RetroSound Fell Apart
I bought these RetroSound speakers to replace the so-so Boston Acoustic speakers in my front dash. The BA speakers used a small polypropylene cone as "tweeters" (really??), though with larger magnets and power handling than the basic stereo option. So naturally, these 2-way RetroSound speakers sounded better, crisper highs and with Bass Blocker filter (think I had 300hz or 500hz) warm, undistorted mids (don't want singers sounding like pitchy robot-aliens). But after nearly a year, one of the magnets came off a speaker. Since it wasn't wired to anything else, I was able to reattach the magnet to the speaker after cleaning up what appeared to be only a few craft glue-gun drops of glue used to assemble it at the factory. Since then that particular speaker distorts sound above low-medium volumes, and especially is distorted from that particular speaker during voice-command prompts and Bluetooth phone calls, even after I swapped left & right speakers to test connections and isolate that it's a speaker unit issue.
Pros: Good crisp highs and smooth mids when used with Bass Blockers to filter out the low bass signals from your upgraded stereo systems.
Cons: RetroSound speaker construction is poor: magnets were barely held on to speaker housing with a few drops of cheap glue. Just after a year in my sedan, I had to reattach the magnet with better glue and electrical tape. But since the magnet first fell off, which caused rattling and near complete cut-out of sound from that speaker, sound gets distorted above low volumes, it physically rattles, and sound is distorted half the time, leading me to believe the rest of the speaker is coming apart.