Choosing,car,amplifier,How,Muc car Choosing a car amplifier
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How Much Power?Some people will say that you can never have enough power! The poweroutput of the amplifier will ultimately govern the maximum volume thatwill be available in the system. However the power output of theamplifier must be carefully matched to the power that the speakers canhandle. The values that should be matched are the RMS output value ofthe amplifier and the RMS input value of the speakers. Speakers oftensupply the peak music input power as well but this shouldn't beconfused with the RMS value. The peak value is the power that thespeaker can sustain for short bursts but not continuously.If the RMS input power of the speaker is regularly exceeded then itwill lead to premature failure of the speakers which will probably becaused by a mechanical failure.How Many Channels?The number of channels correspond to the number of speakers that canbe driven from a single amplifier. The most popular choices are either2 or 4 channels.4 channel amplifiers often give the ability to create a bridgedconnection. This is where 2 channels are combined to give approximatelytwice the output of a single channel. This gives some flexibility inthe system for example you could use 2 channels to power the high/midrange speakers and a single bridged channel for the sub-woofer to givesome extra depth to the sound.Amplifier InputsOne common problem that maybe experienced is when the factory headunit is to be maintained. The input connections to an amplifier usuallyconsist of a set of RCA sockets. If you are lucky the head unit willprovide RCA output connections which can be directly connected to theamplifier. In the majority of cases some kind of adapter will berequired to reduce the output level of the head unit to a suitablevalue for the input of the amplifier.Power SupplyThe supply that the amplifier is connected to is vital to ensure apure clean sound. To get the optimum sound the supply cables should berouted directly to the battery ideally keeping the cables as far fromthe other cables as possible. This is to prevent any spurious 'noise'being picked up which will manifest itself as buzzes, hums and clickson the audio from the amplifier.The amplifier itself is switched on and off by connecting the supplyusually used for an electric aerial straight to the remote input of theamplifier.If buzzes, clicks and hums are present on the audio then a choke canbe placed in series with the power supply lines which will reduce andhopefully eliminate it.LocationThe final point that shouldn't be overlooked is the location of theamplifier. The amplifier must be located in a position where it hasgood airflow to ensure that it doesn't overheat. In the event ofoverheating the amplifier will probably shutdown or at worst it willfail.It should also be located somewhere where it will not be exposed toelectromagnetic radiation such as too close to the engine etc.An good quality sound system will make an excellent addition to any modified cars. Article Tags: Head Unit
Choosing,car,amplifier,How,Muc