
1. Some car power amplifiers are specially designed to promote woofers, such as: Kenwood KAC-PS401M (14.4V, 4 ohms), maximum

Car audio equipment, like home audio, also uses a power amplifier. People who are new to car audio think it is inconceivable

The first type of natural solid wood, its cost is relatively high, and its quality is much heavier than the same volume of sp

very low frequencyI call this octave from 20Hz-40Hz very low frequency. There are very few musical instruments in this freque