I need to know if i am going to be able to put this entire setup into my 87 SC without an amp. Take a look and lemme know. Ill be going to pick these up tomorrow. Ive heard that i wont need an amp, but i dont wanna ask the guys at circuit city because no matter what, theyll tell me to get one because of the money.
lemme know plz.

Pioneer Deck
Buy the Pioneer In-Dash Player (DEHP5800MP) and other Car In-Dash Players & Changers at circuitcity.com

Pioneer 4X6 Spkrs
Buy the Pioneer 4" x 6" 2-Way Speakers (TSG4641R) and other Car Speakers at circuitcity.com

Pioneer 6X9 Spkrs
Buy the Pioneer 6" x 9" 3-Way Speakers (TS-A6971R) and other Car Speakers at circuitcity.com

No you wont need an amp. The radio can push those 4 speakers.

You would get more bump out of a pair of 6x9's that were rated closer to 100watts. At normal listening level you will be sending about 25 watts to a 300 watt speaker. You will get descent volume levels out of the speaker but not near the sound quality you would by running them off of an amp.

As a general rule, the closer you match peak power of the head unit or amp, to the peak power of the speaker, the more efficient the system will be and the better it will sound.

The stuff you picked out is nice, but in my opinion I would run the rear speakers off of a 2 channel 200 watt amplifier. Even a 2 channel 100 watt amp will make an amazing difference over running them barefoot. (meaning just off of the head unit with no amp)

I think these would make a better match to the headunit you selected without using an amp.

hey thanks. Its just that right now im kinda on a budget, but when i get more money i plan on gettin a custom woofer box and amp. I was just curious to know if i could use all 4 without an amp for the time being

It will push them, but you may not like the quality.

ie: try pushing a camaro with a motorcycle engine :\

An amp and crossover will make them sound better, but yeah theyll work.