Good quality 012 KLS brand 4 pin speaker wire connectors buy it!
$0.05-$0.10
Annular 4pin sound professional speaker ohm XLR connector// buy it!
$0.25-$0.35
Cleqee-2 P7021 Silver Plated Banana Connector Test Probe Converter 4mm Male to 2mm Female Banana Plug Jack For Speaker buy it!
$0.50-$0.90
NL4 Male Speaker Cable Speakon Connector buy it!
$0.68-$1.00
DC0044A mini 3 soldering pcb mount pin female dc power jack connector
$0.10-$0.18