Amplifiers discount

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DeffAudio was established in 2005 when we noticed
a lack of inexpensive car audio dealers on the
internet. Our main goal is to supply car stereo
products at the lowest possible price while still
allowing our employees to earn a living. We try
to provide the best information we can about our
products and help as much as we can but we are
not a installer and cannot offer installation
assistance.
Many people misunderstand how you can blow a
speaker most thing its all about too much power
and so they buy amps that are less than their
speakers Watts rating. Although this is true its
not the most common way people blow their
speakers. Under powered When a speaker is under
powered and the amp is turned up it can "clip"
which is a square sound wave that will melt the
speakers coil apart. Over powered There is a
fine balance of speaker power to amp power that
you want. It is best to get an amp that is more
powerful then the speakers and turn down the
output at the amp level this way it will not
distort or clip and the lowered level at the amp
level will stop the amp from sending too much
power to the speaker. Age and heavy use Just
as with anything else in this world if you use it
to its limits too often it will wear out speakers
are no exception. Plugging inputs while the
system is on Always make sure when you plug in
any inputs the power to the amp/receiver is off,
this can cause a nasty sound and usually nasty
popping sounds are not good for your
speakers. Matching amp power and speaker power
If your speaker is 150 W RMS get an amp that
does 150W RMS per channel. You are best to go
over than under but try to keep as close as
possible to each other. You want to make sure the
amp you choose is capable of supplying from 75
to 150 of the speakers /sub woofers total RMS
rating. So add up all the RMS Watts for the
speakers and or sub woofers you are going to
attach to the amp and make sure the amps total
RMS wattage is within 25 up or down from that
number. RMS and Max Watts You want to pay more
attention to the RMS but also make sure the max
of the amp doesn't exceed the speakers max. RMS
what a speaker/Amp can do all day long Max
the max output a amp can do or max input a
speaker can take.
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Ohms Just to complicate things some more make
sure you match the ohms of the speaker to the
ohms of the amp as well. Most run 4 ohms until
you get into bridging and well we will leave that
to another day and a later article. Here is a
link to a great wizard to hep you wire your sub
woofers correctly. The 12 Volt Subwoofer Wiring
Wizard Amplifier Power Wiring Help The two most
important tings when determining the Gauge () of
wire needed are How long will the wire need to
be from battery to amp How much RMS current does
the amplifier draw Below is a chart to help you
determine the right Gauge (AWG) wire you will
need. Most kits come with 20' of power cable
which should work for the average car. Always
round up better to overshoot, going under could
cause the cable to overheat and lead to bad
things. Also make sure your fuse is sized
correctly 10 AWG - fuse at 60A 8 AWG - fuse at
100A 4 AWG - fuse at 150A 1/0 AWG - fuse at 350A
8 10 4 1/0 Gauge (AWG) Wire Chart 10' 12' 14' 16'
20'
RMS W
4' 6'
8'
24' 28' 32' 42'
200W 16 14 14 14 12 10 10 8 8 8 4 4
240W 16 14 12 12 10 10 8 8 8 4 4 4
300W 14 12 12 10 10 8 8 4 4 4 4 4
400W 14 12 10 10 8 8 8 4 4 4 4 1/0
500W 12 10 8 8 8 4 4 4 4 4 1/0 1/0
600W 12 10 8 4 4 4 4 4 4 1/0 1/0 1/0
700W 10 8 8 4 4 4 4 4 1/0 1/0 1/0 1/0
800W 10 8 4 4 4 4 4 1/0 1/0 1/0 1/0 1/0
900W 10 8 4 4 4 4 1/0 1/0 1/0 1/0 1/0 3/0
1000W 8 4 4 4 4 1/0 1/0 1/0 1/0 1/0 1/0 3/0
1200W 8 4 4 4 4 1/0 1/0 1/0 1/0 1/0 3/0 3/0
1400W 8 4 4 4 1/0 1/0 1/0 1/0 1/0 3/0 3/0
1600W 4 4 4 1/0 1/0 1/0 1/0 1/0 3/0 3/0 3/0
1920W 4 4 1/0 1/0 1/0 1/0 1/0 3/0 3/0 3/0
2200W 4 4 1/0 1/0 1/0 1/0 1/0 3/0 3/0
2400W 4 4 1/0 1/0 1/0 1/0 3/0 3/0 3/0
3000W 4 1/0 1/0 1/0 1/0 3/0 3/0 3/0
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Speakers can "blow" in two ways thermal or
mechanical, which are just as they sound
overheating from too much power or clipping from
under powering and sometimes just from use and
age.
Here are some signs that tell you a speaker is
blown (put your EQ at flat or 0 to test) If
there is no sound at low or normal
levels Distorted buzz like sound or rattling at
higher levels If you hear music, but it is
heavily distorted, then you may have a partially
blown speaker. Best way is to use a ohm meter,
make sure the speaker is off and set your meter
to ohms and put the leads on the positive and
negative of the speaker it should read 1.0 if it
reads infinity its blown.
Deff Audio 1945 Grove Dr. Erie, PA
16505 Telephone [phone] http//www.deffaudio.
com/