![]() ![]() Find the amp’s power in RMS watts at 4 ohms, 2 ohms, and 1 ohm.Ĭhoose the RMS power rating you’d like to achieve. ![]() The sub’s RMS watts rating must match the amp’s power range for optimal sound. Finding the Right Sub for Your Amp Find the Amp’s Power Range A mono-channel amp is often ideal for powering subwoofers since it can output a lot of power with low impedance. 4 DVC 4-ohms = ohms or 8 ohms of impedanceĬhoose an amp that can put out power in the total RMS wattage range from step one, and at an impedance load the subs form, based on their wiring, from step two.Ĭar stereo amps range from one to six channels.4 DVC 2-ohms = 1 ohm or 4 ohms of impedance.4 SVC 4-ohms = 1 ohm or 4 ohms of impedance.4 SVC 2-ohms = 2 ohms or 8 ohms of impedance.3 DVC 4-ohms = 2.7 ohms or 6 ohms of impedance.3 DVC 2-ohms = 1.3 ohms or 3 ohms of impedance.Find the Total Impedanceįind the total impedance created by the subs you’ve wired together, depending on whether they are single voice coil (SVC) subs, one pair of terminals, or dual voice coil (DVC) subs, two pairs of terminals. The amp you choose will have to be capable of powering 75% to 150% of the total RMS rating for the entire subwoofer system. Find the Sub’s RMS Ratingįor multiple subs, multiply the number of subs by their RMS ratings for a total RMS rating. While different types of subs must all have their own separate amps. Note that if you plan to wire together multiple subs in your car audio system, they must all be the same impedance and coil type to ensure they are all powered evenly. If you already have a sub, here are the steps to finding the right amp. In other words, the amp’s capabilities need to match the subwoofer’s specifications to work properly together.įor the best sound quality, make sure the RMS watts of the sub and amp match. To ensure your car stereo system has excellent bass, you need to find an amp that matches your sub. Peak power handling is the maximum amount of power a sub can handle without getting damaged.Īmps have an RMS watt range rating, referring to the minimum and maximum power ranges produced by the amp. And the amount of power that a subwoofer can handle is represented in peak watts for peak power handling and Root Mean Square (RMS) watts for continuous power handling.Ī sub’s RMS rating is the one to pay attention to since it refers to the amount of power the sub is capable of handling continuously and on a regular basis. But it becomes more complicated as the number of subs installed increases. And matching impedance with amps is fairly simple when only using one or two subs. Most subs have 2-ohms or 4-ohms impedance ratings. For example, an amp might run at 550 watts with subs wired at 4 ohms, and 1100 watts with subs wired at 2 ohms. The impedance rating of a subwoofer represents the load an amplifier will sense on its output. And the impedance of a subwoofer affects the load of an amplifier. Impedance is the electrical resistance of a speaker-in this case, subwoofer-that restricts the flow of electricity. We’ll also cover some common terminology and how it all fits together. Let’s go over some of the basics of subwoofer and amplifier use, pairing, and more. When you’re ready for your new car stereo installation, consider these tips for finding the right subwoofer and amplifier for optimal sound. Matching these car stereo components will make a significant difference in the quality of sound and ensure that your car stereo system is working properly. Subwoofers add fullness to music, giving off rich, deep notes that any music lover will appreciate.īut in order for a subwoofer to sound great, it needs to be paired with the right amplifier. Be aware of the fact that if your amplifier is a stereo amplifier (amplifying both left and right), bridging it would cause it to become a mono amplifier (amplifying from one either the left or right).How to Match Your Car Subwoofer and Amplifier Tips for Finding the Right Car Components for Your Car Stereo SystemĪ subwoofer is an excellent addition to improve the sound in your aftermarket car stereo system.It may already be bridged internally, and you could cause damage to your amplifier. If your amplifier does not claim to be able to bridge, don't try to bridge it. Most amplifiers have a small diagram near the channels indicating the terminals you would use to bridge it.Be sure to check your manual (or the manufacturer’s website) to see if once connected to a speaker, whether or not your amplifier can function at half the ohms it currently uses. Bridging an amplifier cuts the resistance load (measured in ohms) in half, which can cause it to overheat.If the amplifier is used, or lacks documentation, go online and check for the specifications on the manufacturer's website. This should be indicated on the documentation pamphlets that came with the amplifier, or the amplifier itself. ![]()
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