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View Full Version : rear fill 5x7 question



Thedeadly1
01-21-2009, 05:53 PM
Hey, I still didn't finish my system install, but i do want rear fill just because ive always liked the way adding rear fill sounds, plus for rear passengers. But i dont want to amp the rears, I have spots for 5x7 speakers, What would sound good and not distort with just deck power? Because i dont want to get speakers in the rear and then they get distorted at high volumes and totally destroy my sound. I dont even need co-ax's, Just mid bass would be fine back there. What should i go with?

mcsoul
01-21-2009, 06:04 PM
No you need a decent coax to not ruin your sound, having only a mid in back would mess things up IMO. Also you can use your fader at high volumes. How do those AQ's sound???

I'd spend around $100 and get a Boston, Rainbow, ID or something along those lines. The higher the sensitivity the better since your running deck power.

Thedeadly1
01-21-2009, 06:53 PM
I didn't even finish installing them, okay so what kind of sensitivity would you reccomend? And rms what am i looking for like 40?

mcsoul
01-21-2009, 06:57 PM
I didn't even finish installing them, okay so what kind of sensitivity would you reccomend? And rms what am i looking for like 40?

Above 89db at 1w/1m or 91-92db at 2.83v 1w/1m. 40w power handling is fine.

Something like these look fine

http://www.sonicelectronix.com/item_5021_Boston+Acoustics+S85.html

jshak07
01-21-2009, 07:02 PM
u got pm!

Thedeadly1
01-21-2009, 07:16 PM
Okay thank you very much everyone, one question, Why wouldn't i just want a midwoofer back there? lets say i never had passangers and just wanted rear fill, then would i want a midwoofer?

mcsoul
01-21-2009, 07:21 PM
Something like this cheap full range driver might work for $40, but I'd just run a coax for rear fill.

http://www.madisound.com/catalog/product_info.php?cPath=45_241_309&products_id=8470

Thedeadly1
01-21-2009, 07:24 PM
Okay thank you, im probably going to go with those bostons i just have to get a couple more bucks together. I appreciate your help everyone

I Like Waffle
01-21-2009, 07:32 PM
I would reccomend some infinity reference rears, they make some VERY nice sounding 5x7 coaxs which would probably run you around 50-60 bucks. Theyre also 2 ohm, which means theyll get louder off just deck power, assuming youre amping the comps you have up front. Also have 93db sensitivity :)

Thedeadly1
01-21-2009, 07:39 PM
I would reccomend some infinity reference rears, they make some VERY nice sounding 5x7 coaxs which would probably run you around 50-60 bucks. Theyre also 2 ohm, which means theyll get louder off just deck power, assuming youre amping the comps you have up front. Also have 93db sensitivity :)

Anyone have any input they would like to add to that? Doesn't 2 ohm sound dirtier than 4 ohms?

jshak07
01-21-2009, 07:41 PM
did you get my pm?

Thedeadly1
01-21-2009, 07:48 PM
I got one and i sent one back, no response from that

I Like Waffle
01-21-2009, 07:51 PM
Anyone have any input they would like to add to that? Doesn't 2 ohm sound dirtier than 4 ohms?

Ive never heard that theory? My infinity rears sound just as good as my comps up front. They actually have alot more midrange to them which is a good thing too. They also have an adjustable +0/+3db silk dome tweeter which sounds very clear and not harsh at all. They should be at your local best buy, thats where i got mine. Go listen to em, dont pay retail though ;)

mcsoul
01-21-2009, 10:00 PM
I would not run my deck at 2 ohms.

wishbone
01-21-2009, 11:08 PM
I have the infinity reference speakers. The fronts are amped at 50 watts each which sounds incredibly clean the rears are being played straight form the speaker connections. They are 2.65 ohms, which I didn't pay attention to, but they never distort. After breaking them in they lose a little bit of punch. I bought one pair from crutchfield and got robbed, the other pair I bought from amazon **** near half price.

WB

eharri3
01-22-2009, 12:30 PM
You are high passing them right? I only ask because when I switched to powering rears off the hu it didn't occur to me that I would loose the amp's crossover for those speakers. Right now I'm stuck crossing fronts and rears at 80 through my hu even though my Hertz HSKs could probably handle about 10 HZ lower until I figurer out the easiest way to cross the rears over separately. Otherwise the rears bottum out and distort while the rest of the system still has WAAAY more to give.

But if you're running those speakers full range you may have this problem to an extent regardless of what you do.

mbaoo
01-22-2009, 02:55 PM
These are what I run for real fill.

http://www.sonicelectronix.com/item_8190_Infinity+Reference+6822cf.html

They sound pretty good.