Qualir Automobile Electronics Co., LTD, founded in 1998, aims to create automobile owners's drive more quickly and cosily by providing automobile electronics of Good quality and Reliability. In May 1998, Qualir started to create and generate Car CD, VCD Players and property CD,DVD Players. In March 2003, Qualir began to develop and create Automobile Mp3 players,Car DVD Players,and effectively developed Auto DVD Players with Built-in GPS function in 2004. In June 2007, Qualir made the decision to create a platform for direct wholesale of Auto electronics. In September 2007, Qualir's wholesale Dept was successfully founded and our on the internet wholesale shop www.AutoDVDGPS.com was lastly completed.

1. Tips on Car Stereo Troubleshooting
by qualir - http://www.autodvdgps.com/blog reply-pdf@qualir-mail.com
date:2011-12-06
Tips on Car Stereo Troubleshooting
2011-05-17 09:16:13 By qualir
Car stereo system is an important entertainment system in your car. A good music could help a lot to de-stress
and also make your long journey more funny.
The fact is that car stereo is easily to encounter some problems, since the system is not fixed firmly. Every time
the car goes to through a bump, the jerk will cause the unit to move. That will result in loss or deteriorated
sound. similarly, leads to wire connections result in a hiss that is very audible while your music is playing.
Usually, owners of high-end car stereos complain about the in regards to the lack of deficiency of bass through
the subwoofers. This problem lies to the positioning of the subwoofers, not in the car stereo. So you need to
install in the rear end of the car, in order to give more depth to low frequencies. Here are the tips to
troubleshoot car stereo problems.
Firstly, check the connections. You may find that the left or right speaker is silent, when you are listening to
some music. That’s because the wire are not connected properly. You need to trace down the wires to the
connectors and remove them. You could use a clean cloth to wipe off the dust if any connect the wire again. It
could make your speaker working again. If the wires are worn out it, you need to replace them with a new set of
wires.
Sometimes you may notice that when we raise the volume control, and the sound coming through the speakers
gets distorted. The distorted effect is very vivid when the sound of a snare or bass drum comes through the
speakers. Check the cones of you speakers and subwoofers. The main cause of distortion at high volumes may
be the cones of the speakers being torn or worn out. High density kewlar cones are recommended for music
played at high levels.
The speakers you install with your car have to be placed at specific locations to present out optimum
delivery of sound. Most car stereo owners ignore the alignment of tweeters which shape at any
height frequencies of music. The best place for silk dome tweeters to be installed is somewhere at
the dashboard. Should they be placed behind, you will have a collision of high and low frequencies among
subwoofers and tweeters resulting inside a muffled sound. Avoid installing speakers on the back of
seats simply because this may cause an influx in sound dynamics. The dynamics of sound are dependant
on the disposable space in you car. Hence it is of essential importance that in small cars you place your
speakers very strategically.
Although most head units come with a built-in amplifier, they're insufficient to power the subwoofers. If you
find that your speakers usually are not giving that desired effect, it could be because of the
fact your existing amplifier isn't powerful enough to drive the speaker setup. If you've installed 500 watt
speakers and possess powered them by way of a sixty or eighty watt car amp, the speakers won't give you
the optimum output. You could choose external amplification to fit your speaker setup.
Problems linked to a vehicle stereo when diagnosed at an earlier stage can save lots of time and cash. If
the problem persists despite implementing the required changes, you can travel to your nearest service
center to rectify the issue.
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