual-stage shock sensor monitors the body of the vehicle for impacts. A mild impact will trigger a warning blast from the included high-output 105+dB siren. An impact from car door or an inattentive driver that will cause damage to the vehicle triggers the full siren. The system can also flash the parking lights and sound the horn to attract even more attention and scare off criminals.

Compustar CS852-A
The 105+dB siren included with the CS852-A helps scare away thieves to protect your car or truck.

Thanks to the included E-LOCK starter kill relay, hot-wiring your car by conventional means is nearly impossible. Even if you have unlocked the doors with the key, so long as the alarm is armed, thieves won’t be able to start the engine.

Compustar CS852-A
The included E-LOCK relay helps prevent your vehicle from being stolen when the alarm is armed.

Long-Range Communication

The CS852-A security system includes a pair of PRO-Series G15 one-way long-range remote controls. These easy-to-use key fobs transmit lock, unlock, trunk release and auxiliary output commands from distances as far as 3,000 feet away from your car or truck. If you live in an apartment building or work in an office tower, this extra signal transmission power helps maintain communication with the vehicle through walls and other obstacles.

The CS852-A includes keyless entry functionality to upgrade almost any vehicle with power door locks. You can even opt for power trunk release and power sliding door or power tailgate operation as an option.

The PRO-Series remotes are backed by a three-year warranty, and the control module in the vehicle carries a lifetime warranty, so you can be confident with your purchase.

Compustar CS852-A
The PRO-Series one-way four-button remotes included with the CS852-A offer up to 3,000 feet of range for reliable communication.

Upgrade Your Car Alarm for Added Protection

If you want to receive warnings or alerts from your car alarm, consider upgrading it with the Drone telematics system. DroneMobile combines a cellular communication module that talks to your Compustar car alarm and relays information to the DroneMobile app on your Android or iOS smartphone. You have all the same control features right at your fingertips, and you’ll know instantly if someone is tampering with your vehicle. You can also check the battery voltage and the temperature inside the vehicle. When combined with the Premium service plan, GPS locating functionality and location-based alerts are added for an additional level of confidence.

Compustar CS852-A
Adding the Drone system to your car alarm gives you real-time two-way communication with your vehicle from anywhere that you have access to the Internet.

Another popular upgrade is the DAS-II security sensor. This four-in-one module includes a shock sensor, a digital tilt sensor, vehicle motion monitoring and a glass breakage sensor. If you are worried about someone stealing your wheels or a catalytic converter or smashing a window, adding the DAS-II is wise.

Protect Your Vehicle with Compustar Security Systems

If you’re concerned about automotive theft or vandalism, drop into one of the more than 2,000 Compustar retailers across North America and ask about their vehicle car alarm solutions like the CS852-A. You can find a shop near you by using the Dealer Locator on their website. To learn more about Compustar car alarm systems, follow the brand on Facebook and Instagram, and be sure to visit their 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.

Filed Under: ARTICLES, PRODUCTS, Remote Car Starters, RESOURCE LIBRARY Tagged With: CompuStar

Subwoofer Enclosure Locations – Finding Space For Bass

Enclosure LocationsWhen it comes to bang-for-the-buck upgrades to any audio system, none can beat the dramatic difference of adding a subwoofer. Factory audio systems are getting pretty good at producing a soundstage in front of the listener, and they are EQed well enough not to be painful to enjoy – but one thing they all have in common is anemic, wimpy, thin and muddy bass response. Adding a quality subwoofer system can fix that.

What are optimal subwoofer system enclosure locations? If you think of the stereotypical car audio system, the subwoofer enclosure was usually something that took up most of the trunk or hatch area of the vehicle. You’d pop the trunk, and there would be just enough room for a knapsack or maybe a duffle bag. Did these systems sound great? Absolutely! Did they leave room for golf clubs, luggage or a keg of beer? Not a chance!

Subwoofers for Compact Enclosures

Enclosure LocationsLooking through recent photos of custom car audio installations will reveal that subwoofer enclosures no longer take up space they once did. Why is this? Companies that design and manufacture subwoofers are conscious of the need to provide amazing performance without taking up a lot of space. There are now dozens of subwoofers designed specifically to fit into very shallow locations – like behind or under the seat of a pickup truck. These same subwoofers are also designed to produce deep bass from minimal enclosure volume requirements.

When a company designs a speaker, they have to balance three basic performance criteria – low-frequency extension, efficiency and enclosure volume requirements. In general terms, you get to pick two, and the third will suffer. For a small enclosure driver, it’s often efficiency that takes a small hit. Regaining some of this reduction in output is credited to careful and thoughtful computer modeling and the use of stronger magnets and tighter tolerances withing the motor assembly of the subwoofer. Efficiency isn’t as important as it used to be – we have many high-power amplifiers that don’t cost an arm and a leg.

