the number of speaker cones
2 way usually has a woofer and tweeter. The midrange has to be handled by the woofer so they won't sound as good as the 3 way.
3 way usually has woofer, midrange and tweeter so you get more segrated sound with each speaker reproducing what it knows how to.
4 way - not sure, probably just a more spaced out range.
2 way (and 3 way) work great in a system using a subwoofer where you have all low end (100Hz or 80Hz crossover) going to a subwoofer. then the woofer section of the 2 way works as a great midrange. Best thing you can ever do for a car stereo system - put in a subwoofer on its own amp and get all the bottom end equalized out of the other amp, so your main speakers dont' try to produce any bottem end at all. System will sound WAY better, even if you aren't turning up the sub and vibrating the car next to you, it just makes your entire system tighten up and sound better
This is a mostly a matter of personal opinion but I find the 2 way speakers to be less "harsh" with less screeching treble. Brand name can make a big difference as well, I personally prefer JVC 2way speakers as they have excellent vocal reproduction and a very reasonable price.
Do pioneer 3way 6x9 speakers fit in the rear doors of a 2002 accord coupe?
Purchase a set of Sony, or Panasonic 3way speakers in the correct size and they will sound great. There are other more expensive speakers that also sound great, it just depends on how much you want to spend.
3Way - 2008 was released on: USA: 4 February 2008 (Los Angeles, California)
3Way - 2008 LadyCops Brotherly Love was released on: USA: 6 July 2009
3Way - 2008 Psychodrama 1-7 was released on: USA: 7 April 2008
3Way - 2008 Siobhan Sizzles 1-8 was released on: USA: 13 April 2008
You insulate the 3way valve for the FCU to control temperatures. If the valve is left uninsulated, the contents will either lose or gain temperature depending out external conditions.
3Way - 2008 Rhonda Rapid Delivery 1-9 was released on: USA: 20 April 2008
3Way - 2008 Fatal Distraction Part 1 1-4 was released on: USA: 17 March 2008
3Way - 2008 Fatal Distraction Part 2 1-5 was released on: USA: 23 March 2008
There MUST be some sort of amp powering the sub. An amp gives you power much like if you plug a light into a wall outlet. Hopefully there is a second 4-channel amp powering the speakers... Also, are you listing rms or max power for the 4" and 6x9" speakers? What sort of power is being run to the speakers also? Your question needs to be more specific to be able to answer it properly.