MANUAL AND AUTOMATIC TURN ON-OFF OPTIONS
You can manually turn the A 51 on and off with its front panel On-Off button. It can also be triggered
to turn on and off automatically when your preamplifier, surround controller, or system controller is
turned on and off.
Manual On-Off from the Front Panel
If you want to manually turn on and off the A 51 at any time, you need to first select the Manual On-
Off option by placing the
Auto Turn On
switch (on the rear panel) to its middle
Man
(Manual) position.
Connecting an Active Audio Source for Automatic On-Off
If you want to automatically turn on the A 51 whenever music is playing (an audio signal is present),
choose the audio triggering option by moving the
Auto Turn On
switch to its upper
Audio
position.
What You’ll Need:
•
An audio source that’s playing
Before Connecting
❑
Remove power to all the components in your audio system.
❑
Make sure the
Auto Turn On
switch on the A 51 is in its
Audio
(up) position.
❑
Set the
Audio
triggering
Sensitivity
adjustment knob on the rear panel to the desired level.
Start with the 12 o’clock position.
To Connect
Connect an active audio source to either the
Ch 1 Balanced or Unbalanced Input
jacks.
(Refer to to pages 2 and 3).
6
YOU SHOULD KNOW
Turn Off Delay in the Audio Mode
When the music stops, the A 51 will remain on for about five minutes. This delay prevents
unwanted turn-off during silent passages in music or during the pauses between tracks.
Parasound Products, Inc.
San Francisco, CA USA
Manufactured under
license from Lucasfilm
Ltd. Lucasfilm and THX
are registered Trademarks
of Lucasfilm Ltd.
CAUTION
To Prevent Electric Shock,
Do Not Remove Cover. No
User-Serviceable Parts Inside,
Refer Servicing To Qualified
Service Personnel.
L U C A S F
I
L M
L M
A51 Amplifier
WARNING
To Prevent Fire Or Shock
Hazard, Do Not Expose This
Unit To Rain Or Moisture.
AC 115V 60Hz
AC 230V 50Hz
Power Consumption: 1800W
Input
12 V
Man
Audio
50 mV 250
Ground
Normal
Lift
Auto Turn On
Sensitivity
Fuse
T15A/250V1-115V Area
T8A/250V-230V Area
Ch 1
Ch 2
Ch 3
Ch 4
Ch 5
Balanced
Unbalanced
Input Select
Auto Turn On Switch, set to up position
Parasound Products, Inc.
San Francisco, CA USA
Manufactured under
license from Lucasfilm
Ltd. Lucasfilm and THX
are registered Trademarks
of Lucasfilm Ltd.
CAUTION
To Prevent Electric Shock,
Do Not Remove Cover. No
User-Serviceable Parts Inside,
Refer Servicing To Qualified
Service Personnel.
L U C A S F
I
L M
L M
A51 Amplifier
WARNING
To Prevent Fire Or Shock
Hazard, Do Not Expose This
Unit To Rain Or Moisture.
AC 115V 60Hz
AC 230V 50Hz
Power Consumption: 1800W
Input
12 V
Man
Audio
50 mV 250
Ground
Normal
Lift
Auto Turn On
Sensitivity
Fuse
T15A/250V1-115V Area
T8A/250V-230V Area
Ch 1
Ch 2
Ch 3
Ch 4
Ch 5
Balanced
Unbalanced
Input Select
Auto Turn On Switch, set to middle position
