Sunday, April 29, 2007

Speakers 6" X 9" - Hifonics ZXi-693

The purpose of a loudspeaker is to convert the audio signal in its electrical form to a pressure wave that we can perceive as sound. Like any component in a car stereo system the ultimate goal of the speaker is to do its job without adding any coloration (changing of the original sound) to the audio signal. Ideally only one loudspeaker per side would be needed to reproduce the entire audio spectrum. Unfortunately a speaker that can produce low frequencies has too much mass to be able to produce the higher frequencies. This is why we have coaxial and component speakers. Subwoofers are also used in order to produce the extreme lows of music with impact that can be felt as well as heard. Speakers have an extreme range in quality and price. They also have the greatest impact on the overall sound of a car stereo system.

When shopping for car speakers be sure and listen to the speakers before you buy them. There is no other way to know how the speakers will sound to you. Be sure to bring music that you normally listen to when you audition the loudspeakers. This will give you a better idea of how the speakers are reproducing sounds you are familiar with. Listen closely for low level details and how natural different instruments sound. When you have narrowed down your choices to a couple of different speakers, audition them at length. A poor quality car speaker will become tiresome to listen to, usually because of an exaggerated low and high end. Be sure to adjust the bass and treble as well as the volume to levels that are comfortable to you. Beware of salespeople that do an A/B comparison of loudspeakers for you. When switching between speakers, unscrupulous salespeople will turn up the volume slightly on the more expensive speakers to persuade you to buy them. It is an established fact that people tend to prefer the loudspeakers that they determine to be louder.

Also when choosing loudspeakers, be realistic. If you do not want to modify your existing speaker holes, shop for speakers that will fit in the current space available. Keep in mind depth considerations, especially in doors where speakers may interfere with windows rolling down, dashes where speakers may be limited by ducts for heat and air, and rear decks where depth is limited by torsion bars that run underneath the rear deck. When shopping for subwoofers don't get crazy trying to stuff your car with subwoofers. Consider how much room you have and how much of it you are willing to sacrifice to achieve the low end. This will determine size as well as enclosure type for the woofers you choose.

Hifonics ZXi-693 Speaker 6"X9"

6x9inch 3 way 425w spkrs / Size: 6x9" / Type: 3-Way / Mounting Depth: 3.51" / Maxx Power: 550W / Suggested Nominal Power Range: 2 to 110W / Frequency Range: 43Hz-24kHz / Weather-Resistant Butyl Rubber Surrounds / Swiveling 12mm Tweeters With Illuminated Fascia / Component ZXi's Offer: / Tweeter Level Selections : 0 dB / - 3 dB / + 3 dB / Ultra-Rigid Titanium Ceramic Composite Cones / Low Profile MaxxFitt™ Chromed Speaker Frames / Neodymium Powered 12mm Tweeter Dome / ZXi Component Tweeter Offers Mounting Flexibility / Low-Profile Anti-Resonant MaxxFitt™ Titanium Chromed Speaker Frames / ZXi's MaxxFitt™ Covers 90% Of OEM Speaker Apps. / Multi-Mount Component Tweeters; Flush Mt, Surface Mt, And Angle Mt / Sound Light™ Speaker Illumination Technology / 12mm Neodymium Silk Dome Tweeters / Ceramic Titanium Composite Cones / Weather-Resistant Butyl Rubber Surrounds / 360° Radial Cooled Motor Structure / Swiveling Tweeter Elements

Learn more about our wide selection of Speakers, and our online monthly specials, exclusively at FIMV.com

Wednesday, April 25, 2007

Subwoofers 12" - Performance Technique ICBM-5612


To choose the right subwoofer, you really have to understand how different subwoofer designs act in different situations and how they work with the rest of your system. We have always believed that the better you understand how to get the most out of your subwoofer investment, the happier you will be when you start to use your new subs. We find we need to teach most customers the fundamentals of subwoofer design and get rid of some misconceptions they may have before they really understand what they need. We don't claim to know everything, but years of experience in all situations has given us insight.

The two biggest determining factors in choosing the best type of subwoofer you need are the subwoofer's specific application, and the type of enclosure you are going to use to reproduce the frequencies right above your subwoofer crossover point.

Performance Technique ICBM-5612 Subwoofer 12"

Dual Voice Coil Aluminum Cone/ Rubber Seal Gasket/ High Temperature 2" 4 layer Voice Coil/ Air Vented Aluminum Former/ Dual Voice Coil/ Extra Large Rubber Edge Surround/ Bumped Plate for Maximum Excursion/ Excellent For Sealed And Bandpass Enclosures /60 oz Magnet Structure/ 600 Watts Max Power/ Frequency Response 25Hz - 800Hz/ 2-4-8 Ohm Operations/ Screw Block Terminals

Learn more about our wide selection of subwoofers, and our online monthly specials, exclusively at FIMV.com

Tuesday, April 17, 2007

Amplifiers - 4 Channel - Volfenhag ZX-8300

A CD or cassette radio produces no more than a maximum of nine "real" watts into four speakers given the power it's getting from the car's electrical system. So what if you want more than nine real watts to power each of your four speakers? You need an amp.
It's true that amplifiers will give you more power, which will let you play your music more loudly. Amplifiers also improve the sound quality of your music at all volume levels.
An amplifier's job is to take a signal from a source (input) and make it larger (gain). The hard part is amplifying the signal without adding any "artifacts" or distortion. Amps must have a power supply strong enough to keep them going and must store enough power (current) to deliver all of the transients (drum kicks, power chords, the slap of a bass guitar) in the music.

Tri-Mode Capability2 Ohm Stable StereoRCA Input, Low & High by pressing one switchRCA Preamp Line OutputSelected X-Over HPF/Full/LPFHPF: 40Hz - 250HzFull: 15Hz - 30KHzLPF: 40Hz - 250Hz0dB & 18dB Bass Boost2 Ohm Stereo/4 Ohm MonoPWM Mosfet Power SupplySoft Delayed Remote Turn OnBlue Light Illuminated TerminalsBlue Light Illuminated Cooling FanBlue Light Illuminated Right & Left HandlesAdjustabel Input Sensitivity (0.2V - 6V)Remote Bass Control w/ 20 ft. WireDual Color Indicator LED (Power & Protection)Ultra Slim 1 1/4" Height Easy InstallationMax Power Output: 300W x 4 (1200W)Power Output @ 2 Ohm: 150W x 4Power Output @ 4 Ohm: 100W x 4Bridged Power @ 4 Ohm: 300W x 2THD @ 2 Ohm: <>

Learn more about our wide selection of amplifiers, and our online monthly specials, exclusively at
FIMV.com