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A 5-inch car audio speaker with a 4Ω impedance and an RMS power rating of 25W is a woofer designed to reproduce low-frequency sounds in a car audio system. The speaker has a diameter of 5 inches, which refers to the size of the cone or diaphragm that produces sound. This size is relatively compact and is commonly used in car audio systems.
The 4Ω impedance indicates the electrical resistance the speaker presents to the amplifier. A lower impedance allows more power to flow from the amplifier to the speaker, making it suitable for low-power car audio systems or systems that require efficient power transfer.
Woofer speakers are typically responsible for reproducing the lower frequencies, such as bass and mid-bass tones, in a car audio system. They are designed to move a larger volume of air to produce deeper and more impactful bass notes.
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