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admin — Thu, 29 Oct 2009 01:21:58 +0000

Choosing a Car GPS Navigation System

admin — Wed, 13 Aug 2008 03:02:35 +0000

Decide how often you intend to use the system. Inexpensive systems simply plug in to your car’s cigarette lighter and are small enough to store in your glove compartment, but they’re not as user-friendly.
Consider the layout of your car. Some systems come with a monitor that displays a map. The monitor is commonly installed on the dashboard or on a pedestal extending from the dashboard. In some cars, such an installation may block air vents or make it somewhat uncomfortable for a passenger to enter or exit the vehicle or sit in the passenger seat.
Select a system that features multiple ways of getting to your destination. This can include by address, by intersection, by a personal address book or via a location selected directly from the map.
Look for a system that gives you vocal as well as graphical directions. The systems that use a map and monitor include arrows that show you the direction of a turn and also indicate where your car is on the map in relation to the destination. Other systems use the head unit or radio to display the name of the street on which you are to make a turn or on which you are traveling. Both of these systems also give you verbal directions as you approach a turn.
Select a system that includes point of interest data. Most GPS systems include locations of airports and other transportation services, ATMs and banks, restaurants, hotels and a host of other sites.
Choose a system that offers frequent updates of the point-of-interest data.
Consider installation time if you are working on a tight budget. Systems that rely on maps displayed on monitors are more complicated and take longer to install than other types of systems.

Car CD Players

admin — Wed, 13 Aug 2008 02:54:23 +0000

Certainly one of the most commonly purchased and replaced pieces of the car audio system is the CD player. People believe that if they replace the CD player in their car audio system that they will have better results and have a better audio system. While this is not necessarily true, it is important that individuals have quality CD players so that they can build a quality audio system. CD players are the means by which music is transferred to an audio system so that it can be turned into music. It is important for individuals to have a quality CD player so that can music is transferred to their amplifier and speakers with a quality that will not distort or ruin the sound.

Car Stereo Amplifiers

admin — Wed, 13 Aug 2008 02:51:50 +0000

Car Stereo Amplifiers

One of the most important pieces to an audio system is the amplifier. Amplifiers are important because they are devices that change or increase the signal or quality of a sound wave. Basically, the amplifier is the thing in an audio system that allows the music to be played loudly without getting distorted or without sounding of poor quality. A good amplifier can make your audio system sound very professional. A good amplifier is the best way to make a good impression and is a very important base for a good audio system.

Police cracking down on noisy vehicles

admin — Wed, 13 Aug 2008 02:45:25 +0000

As part of its “Operation Boombox” campaign to quiet noisy car stereos and loud exhausts, Joliet police have issued more than 110 tickets in recent weeks.

That’s almost half of the roughly 250 tickets issued for such noise violations in the city since the start of the year, Police Chief Fred Hayes said.

Set up last year, the campaign targets intersections where residents have complained of car noise. Officers stand 75 feet away from the intersection and listen for the thump of car stereos that are too loud and the thunder of noisy exhausts.

“We attend neighborhood meetings with our community policing officers and ask what the issues are,” Hayes said. “By far, this is one of the highest complaints. Residents continually complain about loud music disturbing them at all different hours.”

Last year, police issued 300 tickets for car-related noise violations. In addition to writing out $75 tickets to violators, police also tow the offending vehicle, adding another $275.

If police stationed 75 feet away can hear noise from a car at an intersection the motorist can be ticketed. State law prohibits cars from emitting noise that can be heard from that distance, Hayes said.

With the resident’s permission, officers set up surveillance details on front porches or simply pull out lawn chairs and sit on the sidewalk. Once an offending vehicle passes by, the officers radio the vehicle’s description to another officer waiting in a marked squad car.

“Most people driving don’t pay attention to [the officers],” Hayes said. “They say they saw the officers standing on the sidewalk or near a front porch but felt the officer was doing something else and never even thought of turning down their music.”

Hayes said details are set up at all hours, with some as early as 8 a.m. and some after midnight.

Although police are still issuing tickets for noise violations, residents have told officers their streets are somewhat quieter, said Lt. Tab Jensen.

In at least one case, getting ticketed made an offender change her ways: The woman called to say she returned her 2,000-watt car stereo to help pay her fines, Hayes said.

“She said she wasn’t going to have such a loud stereo in her car anymore and that she didn’t realize that she was disturbing other people,” Hayes said.

Better Analog Portable Sound Quality

admin — Wed, 13 Aug 2008 02:40:28 +0000

EE Times reports: Analog vendors boost sound quality in portables

As a growing number of countries adopt legislation that prohibits the use of handheld mobile phones while driving, demand for hands-free kits and wireless headsets is on the rise. The challenging sound environment within automobiles, however, places an increased burden on the audio processing systems within those devices. And with mobile phone users struggling to hear and be heard in noisy environments, system designers are working hard to integrate more-advanced audio processing into portable audio devices.

