This will mitigate the problem of overdriven and distorted speakers and give you plenty of extra power for bass response and additional tweeters. If you want to connect an additional sub-woofer, it will be safer to go for 75 watts or above.
However, for more dedicated audiophiles, 50watts probably won’t do it. Although it is possible to bridge channels for a higher power output, it will leave you with fewer speaker options. For the average user who is not relying on massive bass output with sub-woofers, a 50-watt RMS rating will give you great volume and clarity. A higher-quality class D will produce less of this signal noise, but it will cost you. Because of the way they function, when the gain is up, there is a noticeable hiss coming from the speakers. The one drawback of class D amps is noise. They are also almost 90% efficient in some models, resulting in less heat than A/B amps. They have the benefit of fitting into a much smaller chassis, making them far more compact and giving them the ability to be stowed away conveniently under the seat. However, class D amplifiers are catching up quickly to the audio quality produced by A/B class amplifiers. Class D amps have yet to come close when it comes to accurate sound production. Until recently, these amps have always been the go-to due to their high audio quality, lack of noise and distortion, and full-range application. These amplifiers are usually around 60% percent efficient, the transistors inside being on only around half the time, even when there is no audio signal present. Too much heat equals a burned-out amplifier. Power being drawn and not used for output of audio creates heat. This means that it can never put out an equal or higher amount of power than what it draws. An amp’s efficiency rating is in the ratio of what it can put out, divided by its power consumption. Every amp will consume more power than it can feasibly put out. The class of amplifier is defined by the way the amp combines power and signal. Class D amps will give you far more efficiency, but less audio quality. Class A/B amps are the least efficient but offer the best sound fidelity. The main difference comes down to efficiency. A/B Class and D classĪnother important consideration is your choice of amplifier class. It also gives you far cleaner audio quality. Put simply, these block frequencies from getting to speakers that cannot handle them, preventing distortion or even blown speakers. A low-pass crossover allows frequencies below the chosen cut-off.
A high-pass crossover allows frequencies above the chosen cut-off frequencies to pass through to your speakers. It’s even better if they are adjustable, but this is not essential. Ideally, you want your amplifier to have both high-pass and low-pass crossovers. However, there are important considerations when buying a four-channel amplifier. Ignore the flashy terms and technical overwhelm - we’ve got you covered! We’ve put together a list of the best four-channel amplifiers available, to help you make the right decision for your needs. Terms like “high-pass crossover” and “ohms” can make you just want to stick with your standard car stereo.
Alternatively, two channels bridged together will give you more power for sub-woofers.įinding the right amp to fulfill your dreams of window-shattering bass can be confusing. You can connect two speakers to each channel, which will give you the option of having up to eight speakers. One major advantage of a four-channel amplifier is the option for bridging channels. A four-channel amp will give you the most flexibility, power, and seat-shaking bass potential. One of these components is a separate amplifier, which will help your speakers produce the best sound that they are capable of. To get the best audio experience possible in your car, you’ll need to bring together a few key components that depend on each other for optimal music reproduction.
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