<font color='#0000FF'>I've read all the recommendations regarding 4/8ohms setup on the receiver/amp. It should always be set to 8ohms with proper ventilation for optimum performance regardless if the speakers are rated 4 or 8 ohms.
My question, is there an advantage of a speaker rated 4 ohms over one that's rated 8 ohms? If 8 ohms are easier to drive, do 4 ohms perform better if you have enough driving power?
My 2nd concern: my speakers are 4 ohms (referring to the above Jamos), the frequency response is 80-20000Hz, I always thought that the higher I set the cutoff frequency, the more authority would the speakers have for the midrange, and it's good preserving the speakers on the long run, but since even low frequencies as low as 80 Hz are a bit directional, what is the ideal setup:
1. Speaker low cutoff at 80 Hz (the limit), Subs high Cutoff at 80Hz?
2. Speaker low cutoff 100 Hz, Subs High cut off 100 Hz
Or is it ok to overlap:
3. Speaker low cutoff 90 Hz, Subs High cut off 100 Hz
I know it's impossible to suggest the ideal setup, since the most important thing is the listening experience and some lack of information, but some guidelines would be helpful and much appreciated.</font>