Conventional Enclosure Locations

Enclosure Locations
Custom enclosure and amplifier rack in SUV hatch.

If you drive a hatchback or SUV, a subwoofer sitting behind the rear seat is still very common. This location works quite well because the output of the subwoofer system is in the same listening environment as it would be in a sedan. Your installer may choose to face the subwoofer in almost any direction – rearward, forward, up or down. Firing the subwoofers down into the floor can act as a bit of a filter for high-frequency energy, so your midbass speakers have to be up to the challenge.

If you drive a sedan, your subwoofer system is probably at the back of the trunk against the rear seats – much like in hatchbacks or SUVs. Again, the direction in which the speaker points varies based on the system design and cosmetic layout. Firing the subwoofers forward provides room to mount amplifiers and processors on the rear of the enclosure.

Another popular application for sedans is to fire the subwoofers through the rear deck or ski pass-through between the seats. These techniques dramatically improve the midbass response from the subwoofer and ease the requirement for large midbass drivers in the front of the vehicle.

A Little Custom, A Little Fun

Working with unique locations can offer a dramatic increase in the available storage area in the vehicle. There are two classic locations for a custom subwoofer enclosure: in the spare tire well or the corner of the trunk or storage area.

Enclosure Locations
A creative installer can fit a surprising amount of equipment in a spare tire well, while leaving the trunk fully functional.

The spare tire well of many vehicles can offer an amazing amount of space for subwoofers. In many cases, a skilled installer can include your amplifiers and processors in that same space. Some thoughtful design and careful planning can leave you with your entire trunk available for cargo. You do need a plan for not having your spare tire with you – but the local auto service is always a phone call away.

Enclosure Locations
This SUV side enclosure takes up almost no usable space.

Building an enclosure in the corner of your trunk can offer excellent performance without a dramatic effect on available cargo space. Installers love to get creative with these enclosure designs. Classically, these enclosures have been molded to the vehicle with layers of fiberglass. Layered fiberglass construction offers excellent use of space, sometimes allowing for a larger subwoofer to be used with the same low-frequency performance, or even for a vented enclosure design. The drawback to fiberglass can be the time it takes for construction, and the smell. Fiberglass resin has a strong odor. It won’t last long, but that aspect is worth keeping in mind.

Another construction technique that is becoming more and more popular is stack-fab. The stack-fab process uses multiple layers of wood. Each is cut to fit the contour of the vehicle, then glued one on top of another until your installer has built up to the top of the desired space. Stack-fab construction can be quite efficient in terms of time. The enclosure is ready to go right away. There is no waiting for layers of fiberglass and resin to dry. Stack-fab isn’t as efficient on internal air space, but produces a very rigid and well-damped result.

Unique Applications and Solutions

Enclosure Locations
In many instances only an inch or two of legroom has to be given up to utilize a footwell enclosure.

What if your vehicle is a little more challenging than most? Say you have a small two-seater like a Miata or an NSX, but want great sound? There is no room behind the seat for anything. What’s an auto sound enthusiast to do? The passenger side footwell can be a great location for a subwoofer. A skilled installer can get a good-quality 8- or 10-inch subwoofer in there while leaving more than enough room for the passenger to sit comfortably in the vehicle.

Wherever you and your installer decide to place your subwoofer enclosure, the addition of good, solid low-frequency musical information will dramatically improve the overall performance of your mobile audio system. Search the Internet and join one of the many car audio groups on Facebook to gather ideas. Once you have a few thoughts, talk with the product specialist and installer at your local mobile electronics specialist retailer. No doubt, the result will be amazing!

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.

Filed Under: ARTICLES, Car Audio, RESOURCE LIBRARY

Enhance Vehicle Security with a DroneMobile Smartphone Interface

Vehicle Security

When it comes to protecting your vehicle from damage or theft, a Compustar security system with a DroneMobile interface ensures that you are always in constant communication. Whether you’re on the sofa watching TV or across the city at your desk, DroneMobile will let you know if someone is tampering with or trying to steal your car or truck.

What Is DroneMobile?

Known as a telematics solution, the DroneMobile app is a remote-control option for your remote car starter or security system. Unlike the keychain fobs that use direct radio-frequency communication with the vehicle, DroneMobile uses the cellular phone network to relay commands from the app on your smartphone to your car or truck. More importantly, a Compustar or Arctic Start security system can send security alerts to your phone to let you know if someone is tampering with your vehicle.

