What 6.5 speakers would you recommend for the rear? No amp, just a alpine head unit, with boston acoustics up front..Listen to rock music.
thanks

 

if u got the bostons up front mine as well put them in the back...... the rally series is a nice speaker or u could spring for the pro.......

what is your budget

 

I've heard the Boston's aren't that good for bass, but I could be mistken...My budget is probably $100-200 for a pair.

 

if you are not running amps and a subwoofer, i'd say get a speaker that's going to hit lower than the bostons....i have boston pros and i think it only goes down to 60 at the bottom...

 

Most 6.5" diameter drivers are not going to reproduce anything below 60Hz with any authority, especially if you are not using a steep crossover slope.

If you are not running a sub, and decide you don't want to, then I would "voice match" your front and rear speakers.

Have you thought of maybe an Infinity Basslink?..I must admit, I have not heard them, but they are supposedly good for some added low end impact, and have a small footprint...I believe that they are fairly cheap (~220 on ebay), and will make a more significant improvement over adding rear speakers.

Since you didn't list the rest of your system, I figured I would throw that out there as an option.