OK guys my rear speakers are 4 way sonys powered by a sony 200w amp.

Those speakers produce wonderful highs and really complement my system but i still have a question.

I still have my stock tweets and door speakers, and i want to replace them, maybe not the tweet but definitly the speakers.

Heres the question, should i go for mids, highs or just throw some cheap 50 dollar speakers in there just to get rid of the stock speakers. I would like to put speakers in my other 2 doors also, that would give me a whooping 9 speaker system.

Would 1 set of Mids produce enough good mid bass so the frequencies that you dont want your subs or highs to do (around 400-800hz i believe) stand out?

 

Typical SQ Answer:
You should have the better speakers with more power in the front. All newer speakers have twweters so you should not reuse the stock tweeters. If anything replace the front speakers with a component set that compliments the rears in series of speaker. Component speakers refers to speakers that have a seperate mid and tweeter. Midbass is about 80 hz-200 hz, mids play to 3khz-4khz. Seperate mids are generaly avioded unless your running realy high power and are a very good installer with a damn good crossover and EQ. Rear speakers are for fill only and shouldn't even be amplified unless neccisary becuase the radio doesn't have power. So you shouldn't add more.

Typical Cheap or volume only concern answer:
If you have a sedan then you'll have to run new wires into the rear doors to get power to rear speakers since the sedans don't have speaker wires run into the doors. Adding another set of rears will increase volume. Replace the fronts and if you use an amp to power them aswell you will be able to reuse the stock tweeter if it is around 4 ohms. If the tweeter has a high impedance you can just parrallel them on to the door speakers. A decent pair of 6.5"s and 6x9"s will give good midbass.

My Answer:
SONY, YOU SHOULD BE STRANGLED!!
I REFUSE TO HELP UNTIL YOU DOWSE ALL YOUR SONY EQUIPMENT WITH GASOLINE AND HAVE A BONFIRE!!!!!!!!!!