User guide
9
Operation
Power-Up Procedure
• Secure all rear-panel connections between SP20, power amplier(s) and
input sources.
• Plug three-prong power cord from rear of chassis into grounded A.C. wall
outlet. The Power switch defaults to ’off’ when the unit is plugged into a
power receptacle.
• Press power switch (either on the remote or front panel). The screen will
begin the warm-up sequence, rst displaying the Audio Research logo,
followed by SP20 and a series of dots (g. 1 + 2). The home screen will
then appear, and the unit will be muted. Depress the front panel MUTE
button (right button) or the Mute button on the remote to initiate normal
operation.
• Select input source and adjust the volume as necessary.
Shut-Down
• Activate ‘Mute’ function.
• Set Volume level to 0.
• Turn off power amplier(s).
• Press Power switch to ‘off’.
• Turn off input sources.
g. 1 g. 2