Sunday, December 25, 2011

Boss BASS1200 10-Inch Low Profile Amplified Subwoofer with Remote Subwoofer Level Control

!9#:Boss BASS1200 10-Inch Low Profile Amplified Subwoofer with Remote Subwoofer Level Control

Brand : BOSS
Rate :
Price : $147.43
Post Date : Dec 25, 2011 23:03:04
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Amazon.com Product Description Amplified subwoofer systems make it easy to get great bass. These enclosures are precision designed and matched to the subwoofer for optimum bass response. Add a powerful built-in amplifier and you have a simple solution for adding "lows" to your system.

A simple solution for adding more lows to your system. Click to enlarge.

Easily install beneath the seat of your car. Click to enlarge.

High and low-level inputs for universal compatibility. Click to enlarge.

Low Profile, High Power
The BASS1200 is a low-profile amplified subwoofer. Low enough to easily fit below the seat of your car, this system offers you a quick and easy way to add a high-powered subwoofer system to your audio system.

The integrated amplifier in the BASS1200 features a low pass crossover and a subsonic filter, as well as a control for adjusting the input sensitivity from 0.2V to 6V. Both high level (speaker level) and low level (RCA type) inputs are present, making this a universal solution for use with any head unit or other input source.

For further flexibility in the use of a subwoofer, a variable bass boost control has been included. You can control the subwoofer level with the remote level control module.

BASS1200 Powered Subwoofer Features:

  • MOSFET PWM (Pulse Width Modulated) Power Supply
  • Thermal, overload and speaker short protection
  • Soft turn-on circuit
  • Remote turn-on/turn-off circuit
  • Variable input gain control
  • Variable low pass crossover
  • Variable subsonic filter
  • Variable bass boost (0 to +12dB)
  • Variable phase shift (0 to 180 degrees)
  • Nickel plated RCA low level and high level inputs
  • LED power/ protection indicator
  • Remote subwoofer level control

What's in the Box
BASS1200 amplified subwoofer, Remote subwoofer level control, Remote subwoofer control cable, High level input harness/wire, Mounting hardware

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Tuesday, December 13, 2011

Choosing the Best Speakers For Your Car

!9#: Choosing the Best Speakers For Your Car

Let's face it; many persons often times become overwhelmed and confused when it comes to choosing the best speakers for their car. With the many shapes, sizes, designs and brands available this makes it even more frustrating and even more when you consider the technical specifications which many persons may not be aware of.

This article will present to you a brief guide about some of the things you should consider when choosing the best speakers for your car.

The very first thing you should do is consider the amount of room and vacant locations that the speakers can be placed in your car. This will go a long way in determining the size of speakers you chose and also the number of speakers you intend to install.

Next, you need to be aware of the power handling and sensitivity specifications of the speakers. Power handling refers to the amount of power, measured in watts the speaker can handle. If your car is equipped with a low powered audio setup then you don't need to get high powered speakers. On the other hand, if you have amplifiers powering your system them you will need speakers with power handling specifications close to the output of the amplifiers. It is important not to be confused with some of the terms used for power handling.

Sometimes you might see manufacturers using terms like "music power" or "peak power handling". These mean very little. Always ensure you look for the maximum RMS power handling. The RMS measures the power that can be handled by a speaker continuously, not just for a short time span.

Secondly there is the sensitivity specification of the speakers. The more sensitive a speaker is the less power will be required to power it and the less sensitive a speaker is, the more power will be required at the same volume. You need to consider the sensitivity especially when you are powering your speakers directly from the head unit without amplifiers. Head units normally have less power and thus they will require speakers that are more sensitive to properly power them. With amplifiers, there is not much to be concerned with although speakers with a lower sensitivity rating is recommended.

Now we look at the type of speaker systems available. These can be divided into two types; full range and component based systems.

A Full range speaker system is one in which all the speakers are mounted into one frame. They consist of the woofer and tweeter and sometimes the midrange all mounted together into one unit. These are best suited if you are replacing the factory speakers that came with your car. With the different shapes and sizes available you can easily find one that fits the factory designed placements for the speakers.

