The first step of upgrading the stereo system in a vehicle with a factory radio is to analyze the audio signal. To do this, we use multiple tools such as Oscilloscopes, Real-Time Analyzers, Digital Multi-Meters, Phase Checkers and more. These tools provide us a visual of what the audio system is doing and allows us to gather the proper data to feed to the new audio system. In this case, we needed a left + right audio signal that plays at a minimum 20hz to 100hz to feed the subwoofer signal.
In this Cadillac XT5, the audio signal from the factory stereo was not exactly what we wanted. So we utilized the JL Audio Fix82 which combines multiple signals from multiple channels and processes them into the perfect signal that we need. Now that we have the audio signal that we need, we started on the fabrication of the subwoofer enclosure. The customer wanted an enclosure that he could show off to people and his favorite color was red. So edge-lit plexiglass along with the words “El Tipo” was embossed on the enclosure. The end result was exactly what the customer expected and the performance of the audio system…….well, let’s talk about DDAudio a little bit.