passive crossovers with non-4ohm speakers

A couple of points here.  First, I disagree completely with the above statement of "it will produce a better sound" at 2 ohms VS 8 ohms.  In general, this is wrong.  Amplifiers operate with more noise, more distortion, worse damping, less headroom and more heat at lower resistance.  In general, a 2-ohm load will sound 10 times worse than an 8 ohm load.  Run higher impedence loads for better SQ.

Second, you cannot simply connect multiple speakers to a passive crossover network.  If you change the impefdence load the crossover point changes.  Dropping from 4 ohms to 2 ohms will double the crossover point (raise it from, say, 500 Hz to 1000 Hz) and conversely doubling the impedence to 8 ohms will halve the crossover point (dropping it from 500 Hz to 250 Hz.)  If you are using passive crossovers (such as those that come with component sets) then you must use the same impedence speakers the crossover is designed for.  Or, if you are designing a crossover, you must do so for the speaker impedence you intend to use.

thanks for the above advice.....thought thats what it was...it will be running off a 2hohm stable amp...

will look into three way passive