Component based speakers are the ones designed for the best sound. They come separate. The woofers, tweeters and midranges are all separated. The sounds produced by this system are generally more realistic and the tweeters can be mounted in locations that provide the best imaging. In addition, the materials used to design component based speakers are of a higher quality than the full range system.

For both the full range and component based systems, the materials of the speakers are very important. For woofers, stiff light weighted material produces the best output. Most times synthetic films such as polypropylene is used and is very efficient. If you desire more bass then you should go for a mixture of polypropylene and mica which is often stiffer thus providing more bass.

Tweeters are mostly made of soft materials such as poly, textile blends, or silk which produces a very refined reproduction of sounds. Materials such as metal, ceramics, or graphite tend to produce more sudden sounds that are very bright.

Lastly, woofers that contain a surround made of rubber will produce more bass as it allows the cone to move more freely.

Following these guidelines can assist you a great deal in selecting car speakers capable of providing you with maximum entertainment for your listening pleasure.


Choosing the Best Speakers For Your Car

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Wednesday, December 7, 2011

The New QSC K Series Power Speakers

These sounded pretty darn good. The K12 top cabs very darn impressive for a 12 inch speakers. The K Sub wasn't too bad, but it seemed to lack the volume and low end of the HPR 18" sub. All in all I think this will make a great Mobile DJ rig because of the weight and size. If you have questions please check the link below or leave a comment and I'll do my best to answer. www.qsc.com

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Wednesday, November 23, 2011

Consumer Reports - Speakers

!9# Consumer Reports - Speakers

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The best array of audio or video components will let you down if matched with poor-quality speakers. Good speakers don’t have to cost a bundle, though it is easy to spend a lot. For a home-theater system, you can start with two or three speakers and add others as need and budget allows. Size is no indication of quality

WHAT'S AVAILABLE

Among the hundreds of speaker brands available, the major names include Altec, Bose, JBL, KLH, Pioneer, Polk Audio, RCA, and Sony, and Yamaha. Speakers are sold through mass merchandisers, audio/video stores, and “boutique” retailers. You can also buy them online, but be prepared for shipping charges of up to 0 because speakers can be fairly heavy.

Speakers are sold as pairs for traditional stereo setups, and singly or in sets of three to six for equipping a home theater. To keep a balanced system, buy left and right speakers in pairs, rather than individually. The center-channel speaker should be matched to the front (or main) speakers. For the best sound, the rear speakers should also have a sound similar to the front speakers. The front speakers supply the stereo effect and carry most of the sound to the listener’s ears. The center (or center-channel) speaker chiefly delivers dialog and is usually placed on top of or beneath the TV in a home-theater setup. Rear speakers, sometimes called surround or satellite speakers, deliver ambient effects such as crowd noise. A subwoofer carries the lowest tones.

Price range: under 0 to over ,000.

Bookshelf speakers. These are among the smallest, but, at 12 to 18 inches tall, many are still too large to fit on a typical bookshelf. A pair of these can serve as the sole speakers in a stereo system or as the front or rear duo in a home-theater setup. One can serve as the center-channel unit, provided it’s magnetically shielded so it won’t interfere with the TV. Small speakers like these have made strides in their ability to handle deep bass without buzzing or distortion. Any bass-handling limitations would be less of a concern in a multi speaker system that uses a subwoofer to reproduce deep bass.

Price range: 0 to more than 0.

Floor-standing speakers. Typically about 3 to 4 feet tall, these large speakers can also serve as the sole speakers in a stereo system or as the front pair in a home-theater system. Their big cabinets have the potential to do more justice to deep bass than smaller speakers, but we believe many listeners would be satisfied with smaller speakers that scored well for bass handling. Even if floor models do a bit better, their size and cost may steer buyers toward smaller, cheaper bookshelf models.

Price range: 0 to more than ,000.

Center-channel speaker. In a multichannel setup, the center-channel speaker sits on or below the TV. Because it primarily handles dialog, its range doesn’t have to be as full as that of the front pair, but its sound should be similar so all three blend well. Dedicated center-channel speakers are short and wide (6 inches high by 20 inches wide, for instance) so they perch neatly atop a TV.

Price range: 0 to over 0.

