Most 5-channel amps are full range and can hook up to speakers and subs. We are talking about a bass boost, variable high and low pass filters, and whether the amp is considered full range. The next bonus features you should look for will impact the audio quality. As far as turning on your amp, many with high level inputs have auto-sense turn on, which will automatically activate your amp when it detects a signal. You may also find a subwoofer remote to control the watts to your sub, among other things. The protection mode should also help the amp stay cooler. An amp with a high power rating should have short, thermal, and voltage protection built in. Speaking of high power, finding a unit with protection circuitry will also add a level of safety. You may not have to choose between the amp classes because some 5-channel amps combine the technologies from both. Class AB amps are usually larger, which means placement options are limited. Make sure your 5-channel amp has a way to dispel the heat to prolong its lifespan and performance. There is a way to combat high heat with an excellent and effective heat management system. These are compromises you have to make for slightly better audio quality. One thing that we can all agree on is class A/B amps are usually larger and run much hotter and are less efficient. This is just a generalization, but it’s a common thread in most units.Įven the most passionate audio lovers won’t be able to discern a great difference between class D and class A/B amps. Class A/B amps produce better sound, but excellent class D amps are the more efficient models. As far as audio quality goes, the difference between class A/B and D amps is barely noticeable. Class A/B and D amps are the most common, and which one you choose will affect the quality of the amp performance. The topology of the amp is the amp class. In general, the higher the impedance, the lower the watts per channel. A 5-channel amp has either 2 ohms or 4 ohms impedance. Our team members remind our readers that the watts RMS rating will also differ depending on the impedance. Of course, there are amps out there that can reach far above that, with the JL Audio model on our team’s list as a great example of that. You don’t want to damage your car audio system and have to put up with subpar sound with an underpowered sound system.įor a 5-channel amp, you’re looking at anywhere between 600 to 1000 watts of RMS power on average. If you had to pick, you should overpower instead of underpowering your stereo system. Is a higher wattage output always better? Usually, yes. The max power is the total watts of RMS power from each channel combined. The RMS or root mean square is measured in watts. Unlike speakers and subs, an amplifier is advertised with RMS power. It’s definitely one of the more important ones, which is why it’s the first one on the list. The power rating is a huge consideration for a 5-channel amplifier.
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