Mobile products must accomplish these tasks in smaller form factors with better battery life, as well as with echo cancellation and noise suppression functionality. Analog IC makers such as Analog Devices, Maxim Integrated Products, National Semiconductor, Texas Instruments and On Semiconductor are responding with audio chips that improve sound quality by driving louder volume from speakers and removing the output frequency distortions common with DSP- or microprocessor-software-based systems.

One technique is to use a boost converter to drive higher output power. In May, TI (Dallas) rolled the TPA2014D1, which provides output drive capability of up to 1.5 watts per channel across an 8-ohm load, ensuring that volume is maintained even when the battery discharges to its minimum voltage.

TI has also fielded the TPA2016D2, which provides a 1.7-W drive capability across an 8-ohm load. TI said the Class-D amplifier is the first stereo device to incorporate dynamic range compression for automatically adjusting the audio to the desired loudness range while protecting the speaker and preventing clipping and distortion.

On Semiconductor (Phoenix) recently announced the latest member in its BelaSigna family of audio processors, formerly offered by AMI Semiconductor. Marketed under the brand name BelaSigna 300, the high-fidelity audio processors target portable communication devices. The dual-core architecture lets multiple advanced audio algorithms, such as echo cancellation and noise reduction, run simultaneously while maintaining ultralow power consumption. A 24-bit open-programmable DSP core and a configurable accelerator signal processing engine deliver the flexibility of a generic DSP with the power consumption and size of a fixed-function ASIC, On Semi said. Advanced analog audio inputs, combined with the 24-bit signal path, boost audio quality.

Claiming to have lowered the bar for power consumption, National Semiconductor Corp. (Santa Clara, Calif.) has brought out the first device in a line of audio products incorporating far-field noise suppression technology. The technology delivers more natural-sounding voice quality by eliminating the output-frequency distortions and other audio artifacts common with DSP- or microprocessor-software-based systems that use subband frequency processing algorithms to implement noise suppression.

National’s PowerWise LMV1088 dual-input microphone array amplifier reduces background noise and improves voice communication clarity in mobile phones, two-way radios and powered headsets. It consumes one-tenth the power (1 mA) of comparable DSP- or microprocessor-software-based systems.

As speaker apps become more compact, stereophonic sound quality is jeopardized. The 3-D stereo enhancement in the MAX9775 from Maxim Integrated Products emulates stereo sound in situations where the speakers must be positioned close together. Wave interference cancels the left channel in the vicinity of the listener’s right ear and vice versa, yielding an “apparent” separation between the speakers that is a factor of four or greater than the actual physical separation, Maxim said.

The part integrates a mono 80-mW DirectDrive receiver amplifier, a stereo 80-mW Direct-Drive headphone amp, and a Class D stereo 1.5-W audio power amp. Maxim (Sunnyvale, Calif.) also offers the MAX9776, which provides the mono 80-mW receiver amp, the stereo 80-mW DirectDrive headphone amplifier and a mono Class D amp.

Analog Devices’ SSM2317 is a fully integrated, high-efficiency Class-D audio amp. The application circuit requires a minimum of external components and operates from a single 2.5-V to 5.5-V supply. It is capable of delivering 3 W of continuous output power with less than 1percent THD + N driving a 3-ohm load from a 5.0-V supply. The SSM2317’s high-efficiency, low-noise modulation scheme does not require external LC output filters. The modulation continues to provide high efficiency even at low output power. Spread-spectrum pulse density modulation provides lower EMI radiated emissions than is provided by other Class-D architectures.

Pop-and-click suppression circuitry minimizes voltage glitches at the output during turn-on and turn-off.

Stereo Equipment

admin — Wed, 26 Mar 2008 23:36:56 +0000

Welcome to Stereo .net.

Reproduce, record and process sound. This includes microphones, radio receivers, AV Receivers, CD players, tape recorders, amplifiers, mixing consoles, effects units and loudspeakers.

* JBL – Maker of home audio, car audio, and home theater speakers.
* Marantz
* Harman/Kardon – Offers high-performance audio products for the digital revolution including speakers, home theater, car audio, and more.
* Aiwa
* Kenwood Corporation
* Nakamichi
* AudioControl – Designs and manufacturers equalizers, audio analyzers, crossovers and specialty signal processors.
* Niles Audio – Range of products includes amplifiers, automated switching systems, and speakers.
* Onkyo
* TEAC
* Goldmund – Swiss Made high technology audio and video luxury products.
* ZVOX
* Harman International
* MSB Technology
* Accuphase – Highend home audio equipment.
* Lenoxx Electronics – Manufacturers of CD players, cassette players, walkabouts.
* NAD Electronics International
Provides a full range of audio components for music systems and home theaters.
www.nad.co.uk

