Which 6x9 car speakers make the most bass?

Hey everyone, im looking for some speaker suggestions. My problem is that i used to be into car audio back in the 90s but since i havent kept up with it much and a lot has changed.

Im wondering which brands still make good quality speakers. Back in the day, it used to be Rockford Fosgate, JL, Pioneer, etc. Now i know JL is still pretty good but the quality of Fosgate and Pioneer have gone way down. Right now, Im just looking for a good set of 6x9" and 6.5" speakers that can put out a decent amount of clean bass. Im not looking to spend a fortune, but i dont want to spend too little and get speakers that disappoint either. Im looking for all the interior speakers to be from the same manufacturer.

So which manufacturers make good 6x9s with good bass? I have read online that these brands are generally really good or produce good bass: JBL, SoundStream, Focal, Kicker.

I went to best buy because their website said they sold JBL and i wanted to see if the bass was as good as i have heard. When i go there they didnt have any JBL speakers for sale. After listening to a few of the other brands: Sony, Kenwood, Polk. Infinity, Kicker, Alpine, the Infinity seem the best. By far the loudest and clearest. Model 9632CF for the 6x9 and model 6032CF for the 6.5 inch that matched them sounded good also. I was going to go ahead and buy them but the 6x9s were sold out so i held off on it.

In my car, the previous owner installed some infinity 6x9s model 9603i. They have been in my car the whole time i have owned it (10+ years) and yet they never seemed all that impressive - bass wise. After i went to best buy i took a look at them and realized that the infinity 6x9 that i have in my car are nearly the same as the ones i was going to buy, they are just 10 years older and a different model number. If you look at the specs of the ones i have in my car and the ones i liked at best buy, they are nearly identical it seems.

So how did the ones at best buy sound so much better? Does it come down to the fact that the ones at best buy were running off an amp and im running mine off the factory deck? Just wondering if the speaker technology has changed that much in the ten years since i got this car, or if i just really need to give these speakers some power to make them sing.

Either way, i would still like to know which brands you have personally heard making good bass. Im just talking about interior speakers here, not subwoofers.

Any input is appreciated, thanks.