The TC-4W is a cover for the connectors of Electro-Voice's EVID 4.2 loudspeaker.
Electro-Voice's TC-6B is a cover cap to protect the connectors of EVID 6.2 speakers from water.
Electro-Voice's WC-PB is a cover for the connectors of the P6.2 pendant speaker from Electro-Voice's EVID series.
Electro-Voice's WC-PW is a cover for the connectors of the P6.2 pendant speaker from Electro-Voice's EVID series.
This knob is a spare part for the Electro=Voice ELX200-10P loudspeaker. The knob in question is the Master Volume knob.
The DAP Green Cell AGM 12 V 14 Ah battery is specially designed for the DAP NRG-12 Mobile 12" battery speaker. This battery offers long operating times and can operate in any orientation without leakage.