This is a rare occurrence but it does happen. If the speakers aren’t operating in their optimal range, you may hear a snapping sound as the voice coil former smashes into the back plate.
In some systems, the limiting factor may be the quality or configuration of the speakers used in the vehicle. When you run out of power, the signal produced by the amp distorts heavily, and the sound becomes garbled and unpleasant. In most cases, the maximum output capability of your car stereo is determined by the power available from the amplifiers to drive the speakers. What Determines How Loudly a Car Stereo Can Play? Are you confused? Fear not! As always, we’ll explain.
This conscious and deliberate design decision ensures that any signal source can be played at the maximum volume level as determined by the system’s amplifiers. The short and sweet of why this happens is something called gain overlap. Whether the sound system in your car or truck is bone stock or upgraded with premium amplifiers, speakers and subwoofers, the system’s maximum volume may not directly coincide with turning the knob up all the way.