Power Distribution... Because both speakers have the same resistance, the amplifier splits the incoming power equally between them (50% to each speaker) regardless of series or parallel wiring...
And that price does not include the nut 😳
Nut Price: The matching Shark Modular Nut or Fixed Nut "must be bought separately", priced around $134 to $209 depending on the variant (with the modular version typically running about $174).