DroneMobile Security Warnings

When it comes to keeping your car or truck safe, combining DroneMobile connectivity with a car starter or security system that includes the DAS-II security module is a fantastic combination. The DAS-II includes four sensors in one compact package. The integrated shock sensor monitors the vehicle for impacts. The tilt sensor will warn you if someone is lifting your car or truck to steal your wheels. The motion sensor will provide warnings if someone is trying to tow it away. Finally, the glass-breakage sensor will let you know if someone is trying to break a window.

Vehicle Security
The DAS-II 4-in-1 security sensor monitors your vehicle for movement or damage.
Vehicle Security
Another option for protecting your vehicle is the Drone X1MAX. This stand-alone system includes door lock control and all the security sensors in the DAS-II.

In a conventional installation without DroneMobile, the vehicle’s siren or horn would be the only warning that something is happening. If you’ve chosen a two-way remote control like the PRO T13 or PRO T9 (which both include the Drone hardware), then the remote will beep when a protection zone is violated as long as you are close enough to the car or truck.

If you have equipped the vehicle with DroneMobile and subscribed to at least the Basic subscription package, warnings from the DAS-II sensor, along with the door, hood and truck monitoring information, are displayed on your smartphone almost instantly. So long as you and your vehicle have access to the cellular data network, you are connected.

Vehicle Security
Alerts from a Compustar security system are forwarded to your smartphone through the DroneMobile smartphone interface.

Improved Car Security with DroneMobile Location Alerts

If you opt for the Premium, Premium Plus or Ultimate service plan for your DroneMobile system, the GPS receiver integrated into the Drone hardware can provide additional warnings. The Premium plan includes Driver Monitoring features like Speeding and Curfew alerts. The Curfew alert allows you to configure a time period when the vehicle shouldn’t be in use. If someone starts the engine, you’ll get a notification right away. Aside from the obvious security benefits, this is a great feature for monitoring fleet vehicles. Curfew alerts remain functional even if the car or truck starts with the key, so you’ll still receive notifications, even if a thief has stolen your keys.

Vehicle Security
The DroneMobile system will send alert notifications to your smartphone if the alarm system is triggered.
Vehicle Security
You can configure the DroneMobile system from the website to alert you if the vehicle is used outside of Curfew hours.
Vehicle Security
If your car goes missing, the GPS Car Finder feature will let you pinpoint its location and alert local law enforcement agencies.

Protect Your Vehicle with a Security System that includes DroneMobile

Protecting your vehicle and its contents with a Compustar or Arctic Start security system that includes a telematics interface like DroneMobile is one of the best options for maintaining the security of your vehicle and its contents. To find an authorized Compustar or Drone retailer in your area, you can use the dealer locator on their website. Be sure to follow them on Facebook, Instagram and YouTube for updates on the latest vehicle security and convenience 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.

Filed Under: ARTICLES, PRODUCTS, Remote Car Starters, RESOURCE LIBRARY Tagged With: DroneMobile

Car Alarms Do More than Help Prevent Vehicle Theft

Car Alarm

Whenever the media focus on vehicle theft statistics, it’s a clear reminder that there’s always the potential for someone to steal something from or vandalize or steal your vehicle. Let’s take a look at why an aftermarket vehicle security system is a wise investment.

Preventing Vehicle Content Theft

Most crimes are based on an easy opportunity. If someone walks past your car and notices a laptop bag in the back seat, they’re far more likely to check to see if the doors are locked or consider smashing a window than if nothing was visible. Thieves will watch parking lots to see who is hiding belongings in the trunk before leaving the vehicle. Your best protection is not to leave anything in the car.

If a thief decides they want to break into your car, one of the first things they’ll look for is an LED from a security system like the Compustar CS697-A. This LED is typically installed on the dash or in the center console and lets a thief know that you’ve invested in added precautions to safeguard your belongings. They don’t know whether the alarm has a shock sensor or a two-way paging system that will alert you to their tampering. Seeing this LED is a significant deterrent.

Choosing a security system with a shock sensor is a wise investment. If the thief decides the LED isn’t enough of a deterrent, they might tap on or attempt to break a window. If your car is in a parking lot or your driveway, the impact required to get into the car is enough to set off the alarm and attract attention the thief won’t want.

A multifunction sensor like the Compustar DAS-II includes dedicated glass-breakage protection that will let you know if someone tries to break a window.

Car Alarm
The DAS-II from Compustar monitors vehicle impacts, motion, tilting and glass breakage.

