loud speaker 6 ohm resistance

[petros]

help any body Knows how ican make a 6 ohm resistance speaker
if i can find only 4 ohm nominal resistance drivers

If i connect a 4 ohm woofer (real dc resistance 3.8) and a 4 ohm
tweeter (real dc resistance 2.8 ohm) with a two way series crossover the resultimg resistance will be 6.6 ohm ?

If i have a four ohm two way speaker may i connect a 2 ohm
resistor in series before the crossover in order to make the speaker 6 ohm resistance and what effect will that have on
the quality of the sound

i ask all the above because i have an amplifier Yamaha rx-v 640
which requires 6 ohm speakers for the rear and center speakers

thanks

[Therac]

I don't think that you are gonna have any problems connecting a 4 ohm speaker to your amplifier... Especially when it's only the rear and centre speakers...