Rear-surround speakers. Rear speakers in a multichannel setup carry mostly background sound such as crowd noise. Newer multichannel formats such as Dolby Digital, DTS, DVD-Audio, and SACD make fuller use of these speakers than did earlier formats. You’ll get the best blend if the rear pair sounds similar to the front pair. Rear speakers tend to be small and light (often 5 to 10 inches high and 3 to 6 pounds) so they can be wall mounted or placed on a shelf.

Price range: 0 to over 0.

Three-piece sets. Designed to be used as a stand-alone system or integrated with other speakers, these sets combine two bookshelf or satellite speakers for midrange and higher tones with either a center-channel speaker or a subwoofer for bass.

Price range: 0 to 0.

Six-piece sets. These systems have four satellites (used for both the front and rear pairs), one center-channel speaker, and a subwoofer. Six-piece sets save you the trouble of matching the distinctive sounds of six speakers. That can be a daunting task at home, and even more of a challenge amidst the din of a store that doesn’t have a decent listening room.

Price range: 0 to more than ,000.

Other shapes and sizes. A “powertower” is a tower speaker, usually priced above ,000, with a side-firing, powered subwoofer in its base.

IMPORTANT FEATURES

Lovers of loud sound should pay attention to a speaker’s measured impedance, which affects how well the speaker and receiver get along. Power range refers to the advertised watts per channel. The wattage within a matched pair, front or rear, should be identical. Additionally, a speaker’s power range should exceed the watts per channel supplied by your receiver or amplifier. Speakers sold to be near a TV set typically have magnetic shielding so they won’t distort the picture with their core magnets.

HOW TO CHOOSE

Consider size. Speakers come in all shapes and sizes, so see how they’ll fit in your room. Floor-standing speakers might overwhelm smaller spaces. Bookshelf speakers are often a better fit. But some are quite large, so make sure a model you choose will fit the shelf or niche you’ve earmarked for it. And don’t fear that you’re giving up quality for compactness. Many small speakers do a fine job. Style may factor into your decision as well. Some speakers are sleekly shaped, with silver finishes. Others are more conventional black boxes.

Focus on accuracy, not advertising. The most critical attribute of any speaker is accuracy--the ability to reproduce sound frequencies without over-or under-emphasizing any part of the audio range. As our test have shown time and again, some of the lowest-priced speakers can be among the most accurate. Ads often tout two-way or three-way drivers and the size of the cone inside a speaker, but you can’t judge sound quality by these attributes.

Listen for the differences. Even speakers with comparable accuracy scores can sound quite different. One model may overemphasize treble, while another under-emphasizes it. There’s no substitute for hearing speakers, so bring a CD with a familiar piece of music to the store. Pay special attention to the front pair, because those speakers do the most work.

Speakers will sound different at home because of your room size, shape, and furnishings, so see if the retailer will allow a home trial or ask about the return policy. If you’re torn between two choices, buy the cheaper. Stores may be more open to a return if you want to trade up to a pricier set.

Check impedance. If you like to play music loudly, make sure your receiver is rated to handle the impedance (generally ranging from 4 to 8 ohms) of the front speaker pair.

Copyright © 2002-2006 Consumers Union of U.S., Inc.

For the latest information on this and many other products and services, visit http://www.ConsumerReports.org


Consumer Reports - Speakers

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Thursday, November 10, 2011

Car Audio Amplifiers - The Benefit and Their Uses

!9# Car Audio Amplifiers - The Benefit and Their Uses

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Amplifiers or Amps... We've all heard of them, but why are they so important? And do they really do?

Well they're one of the most important pieces of kit in a sound system. Not only used in car audio, or in home cinema, but also at concerts where you are not only able see your favourite artists but hear them with crystal clear sound quality! This is where amplifiers come into play. An amplifier in your car audio system will enable to you to successfully reproduce music at higher volume levels without the distortion that would plague head units directly powering speakers. Ranging in power output and specifications, the main aim of any amp is to allow you to greatly increase the volume of the signal being sent to your speakers and try to minimise distortion or any kind of crackling. Amplifiers come in a variety of forms, from the mono block bass amps to the 5 channel amps that have the ability to create a cinema style set up in your car.