Protecting Your Vehicle Components

There’s a constant stream of used wheels and tires for sale on Facebook Marketplace and Craigslist. Thieves can make anywhere from a few hundred to a few thousand dollars selling a full set. To steal your wheels, a thief will need to jack up the vehicle. The Compustar DAS-II has an integrated tilt sensor that will trigger the alarm when one corner of the vehicle is raised. Best of all, the sensor recalibrates itself each time the system is armed. This process ensures that you are protected when parking on a hill or a steeply angled driveway. We always recommend adding a set of wheel locks to make stealing your wheels more difficult. This warning applies especially to Jeeps with a spare tire mounted on the back of the vehicle.

As the value of rare metals has increased, so too has the scrap value of catalytic converters. Removing a catalytic converter from a car or truck requires the use of a saw, and most thieves use a cordless hacksaw or reciprocating saw. If they didn’t have to jack up your vehicle to access the converter, the vibrations would trigger a properly calibrated shock sensor.

Car Alarm
Thieves are stealing catalytic converters from cars and trucks for their scrap value. Thanks to Seth Stewart from Burlington, Ontario, for the photo of this vehicle.

Ensure that You Have Communication

If the flashing LED and siren aren’t enough to scare away a thief, then investing in a car alarm with a two-way remote control or a telematics system is a good idea. Two-way remote controls like the Compustar Prime T9 included in the CSX7905-A can beep when the alarm is triggered at distances up to 3,000 feet from the vehicle. You can check the LCD screen to know what zone set off the alarm and respond appropriately.

Another option is the Drone telematics system. The Drone uses a cellular-based communication system to send security alerts to your smartphone without any concern about range. You could be at your desk on the 20th floor of an office building, sitting on your couch in an apartment or working in the middle of a large factory complex – so long as your iPhone or Android smartphone has access to the internet, you’ll receive notifications in a matter of seconds.

Car Alarm
The Prime T9 remote from Compustar provides two-way communication between your vehicle and the remote to let you know if the alarm has been triggered.

Did I Lock the Doors?

Have you ever noticed that even the smallest of distractions can derail an otherwise foolproof routine? What if you’ve arrived at home or work and someone is waiting there to talk to you? Hours later, you may wonder if you remembered to lock your vehicle. If you have a car alarm that’s integrated with the vehicle locking system, all you have to do is press the lock button on your remote or tap the lock icon in the DroneMobile app and you’re safe. The Drone system is particularly convenient when the thought of whether or not your car doors are locked arrives while you are cuddled up in bed.

Top Tips To Keep Your Vehicle Safe

Here are few things to remember if you want to keep your vehicle and its contents as safe as possible:

  • Always lock your vehicle.
  • Always set the parking brake.
  • Park in a well-illuminated area.
  • Never leave belongings, company access cards or loose change in your vehicle.
  • Invest in a high-quality car alarm with a shock sensor and LED.

Aftermarket car alarms like the Compustar CS582-A offer significantly more protection than the factory-installed security systems that come with most vehicles. Aside from all the security features, the long-range Prime G15 remotes that will let you lock the vehicle from inside your home are worth the upgrade. Think of all the hassle you can avoid with an insurance claim with this simple upgrade.

For more information about the vehicle security options available for your car or truck, visit your local Compustar dealer. You can find a shop near you using the Dealer Locator on the Compustar 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.

Filed Under: ARTICLES, PRODUCTS, Remote Car Starters, RESOURCE LIBRARY Tagged With: CompuStar

Passive Vs Active Crossover Networks

Crossover NetworksTo optimize the performance capabilities of a speaker, it should operate within the frequency range for which it was designed. A woofer or subwoofer won’t be able to reproduce high frequencies accurately. A tweeter will self-destruct if you ask it to try to play bass frequencies. For this reason, we use three- and four-way speaker systems in most vehicles. That means using crossover networks.

The purpose of a crossover is to split up the frequencies that pass through it. We are going to delve waist-deep into the benefits and drawbacks of the crossovers commonly used in car audio system component speaker sets.

How a Passive Crossover Network Works

Crossover Networks
This inductor is one of the pieces used in a passive network

A passive crossover network is a component or group of components that is installed on the speaker wires between an amplifier and a speaker. The behavior of these components attenuates portions of the signal going to the speaker itself. Four components are commonly used in passive networks: capacitors, inductors, resistors and protection devices.

The combination and configuration of these components are used to create a low-pass, high-pass or band-pass filter network. Resistors are used to attenuate the output of devices, or sometimes used as part of a frequency-dependent impedance correction circuit called a Zobel network. Some manufacturers include light bulbs, diodes or some form of positive temperature resistors to limit how much voltage a tweeter receives. Completely passive active networks have been available (but that was a long time ago).

