The RMS of your car speakers should not exceed the RMS per channel of the amplifier and vice versa. This may result in poor performance or distortion.
One of the most basic yet vital aspects of selecting the best car speakers involves proper sizing. Factory vents for speakers come in standard sizes such as 6×9, 6.5, or 5.25 inches. Measuring your existing speakers helps you avoid frustrating installation issues later on.
Some car speakers offer mounting brackets to fit different sizes, but the easiest installation is usually done with the factory size. Depth measurements are equally important; Many aftermarket speakers are deeper than factory speakers, so checking the available mounting depth prevents clearance issues with window mechanisms or door panels.
If you shop at a reputable car stereo store, technicians can help you choose the right size of speakers for your vehicle and take the guesswork out of your experience.
Car Speakers and Frequency Response – For subwoofers, lower frequency response numbers mean deeper bass, while higher numbers indicate clearer highs. Most car speakers support frequencies between 50 hertz (Hz) and 20 kilohertz (kHz). The real magic is in the uniformity with which they reproduce these frequencies. A smooth response throughout the range creates a more natural sound than speakers that overemphasize certain frequencies.
Pay attention to the resonant frequency of the speaker. It indicates the lowest frequency that it can reproduce efficiently. A lower resonant frequency usually translates to better bass response.