I don't know if many of you have heard of, or had experience with Cadence Audio, but every time I come across something of theirs, I'm thoroughly impressed every time. Today, I helped my 20 yr old put 6x9's in his car (2002 Cavalier). He found some on Amazon for ~$32 shipped, made by Cadence. Just a little quick history... I've had prior experience with Cadence on two other occasions. The first time was back around 2001-2002 I bought two home audio mini speakers and a sub on ubid.com. They're nothing fantastic, just a 4" woofer with a 1" tweeter, and the sub is an 8" down-fire design, ported on one side with a 50 watt amp on the other. When I got it hooked up to my Kenwood receiver I was very happy with the way everything sounded. A few months later I bought a center channel to match. Nice little 3.1 system for a good starter system. Well, I still have them. Even today, whenever anyone new hears the system (although I have a Yamaha receiver now), they're always taken back by how good it sounds from a company they've never heard of. From what I can remember, I bet I don't have $300 invested in them. Then, a few months ago, I ran across this deal. It's a 12" Cadence 4 ohm car audio sub, good for 1,000 watts RMS, in an enclosure, shipped for ~$200. It sounded great!! Good extension, very accurate and it handled the 800 watts I was giving it like it could easily take a lot more (after a bit of break-in time, of course). http://www.audiosavings.com/product...osure-Loaded-With-ZRS12-1000-4-Sub/ZB121.aspx Anyway, after we got the 6x9's hooked up in his car, we moved the fader to the rear and turned off the subs, just to hear the new speakers. With an Audiopipe 60 watts RMS x 4 channel amp, they sounded pretty good. He had the HP filter set @ ~60Hz on the pair he already had in the car, and I already noticed a huge increase in mid-bass compared to the others he had. Out of curiosity, I had him play Party Rock Anthem by LMFAO, and I switched off the HP filter and had them running full range. He turned it up, and while he and I were leaning our heads into the car through the door windows, his friend was still standing at the back of the car and had a "Big Gulp" size foam cup, about 1/2 full, sitting on the trunk. Would you believe, those 6x9's caused that trunk lid to vibrate enough to cause his drink to fall over and roll off the trunk lid!!! We were shocked!! I couldn't believe the excursion they have! Plus, they sound worlds better than what he had (Sony, IIRR). Nice and clear, clean sound. AAMOF, he changed the song to I'm Sexy and I Know It, and when it first started playing I heard a nasty sound and I thought he was straining the 6x9's, so I quickly reached in the car to turn it down. When I got my head through the window into the car, I noticed the nasty sound was gone. I brought my head back up and it was making his fuel door vibrate!! I thought his speakers were distorting. LOL He's thinking of getting the 6-1/2" components and replacing his door speakers with them (currently Sony coaxials) to compliment the bass from the subs, and bring some of the bass up front. Maybe tomorrow I'll have him shoot a quick video with his phone and post it on YouTube. These may be something that a lot of you may be interested in if you want good bass to compliment your sounds, but don't want to add a sub.