![]() ![]() The excess electricity is eventually converted to heat energy. Only a small percentage of this electricity will be utilized by speakers, which puts the efficiency of a typical Class A amplifier at an appalling 30%. On the other hand, there are two major drawbacks to this continuous conduction. ![]() The benefit of this is that it allows Class A amps to provide the purest signal path out of all. Where amplifiers are concerned, efficiency is a measure of how much Alternating Current (AC) a device can pass to another while consuming the least amount of Direct Current (DC).ĭue to differences in the circuitry, efficiency varies between each class of amplifier:īecause of the simple way in which their circuits are designed, Class A amplifiers conduct electricity 100% of the time. There are four main classes of amplifiers: A, B, A/B and D and the main distinguishing factor between them is efficiency. When you’re browsing through 4-channel amplifiers, you’ll come across talk of ‘classes’ but what exactly does it mean? In this section, I’m going to be talking about the factors you need to consider when you’re picking an amplifier, including a few important technical specs.ĭon’t worry, I’ll go easy on the jargon and break down everything into the simplest language. In order to buy a unit that suits your needs perfectly and is compatible with your existing car stereo set up, you need to know a little bit about amplifiers. Lastly, the amplifier was compact enough so that I had multiple mounting options.I liked the variable high-and low-pass filters as they allowed me to minimize the distortion in the sub-bass and upper-bass regions.The last thing I wanted was to blow out my speakers by cranking the volume too high. First of all, the RMS of 50 watts was perfect not too high and not too low.There were several things about this amplifier that strongly appealed to me: In the end, I chose the one that I thought had a bit more edge compared to others: the Kenwood KAC-M3004. The Best Overall 4-Channel Car Amp: Kenwood KAC-M3004Ĭhoosing my overall favorite was quite a difficult task, especially considering that all these amplifiers had many similarities. The Best Overall 4-Channel Car Amp: Kenwood KAC-M3004.The process is simple as you just need to move the speaker wire into different channels. An amplifier with four channels can be bridged into two channels to power the speakers or subwoofers. Many people choose to bridge their amplifiers. This process drives more power to your cars audio components. A 4-channel amplifier can be bridged to double the output of power. If you want to combine the amps four channels into two channels, you can do this in a process known as bridging. This area has enough ventilation room for the amplifier. The trunk is another common place for installation. This space allows the amplifier to be hidden from view and remain close to the stereo system. Many people choose to install an amplifier under the seat in the rear area. If you install it in a tight space, the amp will not properly dissipate heat and could shut down. You want a place where the amp has enough air around it. If you are looking for a good place to install an amp, you need to take a few measurements of your vehicle. Where is the ideal place to install an amplifier? Any component that needs a power boost can use an amp. If you have four speakers, you will need a 4-channel amplifier. They often are connected into one mono channel. Woofers and tweeters do not need much power. You can connect any piece of stereo equipment to this amplifier. What components can connect to a 4-channel car amplifier? There are some components that can share a channel but most will need a separate channel for the best results. The channels allow your component to get the maximum amount of power boost without damaging the equipment. If you have a lot of equipment, you will need to purchase an amp with more channels. The 1-channel amps are often referred to as monoblocks. Most amplifiers are available in a 1-channel, 2-channel, 3-channel, 4-channel, or 6-channel model. These channels are designed to help you power your equipment. Why do amps come in different channels?Īmplifiers are available in a wide range of channels. Before you make a purchase, here are a few things to know about amplifiers. There are many models that can be found on eBay. Pump Up Your Sound With a 4-Channel Car AmplifierĪ 4-channel car amplifier can power up your speakers or subwoofers and give you more sound clarity. ![]()
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