NEUTRIK NL4MPXX speakON 4 pole chassis, black D-size, countersunk screw holes, 3/16″ flat tabs Description panel Connector Type NEUTRIK SPEAKON Quantity 1 Colour/colour coding black Pole number 4 Connection 4-pole SPEAKON Material Plastic/metal Admiss. ambient temp. -30 °C to +80 °C Weight 13 g Other features D series