rear fill

I've read posts where some audiophles prefer no rear speakers. I prefer the sound produced by haveing rear fill. I'm currently going to upgrade my systems rear speakers. The factory set up is 6.5 and tweeter on each side, which are located directly under the rear seat armrest firing straight towards the passenger. I will be replacing the factory speakers with MB Quarts 6.5 components, for the mid bass for a subwoofer I'll be using a bazooka tube.

Ok, I am wondering what would be better, use the factory locations or mounting them on the rear deck in an enclosure.

BTW, the front speakers are 5.25 MB Quarts components in a speaker pod in the front doors.

Any help woud be appreciated.

Mounting upon the rear deck is an invitation to have your car broken into.  It just is, even if the speakers are walmart road warriors.  Use the factory locations.

BTW, you should realize that the 6.5's should be in the front instead of 5.25's.  The front soundstage should get the lion's share of bass / midbass...but do with what you have to do with.

thank you for your reply. I've read several dozen of reponse you have given and you are very knowledgeable and i respect your advice.

Yes, i have been on the fence whether to put the 6.5" in the front of the back. from what i read the 6.5" should go in the front.  But, I'm wondering would the 5.25 sound better in a small or limited enclosure then the 6.5?

If i may pick your brain? My components consist of MB Quart components 6.5 and 5.25, a Bazooka 8" Subwoofer, which i choose over the 10 & 12" due to lack of room. Also, my listening tastes is more towards a punchy bass, then a boomy bass, more Rock (I'm a big Who fan, love hearing Kieth Moon banging on those drums) then disco. I also purchased a Hifonics HFEQ, which is a 4 band eq, 9 VOLT Line driver with front and rear active crossovers.

Amplifiers are Alpine 40watts x 4 and 200watt mono (bridged)

I was going to cross the front and rear at 80Hz and the Subwoofer at 80Hz too. Would this be a good place to start and then tweak it from there?

Oh, the Bazooka is going to be facing forward, in the trunk with just the front sticking out thru where the middle arm rest is.

1.  When crossing with 5's, start at 100 Hz.  With 6.5's, 80 Hz is a good place.  Work by crossing over the front soundstage with the sub...the rear fills are added in afterwards.

2.  You shouldn't have any real use for the line driver.  Set your system up without relying on it.

3.  With your tastes, the range of freqs centered at 80 Hz is critical.  This means that you want the front soundstage to accurately and loudly play well down to near the 40's Hz. so that the sound is strong at the crossover region of 80 Hz.  Have plenty of power available for the fronts, use 6.5's, and spend some time tweaking the crossover.  Hopefully, the bazooka will do its job adequately.

4.  Allow the speakers as much room as you can afford them...which indicates door panel use.  Use sound damping on all sheet metal panels of the front doors (the rears are attenuated so not as important in this regard).  This will emphasize the critical 80 Hz crossover region and allow Keith's drums to come to life.  The drawback may be in the light duty amplifier, but Alpine might come across with this if the setup is tight.

thxs, I value your advice and will put the 6.5" in the front with the 5.25 in the back.

I get the impression your not a big fan of  Bazooka Subs?

 i went with Bazooka to make life easy, i figured the tube would be tuned, instead of purchasing a sub and then purchasing an enclosure which wasnt tuned specifically for that speaker. as for the EQ, all of the reviews were positive and i liked the aux input for an Ipod. thanks for your input on line voltage, i was going to keep the level low.  I'm not a mamaluke, kapish LOL