DJ, welcome. You may be unnecessarily concerned about the internal wiring(and external too, for that matter), which, within reason, doesn't have a significant effect. The 16ga or 18ga regular copper wire which is typically used is as "high grade" as is necessary for the short lengths involved. This discussion of speaker wire by a well-respected veteran audio professional is worth studying. Note that all speakers have over 100 feet of thin copper wire in their drivers.

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Enjoy the music, not the equipment.