JL 500/1 2 1 Channel D Car Audio Amplifier -- What You Must Know

Are you in search of a good amplifier? Then I would suggest you check out the JL car audio 500/1 amplifier. This amplifier is very efficient and will give little, if any, reason to worry. Here is something more about this product.

It is a class D amplifier. What does this mean? It means that it belongs to the class of highly efficient amplifiers that are up to 90% power efficient. This is a great advantage as it means your battery will not be easily run down. It makes the most efficient use of power when compared to other amplifier classes. And for your car, this is an invaluable feature.

This amplifier features a 12 inch polymer-coated subwoofer and a 12 inch polymer-coated passive radiator. These two are responsible for providing ample bass.

It has a minimum frequency response of 5HZ and a maximum of 0.5kHZ. This means that it will reproduce sound frequencies within this points.

It has protection circuitry which means you are protected from blowouts and short circuits.

It has an SN/R (Signal to noise ratio) of 95dB. This is the difference between the desired electronic signal and the background or self-noise of an audio system. The higher the SN/R, the better. So you can do a comparison with other amplifiers.

It has bass boost which means it can dramatically alter your bass levels to a preset value.

It has remote control. I guess this one doesn't need any explanation.

OUTPUT POWER... It has preamp outputs which means you can pass through another amp (For whatever reasons you'll want to do that -- perhaps for a show or something or for some huge setup).

It has a peak power rating of 500 x 1. However, its power at 2 ohms is 250 watts x 1. An ohm is a unit electrical impedance. In simple terms it means that at 2 ohms, this amp can exert a maximum of 250 watts (that's a lot for a car amp!).

It is tri-mode capable. This means that it supports an advanced method of connecting 2 amplifiers to one audio system.

It has a built-in crossover. This is an internal filter arrangement that breaks up a music signal into different frequency bands that can be sent to different speakers.

Now let's score this amplifier...

Pros of JL car audio amplifier

* It is extremely powerful.

* It has an amazing bass boost and has more than 500 watts of power.

* This amplifier has appealing looks.

* Easy to use and install

Cons of JL car audio amplifier

* Requires careful tuning.

* A bit expensive

I rate this amplifier highly. This amplifier is totally durable and user-friendly. This amplifier is very sleek and gives high-level performance.

This would cost you $400 to $439. So if you're looking for an efficient amplifier then you should certainly go for the JL 500/1 car audio amplifier (Unless you prefer something less expensive and maybe not as powerful).

Visit car-audio-products-and-accessories.com to read more. Chimezirim Odimba writes for CAP.

What To Look For In A Headset Amplifier

The world around us can sometimes be quite a noisy and hectic place, and often the only thing that stands between ourselves and that noisy world is a good headset amplifier. Being able to hear properly on a cell phone is essential, of course, whether the call is being made for business purposes or for purely personal reasons. One of the problems with cell phones, however, is not being able to clearly hear what the other party is saying, and cell phone misunderstandings can be devastating to your business as well as your personal life.

In order to avoid these potential cell phone faux pas, it is a good idea to invest in a high quality headset amplifier before it is too late. There are many such amplifiers on the market today, made by a number of the most well known and well respected makers of cell phones and audio equipment companies on the market. It is important to find the best possible amplifier you can, and to determine just what you need in that amplifier.

The most important thing to look for when shopping for a cell phone headset amplifier, of course, is effectiveness. It is vital that the cell phone amplifier you use be loud enough for you to hear even the softest talker with ease. In addition, it is important that the cell phone headset amplifier have a volume control that it easy to operate and very effective. It is important to be able to easily turn the volume of the amplifier up or down with one hand, perfect for those busy executives on the go.

Another important thing to look for when purchasing a new headset amplifier is to make sure that the amplifier can be removed without disconnecting the call. The ability to disconnect amplifiers, hands free headsets and other accessories without disrupting the call is always an important thing to look for.

In addition, in some cases cell phone owners will have their own favorite brands in mind, making the process of shopping for the right headset amplifier a lot easier. For those cell phone owners with no pre established brand preference, however, it may be a good idea to read the various reviews of different cell phone headset amplifiers and other accessories in order to get a better feel for who the leading companies in the industry are.

After you have narrowed down the choice of headphone amplifiers to just a few choices, it is important to shop around for the best price. There are a number of stores that sell headset amplifiers and other cell phone accessories, and it is important to shop around for the best possible price and value and to shop around at a variety of different stores. The prices charged for amplifiers and other accessories can vary quite a bit from store to store, so it definitely does pay to shop around.

Waldo has been a sound technician at a recording studio for over ten years. In his line of work, he has tested literally hundreds of different headsets and on http://www.bigheadset.com , he shares his in-depth analysis of different brands, models and headphone review.

Boost your power with a car

Copyright 2006 Marc Deschamps

A car amplifier will give you a loud and clear sound on a consistent basis. It will boost the power flowing from the receiver to the speakers. In doing so, it will reduce the stress put on all the other componets of your car stereo system, including the receiver.

Choosing the right car amplifier is important. Your decision should be based on five important features. Make sure you address them all !

The first item on the agenda is the number of channels. This will depend on the number of speakers in your system. Two-channel amplifiers will feed well two speakers or a single subwoofer. You will want to consider a four-channel amplifier if you have any of the following combinations :

? Four speakers
? Two subwoofers
? Two speakers and one subwoofer


Then you want to look at power. An amplifier with an output two times the one of the reciever will give you enough added volume with less distortion. Make sure the wattage of the amplifiers is within the speaker's range. Also, make sure your electrical system can support the additional wattage.


An important feature to consider for your car amplifier is the connection structure. Many factory-installed receivers only come with speaker-level inputs that will require special adaptors. This will normally work very well. However, you may experience some distortion through the speakers. In that event, you may want to consider a new CD/MP3/AM/FM receiver, depending on your budget and sound requirements.

An amplifier normally includes a device to filter different frequencies and minimize distortion. This is called a crossover. Your amplifier should have one crossover for high-frequency notes and another for low-frequencies.

We should discuss one last feature. Most car amplifiers can combine the power of two channels into a single one. This is called bridging and is used to boost the power of the amplifier. The downside to this technique is to create some distortion and limiting the number of available channels. Since the cost of a an amplifier is more and more reasonable it might be wiser to buy a more powerful one !

If you are due for a car stereo upgrade, including an amplifier, don't be afraid to shop around for the best audio components at the most competitive price.

Here you go ! You are hopefully better "connected" to the important features to consider for your car amplifier ..... and more knowledge means ..... more power .... to make the right buying decision.