Morel SOUNDSPOT ST-95 - Manual (Page 12)

Connect the red or (+) centre speaker output terminal of your
amplifier to the red input terminal on the speaker, and connect
the black or (-) centre speaker output terminal on the amplifier
to the black input terminal on the speaker.
Unplug the electrical connection of the amplifier
before making any connections.
Caring for the SoundCenter
TM
Speakers
To protect the speaker's components, avoid operating the
speaker in extreme humidity or adverse temperature
conditions.
Protect you speaker from exposure to water.