Certon M21 User’s Manual
3
Getting Started
Thank you for purchasing the Certon M21 monaural power amplifier. The M21 features
patent awarded technology for achieving powerful high-fidelity sound from a small enclosure.
The M21 is typically used in a stereo or multi-channel set-up. Each channel requires its own
power amplifier. Simply connect each M21 in a set-up to its respective loudspeaker. The M21
has loudspeaker output binding posts that accept bare wire, banana plugs or forks. Pay
attention to the polarity of the loudspeaker. Make sure the wires are firmly attached, and are
not short-circuiting the outputs of the amplifier. Connect the RCA-type phono or XLR input
of the M21 to the audio output of your pre-amplifier, home-theater processor or other similar
audio equipment. Make sure the audio source toggle switch in the back is in its corresponding
position. Attach the power cord to the power inlet of the amplifier, and to a power grid outlet.
Turn on the power switch at the back of the M21, and press the on/off push-button on the
front panel. Your M21 should be ready for operation in a few seconds, in which case a steady
light from a LED on the push-button would indicate this.
