Sealed Back Line Array Drivers

any body have an  opinion on these drivers: http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Product_ID=167945&gemail=1

these really appealed to me because they were sealed, and an 150rms power handling at 8 ohms

how would these sound inside a car, along the back shelf? practical?

Eminance has been around FOREVER, building hardcore stuff.......these look cool, one hell of a 6.5.

Good for some "rear fill"

I agree.  The speaker you link to is a decent mid-range driver when used as intended: in a line-array.  Not something I'd recomend putting into a car, and especially not "along the back shelf." 

What is your intention and maybe we can recomend something.

well my ultimate intension is to find a close to full range driver that i can use in the car, not components, not a coaxial, that can take alot of punishment

i want to replace my kove coaxials essentially

imaging is not a main concern for me, i want something that is efficient at  8 ohms

what do u have in mind?

materials mean nothing to me. some of the most efficient drivers use paper cones and cloth surrounds,  i have a few paper cone drivers older than me that'll rip the skin off your face

I know you're familiar with all I'm about to say but I'll put it out here just to make a clear point.   A speaker is rated at a certain impedance for specific applications, such as at 4 ohm for car audio and 8 ohm home audio, typical.  You of course can use 8 ohm drivers in the car and doing so will allow the amplifier to produce power at (normally) better specs.  The downside is that you are using only a portion of the available power, so a car amp that is rated 2 X 60 watts into 4 ohms will produce 2 X 30 watts into 8 ohms.  Efficiency doesn't factor in.  In order to use the car's power resources smarter, especially for back shelf speakers, using drivers rated at 4 ohms will allow your amp to produce power at its rated specs.  I think you would have to have very specific SQ intentions with certain up-front drivers to want to use the amp at an 8 ohm load.

The sound that comes from the rear should be very close to the same sound that comes from the front speakers so that the combination will blend in the car and create a "spot" of focus somewhere around the front seat occupants' heads.  A full-range driver, in order to produce something close to full range music, has to have some sort of way to produce both midbass and high freqs.  They usually have a whizzer cone in the center that will successfully reproduce the high freqs that the main cone will not.  There is no crossover involved with that concept, it's just because of the limitations inherent in cone sizes.  OEM speakers in cars, and tabletop radios, have used these whizzer cone full-range speakers since before I was born.

I don't think that's what you really want.  The sound will differ from the sound from your fronts.  What do you have in the front, anyway?

BTW, I was searching for a pic of a line-array and couldn't find a good example yet.  But picture a tall, narrow floor-standing speaker system sitting beside a big screen TV with about 10 or more speakers all the same size lined up and down it, packed real close together.

i have 8 ohm drivers up front

btw i know 8 ohm speakers on an amp will run at half the power, thats not really my concern