Midrange protective grille for 108:dB or 110:dB, pair ...................... AU$170
Silver plated printed circuitboards and wiring for [act:eve]................ AU$430
[iso:form] metal protector disks, set of four .......................................AU$32
[iso:form] surgical grade stainless steel spikes, set of four..................AU$96
Shipping charges and freight insurance is extra.