Complete Stereo Systems Review Denon — denon avr 3300 surround system
Complete Stereo Systems Rating Bose Wave Cd Radio — Bose Wave Radio
Numark Dm200x — Mixer
Jvc — Home Stereo
Bose — bose acoustic wave music system
Used Bandw Cc6 S2 — B&W CC6 S2 Review
White Westinghouse — Shelf Stereo System
Sony — CD Player
Sony Es777 Receiver — Sony ES777 Receiver
Nht Nht Home Theater Speakers — Now hear this!
Denon Ud M30 — Terrific little unit
Sony Mhc 1600 — Sony MHC 1600 Mini Hifi
Aiwa Xr M200 — Compact Stereo
Kenwood Htb504 — Hometheater in a box
Bose 3 2 1 Home Theater System — Great surround sound from two little speakers
Complete Stereo Systems Review Kenwood Htb 504 — On-Line Purchase of Kenwood Home Theatre-in-a-Box
Sony Complete Stereo Systems Rating — Sony 60 CD Changer-Good Product
Stax Sr Lambda Pro Signature — Unmatched accoustic experience
Bose 321 — Bose 321 Home Theater System
Creative Megaworks 510d — MegaWorks 510D 5 speaker system
Nakamichi Soundspace 5 — Nakamichi Soundspace 5
Sony Mhc 1600 — Sony MCH 1600 Review
Nht Superone — Great speaker for the money
Sony — Sony Mini-system
Teac Cr H130 — Tiger Fuzzy Logic Rice Cooker
Panasonic Scak 600 — great buy !
Sony Mhc Bx3 — Sony Mini Hi-Fi Component System
Harmon Kardon Avr510 — great tuner for the buck
Parasound Hca 1206 — Home Theatre THX Class “A” High Current Amplifier
Pioneer ???(vs?)711 — Pioneer Home theatre
Sony Complete Stereo Systems Review — Sony Home entertainment systems
Complete Stereo Systems Rating Onkyo — Onkyo great system
Nakamichi — Nakamichi Stereo
Bose Lifestyle 2500 — Bose 2500 Surround Sound
Sony — Receiver/5 3 inch box spearkers=sub
Bose — LifeStyle 30-II
Bose — Bose Accoustic Wave System
Sony — Great durability, portability
Bose Series 25 — Bose Surround Sound Model 25
Rca Rp 9325a — Mini System
Aiwa Jax S5 — AIWA mini comp. system
Kenwood Sovereign — THX Home Theater System
Klipsch Klipschorn — Klipschorn
Onkyo Antera — home theater sound
Bose Acoustic Wave Music System — Bose acoustic wave music system
Panasonic Sa Pm141 Complete Stereo Systems Review — Useful product
Complete Stereo Systems Rating Sony Cmt Ep303 — Sony Component System
Krell Kav 250a — Krell KAV 250a
Bose — Excellent Company
Nad T 770 Surround Sound Receiver — NAD T-770 review
Aiwa Cxnc3 Rw — AIWA doesn’t disappoint
Sharper Image — great little system
Onkyo Ht S770 — HT-S770 HTIB
Totem Acoustics Mani 2 — Outstanding Monitor Speaker: Totem Mani-2
Bose Wave Radio — Bose Wave Radio, a little pricey but the most incredible sound is nothing short of amazing
Aiwa Cx Naj20 — Good Power But Lacks Spectrum
Bandw 602 S2 — B&W DM 602 S2 Speakers
Bose 123 — Ecellent
Bang And Olufsen Beosound 1 — Beosound 1
Outlaw 950 Pre Amp — Outlaw model 950 7.1 Surround Pre-Amp A true best buy!!!
Jvc Complete Stereo Systems Review — Review 1
Sony Mhc Gx450 Complete Stereo Systems Rating — Sony MHC GX450 shelf stereo
Sony — Good sounds
Onkyo Mc 35tech — small time stereo big time sound
Aiwa Cx Na888 — The best.
Kenwood Ka 7100 — Kenwood KA-7100
Nht Super One Speakers — NHT Super One Speakers
Hifi.com Movieworks 408 — Dolby digital direct to your door
Sharp Cd C422 — Sharp Home Stereo
Bose Wave Radio W Cd — Best Sound
Sony Cmt Ex1 — Stereo with style, for a price – Sony’s CMT-EX1
Pioneer Ns 5 — Pioneer NS-5
Aiwa — AIWA: A pretty good bargain
Philips Fw C35 — Mini Hi-Fi system, Philips
Onkyo Tx Ds575x — Onkyo Home Theater
Sony Mhc5av Complete Stereo Systems Review — sony mhc5av review
Technics Complete Stereo Systems Rating — excellent
Sony Cmt Ex1 — Sony CMT-EX1 – Sexy & Spunky!
Aiwa — stereo buyers take notice
Aiwa Cx Naj20 — AIWA CX-NAJ20 Compact Stereo System Review
Technics 1210 — Turntables to suit the 1000 year reich.
Aiwa Cx Naj20 — Mini-Stereo Worthwhile