Re: Door Speaker Upgrade
Glad you enjoyed it.
Sadly the state of the aftermarket industry is not healthy and while there are efforts underway to leverage the finest talent to change that, most of the actions are just a rebranding of past events but in more upscale locations.
In reality companies are taking a note out of the BOSE playbook leveraging DSP technology to correct for speaker/listening environment imperfections to deliver great sounding systems. Now they are not using $.15 paper drivers to do it which is still better, and even the finest speakers need the DSP to overcome imperfections created by the room/car they are placed in. With really good speakers those are more slight tweaks vs. large changes.
Our cars were part of a huge leverage in driver technology with CMMD which was a industry changing patented development that can be seen in several Harman applications under the identifiers of CMMD, CMMD Lite, and other names based on brand (CMMD is the Infinity id). Ultra stiff low resonance drivers that pushed the resonance/driver distortion outside the band of operation (beyond the useful operating range of the driver). This meant less needed to be done with dsp and crossover networks, but it also has a higher cost of production. The first appearance was in Infinity's Prelude MTS speakers ($12,000 a pair), and the Crossfire and Pacifica were the only executions to use it. All other applications from BMW and a host of other luxury brand autos used the "lite" version.