Amplifiers based upon their circuitry are put into different classes. These different classes enable you to pick an amp that would be best suited to your exact requirements. Usually amps are judged by their power output. Generally the less powerful amplifiers will only advertise the maximum power output that the amplifier is able to produce. However it must be noted that the maximum power output should not be your method of choosing an amplifier. You want to focus on the RMS power (or Root Means Squared). Through some research I have found that if an amplifier has stated that it is able to produce 350w MAX, the RMS power is usually about 70% of that so therefore the amp would be able to continuously produce 240w and at split seconds would be able to produce 350 watts.

For the protection of your subwoofer it is important to never try and push more than the manufacture's recommended power. Overpowering a subwoofer can burn out the voice coil and render the subwoofer useless, however on the other end of the scale, under powering a subwoofer can result in clipping, when the subwoofer will be playing a distorted signal due to the amplifier powering the signal beyond its recommended range.

Subwoofer amplifiers are specifically designed for bass amplification. Usually, the circuitry of subwoofer amplifiers is put into the 'Class D' mono block group. These amps are able to output a signal at high power levels and are used in bass conditions due to their ability to run much cooler than other amplifiers however their ability to amplify every detail of the signal is somewhat poor when compared to other classed amplifiers. This is why for my car audio system, I am running two amplifiers, one for the subwoofer and one for my speakers. This set up has enabled me to have a dedicated amplifier for my subwoofer, a Kicker L7 as well as a dedicated amplifier for my main speakers, a pair of coaxial and a pair of component JBL speakers, and anyone who has heard the system will agree with me when I say that factor in the total price of the system with all the components, this set up is one that will produce a loud, yet clear sound!

Amplifiers are not just used to drive sub woofers. There are numerous amplifiers that are suited to amplify the high and midrange sounds from your music ranging from two channel amplifiers as well as four channel amplifiers to five channel amplifiers, some of which can be used as part of a cinema style setup while others are able to output to six channels. These amplifiers are able to power multiple channels at a reduced power, for example my amplifier is able to produce 50w rms x 4 channels and all the amplifiers have the ability to be bridged(so a four channel amp will be powered in two channels). The benefit of this would be for someone who was interested in a system but due to a number of reasons, only wanted one amp. A system we had installed into a Vauxhall Corsa C comprised of a JVC head unit with the door speakers being replaced by a pair of JBL coaxial speakers, a custom rear install that utilised a pair of JBL 6x9's, a four channel JBL GTO-504e amplifier with a JBL GTO-1202D subwoofer. Then end result with this car was a system able to play a full bodied sound with bass that did not overpower the system, but just result was an experience that's sure to not disappoint!

So now we come to your car. You must be wondering what amplifier/s would be ideally suited for your needs. If you're looking at just adding a little bit of bass then a small amp powering a subwoofer such as the MTX all in one series are able to warm your sound up without having window shaking bass levels. For those who want some more power I would recommend the amplifier in my car in a heartbeat. Although there is the Rockford Fosgate 500.2 which due to its Class A/B circuitry, will be able to power other speakers if needed. If budget is no issue, a Rockford Fosgate Power T1500-1bd powering two Kicker L7 subwoofers would be able to put out close to 148db, which believe me, is loud! If you decide that you want to run a separate amplifier then these will range in price and specification, but it is a known fact that due to their established name in the industry, Rockford Fosgate have built a reputation that people around the world respect and recognise and their Power Series amplifier range has continued to prove that they have worked hard for their reputation. The Power T600-4 amplifier is able to produce 100 watts continuously to 4 channels at 4 ohms enabling you to run your system cool and efficiently (for more information on how to wire your systems keep checking back).


Car Audio Amplifiers - The Benefit and Their Uses

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Wednesday, November 2, 2011

JBL Northridge E150P 10-Inch Powered Subwoofer with 150-Watt Digital Amplifier, Single (Black Ash)

!9# JBL Northridge E150P 10-Inch Powered Subwoofer with 150-Watt Digital Amplifier, Single (Black Ash)


Rate : | Price : | Post Date : Nov 03, 2011 04:57:47
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This front firing subwoofer uses JBL's exclusive FreeFlow flared port technology and a high efficiency, high power amp to help produce low frequency effects the pros would be proud of. Add impact to your movie soundtracks with an E150P Powered Subwoofer from JBL.

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