It’s about time I upgraded my car’s speakers. I have a very nice head unit (CD player), but the speakers in my current car are the worst out of every car I have ever owned (except for my 1978 Mini Mayfair, which didn’t have any). They distort with bass and the front doors vibrate like crazy. I bought two pairs of Polk DB6501 component speakers on eBay, and they finally came after 3 weeks of anxious waiting. Component speakers consist of separate woofer and tweeter speakers for each channel, and a crossover is used to separate out the signals for each. Here’s one of the woofers:
I mounted two woofers on the rear shelf (parcel shelf, as we say in England), without tweeters. Putting tweeters there would only serve to pull the soundstage further behind the listener, and this is a bad thing, according everything I have read. Here’s one of the crossovers dangling loosely in the boot. Note to self: JPEG compression doesn’t work too well with images that consist mainly of noise-like areas.
I bought some Dynamat squares for the front door speakers in order to reduce any rattling. Dynamat is a strange product that consists of black sludge that feels a bit like Silly Putty sandwiched between a piece of wax paper and foil. You pull the wax paper off and stick it on the surface you are going to mount the speaker on. You then screw the speaker into place with the Dynamat sandwiched between them. It’s stupidly expensive – $25 for two 10×10 inch squares – and I bet it costs them pennies to manufacture that amount. It really worked though! Literally all the unwanted vibration in the front doors is gone! Here is a speaker mounted to the rear deck:
When all six speakers (counting tweeters) were installed, the results were impressive! I get more sound at the same amplification levels due to the higher sensitivity and the bass distortion is gone! On some songs it sounds like I have a subwoofer in the boot, which is what I was aiming for, because I don’t really like them. Bad news though – thanks to all the fiddling with settings I did, one of the knobs snapped off the stereo and I can’t find a replacement anywhere. 🙁