"Where's the 00 awg battery cable for speakers guy when you need him?"
He is on his way, bringing a crane.
I also use two different sets (Siltec Prince & Transparent XL) of (digital + Intercon + speaker) cables for different music or different recording sound quality. You can hear the big differentce from different cable which means all your gears (transport, dac, preamp, poweramp, speaker) are all top high products.. The lower level gears used, the less difference can be heard. It's a kind of enjoyment to hear the diffenence that most people unable to enjoy it. Isn't it!
OP, your question was answered in the very first response:
"Dynamic range is more likely a function of the recording than the source component. I’m not aware of any commercial recording with DR in excess of 100dB and most commercial recordings don’t even contain a 70dB DR."
And speaker cables, regardless of the price, interact electrically differently with the amplifier and the speakers they are connecting thus they can sound different. It just seems like you did not like the answer you were given and keep dragging this thread into the mud.