- BrandSkar Audio
Crunch PX1000.4 Power Amplifier (Class Ab, 4 Channels, 1,000 Watts), 3.70in. x 12.60in. x 10.80in.View on Amazon
BOSS Audio Systems R1004 4 Channel Car Amplifier – Riot Series, 400 Watts, Full Range, Class A/B, 2 Ohm Stable, IC (Integrated Circuit) Great for Car Speakers and Car StereosView on Amazon
- BrandBOSS Audio Systems
4 Channel High Power Amplifier - Slim Stereo 4 Channel Car Audio Stereo Amplifier Amp 4OhmView on Amazon
Last update on 2023-03-28 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API
Efficiency And Class
When looking into 4-channel amplifiers, you'll come across the term 'classes,' but what does that mean? Amplifiers are divided into four categories: A, B, A/B, and D, with efficiency being the most important distinction. Efficiency is a measure of how much Alternating Current (AC) a device can pass to another while using the least amount of Direct Current (DC) in the case of amplifiers (DC). The efficiency of each class of amplifier varies due to changes in circuitry.
The majority of customers prefer an amplifier that allows them to connect nearly all of their compatible devices. You should check to see if the amplifier you're purchasing has enough inputs for various plug-ins. All of them should be accommodated by the amplifier.
The ratio of signal to noise
The rushing electrons within an amplifier always produce some noise. The main goal of a decent amplifier is to make sure that noise is barely audible. This means you'll hear more music and less background noise. As a result, the higher the ratio, the better!
Output of power
Power output is roughly proportional to how loud you can play the music, but you don't need as much energy as you may think. The output of a perfect amplifier is twice that of the speaker. For example, a speaker with 8 ohms and 350 W programming will need a 700 W amplifier to drive the same 8 ohms load. As a result, whether an amplifier with a lower or higher amplification is used with 8 ohms, sound amplification will be imperfect.
It's feasible to figure out which side of the stage the artist is on and which side the instruments are on. The amount of unwanted left signal that mixes with the correct output is referred to as crosstalk. For clean audio, crosstalk should be kept to a minimum. When there is a lot of crosstalk, the sound isn't as clear.
The optimum factor in every amplifier is frequency coverage. Every amplifier has a frequency range that it can operate in. Before purchasing an amplifier, make sure it has a wide frequency range for a variety of sound transmissions.
Finding the right amplifier for your car's sound and your listening preferences can be time-consuming and difficult. You'll be on your way to buying the amp you want with this information, and you'll avoid getting ripped off.