Specification:
Deeper connecting columns can fix the wire head without loosening.
They are twist locks with a latch release device, which can be easily unlocked by hand even if you cannot see the back of the connector.
Quick lock speaker connector: Twist lock 4-pole speakOn cable connector, chuck type stress relief device, dark gray bushing provide extremely reliable and sturdy cable connector and reliable locking system.
SpeakOn wiring: screw-type terminals or welding, improved screw type terminals to achieve maximum pulling force, cable retention force depends on cable outer diameter and material (cable outer diameter range: 8-14 mm).