I've had my RT3s:
forever and love them. My ex roommate blew the woofers one day, and Polk stopped making the replacement woofers.
So I found these MW5530:
and bought them without checking the impedance, which is 4 ohm. The tweeters are 8 ohm. I've already installed them, and the sound is good, but I find I have to do extreme EQ settings on my receiver.
Is there anything I can do to match the impedance which will fit in the cabinet? Wire in an l-pad or resistor?
My front L-R setup is a passive crossover routing 120 Hz below to a 10" sub and above to Polk RT3s.
Thank you for your advice