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An amplifier is the heart and soul of your sound system and the difference between distorted sounds and loud, clear bass. The wrong amplifier can cause other components to fail and higher expenses in the long run. This guide includes some of the best four-channel car amplifiers on the market.
Rockford Fosgate Prime 4-Channel Amplifier
A premium level 4-channel car amplifier that is able to produce 300 watts in a small and compact box that is easy to install.
- Highly-functional car amplifier that can fit easily in the trunk or beneath a seat
- It’s loud and features over current and short-circuit protection
- Weighs around 7.5 pounds, which is a little heavy
- Slightly expensive
Planet Audio 4 Channel Car Amplifier
This amplifier is flexible and can work with any factory or aftermarket head unit and speakers.
- Durable and offers brilliant thermal protection
- Has a built-in crossover
- Comes with a long six-year warranty
- Cable connections can easily break if overtightened
- Too big to fit in certain locations
Rockford Fosgate 600 Watt 4 Channel Amplifier
This amplifier has a fantastic build quality and lots of power with 600 watts between the four channels. It is also easy to install.
- Output is higher than many of its rivals
- Astounding sound quality is hard to beat
- Also has added EQ and bass boost functions
- Price is quite high in comparison to many of its competitors
- Heavy and a bit bulky to fit in certain spaces
Q: How many channels do I need on a car amplifier?
It depends on how many speakers you want to power. A single-channel is ideal for a subwoofer only, while a two-channel amplifier can normally push two speakers and a subwoofer. Four-channel amplifiers are versatile because they can power a full speaker system and subwoofer.
Q: What does bridgeable mean?
This means that two channels can be connected to power a single speaker in order to produce more power. Most amplifiers have this feature, and some also have bass boost or crossover features that can be used on two out of the four channels.
Q: What is signal-to-noise (SNR) ratio?
Rated in decibels, signal-to-noise ratio is a way to compare the amount of audio signal an amplifier has against the amount of internal electrical noise it has. Good amplifiers have an SNR of 90dB and above.
We went with the Rockford Fosgate Prime 4-Channel Amplifier as the best four-channel car amplifier. It’s a high-quality compact amplifier that provides clear, crisp and loud sound. For a great amplifier at a better price, consider the Planet Audio 4-Channel Car Amplifier.
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