Not, as many have said, you can hear the difference but there is the ability to measure the resistance difference in cables, often of the same make, type and length. Whether that translates to 'hearing' difference is debatable as the amps performance can have a more substantial impact. Enjoy the music and stop fussing about the gear.
Mono amps and different length speaker cables
Wondering if there is any noticeable negative effect from using say a 3 meter pair of speaker cables to one set of binding posts on the amp and speaker and using a 2 meter pair of the same brand and model of cable to different binding posts on the amp and speaker. I am using solid state mono amps.