Leviton AEHTK Installation Instruction page 4

4. Connect amplifier speaker outputs to corresponding spring
post connectors on the Home Theater Wallplate by stripping
approximately one inch of insulation from the speaker wire.
Push in on the spring post until the holes in the post line up
and insert bare portion of wire through the hole and release
spring post. Spring pressure will maintain contact on the
speaker wire.
NOTE: It is not necessary to use all of the connections on the
wallplate. If the system is a 5.1 surround style system, then
only those connections on the wallplate for left front, center,
right front, surround left and surround right, are used.
NOTE: For a 6.1 surround system, the connection labeled
"Surround Back Left" is added for the rear center speaker. To
connect a 7.1 surround system, use all of the spring post
connectors.
5. If the source amplifier has an LFE (Low Frequency Effects)
connection, use an RCA cable to connect it to the RCA jack in
the Home Theater Wallplate the subwoofer is connected to.
Otherwise, use the subwoofer output (refer to the owners
manual for the amplifier being used) for this connection.
6. Use an RCA patch cord to connect the subwoofer to the wall
plate at the subwoofer location.