How an Active Crossover Functions

Crossover NetworksAn active crossover is a device that modifies an audio signal before the amplifier. It works on line-level or preamp signals only. Active crossovers combine op-amps, resistors and capacitors to alter different frequency ranges of the signal. Unlike passive networks, active crossovers can be designed to increase the level of the signal, but only in the case of powered filters. Active networks are often include other functions, such as remote level controls and bass boost circuits.

Benefits of Passive Crossovers

Crossover Networks
The switches on this passive crossover allow for attenuation.

It is worth noting that each passive network is designed to work at a specific frequency for a specific speaker. If you change the speaker, the filter will not respond in the same way. In some cases, if the impedance of the speaker is significantly different from the one the network was designed for, the speaker may be damaged, or portions of the network may become damaged.

Passive networks are easy to use. You run a wire from your amplifier to the input of the network, then connect each speaker to the output. Other than mounting the network in a dry location that is free from vibration, that’s about all you have to consider.

Some passive networks include some form of output level attenuation. Most use a two- or three-position switch. Some use jumpers. An extremely high-end network may include a variable L-pad or potentiometer for extreme fine-tuning capabilities.

Passive crossovers allow you to split the power of a single amplifier channel to drive two different speakers. Fewer amplifier channels can dramatically reduce the system cost, since you only need a pair of amplifier channels to run a full set of speakers.

Limitations of Passive Crossovers

Since a passive crossover network is designed for a specific frequency, once the parts are chosen and assembled, there is no way to change that frequency without introducing new or additional parts.

Designing a passive crossover can be somewhat complex. The simplest of networks rely on some basic assumptions about the impedance of each speaker at the crossover frequency. Designing a network that compensates for the complex reactive load that speakers create as they move is difficult. It requires computerized modeling software and a way to measure the impedance and frequency response of the speaker at varying drive levels.

High-quality passive crossovers are designed for a specific distance and angle between the woofer and the tweeter. If the network is designed for the speakers to be far apart, moving the speakers close together will cause the signals to sum incorrectly. Even changing the angle of a speaker can have a dramatic effect on the frequency response at the crossover point.

Passive crossover networks have limitations in how much power they can handle. The magnetic fields created in an inductor have a limit. The voltage applied to a capacitor also has a limit. Crossover networks can and do overheat and fail if too much power is sent to them.

Passive crossover networks consume energy. Using a speaker system with a passive network is not quite as efficient as one using an active filter network. The overall efficiency of the crossover network depends on its complexity and the quality of the components used in the network.

Passive crossover networks are somewhat susceptible to noise. If you run a wire with an AC signal on it past the inductor in a passive network, the network can easily pick up that signal and add it to the audio signal. Choosing a safe location to mount passive crossover networks is important.

Benefits of Active Crossovers

Crossover NetworksMost active crossover networks are adjustable. That means by turning a knob or moving a switch, you can change the crossover frequency. This flexibility makes active crossovers suitable for use with almost any speaker system. Most active crossovers also include level controls, so you can easily fine-tune the level of the midrange and tweeter to compensate for different mounting locations.

Active crossovers don’t care how powerful your amplifiers are because they process the signal before it enters the amplifier. Active crossovers are also not very sensitive to temperature variations, so they can be very accurate, all the time. If one of the amplifiers channels in an active crossover system clips, the distortion only affects that single channel.

Challenges of Active Crossovers

Because active crossovers are universal in design, being able to set crossover frequencies accurately can be challenging. Labels on potentiometers are notoriously inaccurate. Most active crossovers have fixed attenuation slopes. You can’t change these slopes to compensate for response characteristics or placement variations. Unless the speaker manufacturer provides it, or you have extensive experience in measuring the electro-mechanical and acoustic response of the set of speakers, knowing what frequency to cross speakers over at can be difficult. Too low and you risk damage to the tweeter. Too high and you get distortion from the midrange. Many speaker combinations also require the over- or under-lap of the crossover frequencies to produce a flat response.

An active crossover requires a dedicated amplifier channel for each speaker. These extra channel requirements can increase the cost of designing a system.

The Perfect Solution

Crossover NetworksIf there is no limit to your budget, the ideal crossover solution for a set of speakers is an active crossover with a Digital Sound Processor performing the filtering. A DSP will offer adjustable crossover frequencies, and most offer adjustable crossover slopes and alignments.

No matter what you choose, it’s a good idea to spend some time with a high-resolution RTA to make sure your system is set up for the smoothest, flattest response possible at the crossover frequency.

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.

Filed Under: ARTICLES, Car Audio, RESOURCE LIBRARY

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