These are a massive PITA to make, but entirely worth it for efficient widebanders. They will also work very well with efficient horn systems, but should not be used for inefficient speakers. They just don't have that much area.

The woofers require a low resistance connection to the amplifier.

Large tinned copper in cotton cables. Not as much of a PITA to make, yet a very good match for the silver and they work well with the woofers.