Car Av receiver Principles

Legacy Complete Amplifier/Subwoofer/Capacitor/Installation Package for Car

Lets start by recognizing the different types of amplifiers. You've got your basic mono channel amplifier, your two channel amplifier, and then you have multiple channel amplifiers. A "channel" is simply one set of positive and negative terminals (+/-) coming out of the amplifier that you use to supply power, or drive, to your speakers or subwoofers. A mono channel amplifier has one set of terminals, two channel amplifiers have two, and multiple channel amplifiers range from anywhere between 3-5 channels. Now lets go into details discussing their best intended applications. We'll also answer the questions that are asked most frequently.

Mono Channel Amplifers- Mono channel amplifiers tend to be class "D" amplifiers. Class "D" amplifiers have a high power to heat ratio, which is exactly what you are looking for when powering subwoofers that demand a lot of power. Class "D" amplifiers are also known to be very efficient. Since mono channel amplifiers work best at 2 ohms of impedance, they are best suited to drive either a singe 4 ohm "dual voice coil" subwoofer, or two 4 ohm subwoofers that only have "one voice coil" each.

Why are mono channel amps best suited for these setups? Because every speakers presents a load impedance to the power that is supplied to it from the amplifier. This load impedance is measured in a unit known as "ohms". Most subwoofer speakers present 4 ohms of resistance. If wired correctly, you will lower the load impedance that the amplifier sees. You will lower the impedance down to 2 ohms, which is where most mono channel amplifiers are build to perform the best.

Two Channel Amplifiers- A two channel amplifier is an amplifier that can operate one right, and one left hand channel. It is basically two mono channel amplifiers in a single box. Since two channel amplifiers are typically stable when presented with 4 ohms of impedance, they are best suited to drive either one 4 ohm "single voice coil" subwoofer, or two 4 ohm "dual voice coil" subwoofers. To run these setups, you have to "bridge" the channels coming from the amplifier. Not all two channel amplifiers are bridgeable, so be sure that your two channel amp is bridgeable before you buy it.

What is "bridging"? Lets say that you are looking to purchase a two channel amplifier that is rated at 500 watts RMS. You must know that the amplifier does not supply 500 watts of power from each channel. Instead, each channel alone will supply around 200-250 watts. In order to get the advertised 500 watts, you have to combine the two channels into one channel. This is called "bridging" the channels.

*Note- Be careful when "bridging" the connections because if it not done properly, then you will destroy your amplifier.

A number of Funnel Amplifiers- A number of channel amps enable you to connect a number of loudspeakers (usually top a couple of and also backed a couple of) although nonetheless enabling you to take control of your harmony and also fading possibilities. When searching for a number of channel amps, you will notice that although the majority are nonetheless scored inside the 2-4 ohm impedance variety, some are generally scored close to 20-40 ohms involving impedance. The sole time you'd ever will need an amplifier as of this a lot of the impedance rating is when you had been to be able to insert a number of loudspeakers in a very "series". A number of channel amps enables you to run subs, however you must carry out sure your amplifier's routes are generally bridgeable because most of that time period, each and every channel of a a number of channel guitar amp doesn't hand out practically adequate watts.

What is "series" cabling? As an alternative to cabling each and every presenter separately to each and every channel of your guitar amp, it is sometimes recommended that you insert several loudspeakers collectively. When the loudspeakers are generally sent collectively, you need to insert the entire unit involving loudspeakers to at least one channel from the guitar amp. To insert your loudspeakers collectively, you simply operate a presenter insert from the good terminal of a single presenter to the unfavorable terminal of some other presenter. After this is accomplished, you run presenter cables from the routes of your respective rev in your leftover good and bad airport terminals on your own loudspeakers.