4 ohms , 6 ohms, or 8 ohms???


My Canton 3.2 DL reference speakers sound wonderful.
They are rated up to 600W and the cabinet states  IMPEDANCE 4 TO 8 OHMS
I am considering a new amplifier which actually has one set the resistance at 4 or 6 or 8 ohms. 
I do not understand how to make that decision:
Should I run the speaker cables from new amp to the Cantons as 4 ohms, 6 ohms , or 8 ohms?
I would really appreciate some feedback on this...is there a simple, obvious answer?
wahoo101488
Looking at the measurements, here:

http://www.stereophile.com/content/canton-reference-32-dc-loudspeaker-measurements#BSJ98rl0dgKIixXi....

This is a very difficult to drive speaker. They have an impedance below 4 ohms for most of the bass up until around 700 Hz.

I would be VERY careful in buying any tube amp for this speaker pair. If you can audition I’d instead suggest you try a good solid state amp with good current capabilities.

By all means, LISTEN, but I worry based on this you may end up with pretty uninspiring bass with anything but a stiff SS amp.



Best,


Erik