WPX8-NL4MPUC - 8 Port 4 Pole Speakon Wall Plate

Rear terminals are 1/4" male spade connectors for soldering.
As an alternative to soldering you could use crimp female disconnects, found HERE

Plate Specs & Info
Height x Width2.50" x 16.75"
Mounting Info?Mounting info found Here
Old Stock Number?WP4SPKHC8

WPX8-NL4MPUC Front View

Front

WPX8-NL4MPUC Rear View

Rear