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AUTOMATED TURN-ON LOGIC (ATO LOGIC)
The C 275BEE may be turned ON in any one of three discrete ways for
complete system flexibility - from the front panel standby button, the 12V-
TRIGGER circuit or by the input signal-sensing circuit. The ON/OFF power
control is managed by the Automated Turn-On logic or ATO Logic circuit
that requires the C 275BEE to be switched back to standby mode in
ATO LOGIC CHART
CONDITION
POWER switch : OFF
+12V TRIGGER IN/INPUT SENSE Sense: OFF
POWER switch : OFF
+12V TRIGGER IN/INPUT SENSE Sense: OFF
POWER switch : OFF
+12V TRIGGER IN/INPUT SENSE Sense: OFF
POWER switch : OFF
+12V TRIGGER IN/INPUT SENSE Sense: OFF
POWER switch : OFF
+12V TRIGGER IN/INPUT SENSE Sense: OFF
POWER switch : OFF
+12V TRIGGER IN/INPUT SENSE Sense: OFF
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: OFF
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: OFF
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: OFF
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: OFF
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: OFF
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: OFF
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: AUTO
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: AUTO
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: AUTO
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: AUTO
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: AUTO
NOTE
If the +12V TRIGGER IN/INPUT SENSE switch is set to OFF, the presence or absence of +12V trigger input or any input signal at the INPUT sockets will not
have any effect on the C 275BEE, effectively defeating both features.
POWERDRIVE
The C 275BEE uses NAD's proprietary PowerDrive™ amplifier technology
for all channels to preserve accurate, linear reproduction regardless of the
loudspeaker. This uniquely efficient power-supply topology provides the
real-world benefits of high dynamic power that remains uncompromised
by low-impedance speakers.
the same manner by which it was activated. In other words, if the C 275BEE
is switched ON via a +12V-control signal, it cannot be switched to standby
mode via the front panel STANDBY button, it must wait for removal of the
+12V-control signal. In practice, you probably would use only one of the
methods once your C 275BEE is installed.
POWER SWITCH
STANDBY BUTTON
Power
Power
Standby Mode
Switch ON
ON
OFF
(amber)
(blue)
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By adding a second high-voltage rail to our well regulated high-current
power supply, we get an "overdrive" that can nearly double the continuous
power on a short term dynamic power basis. PowerDrive offers greater
amplifier stability and low impedance drive capability, resulting in less
distortion when driving real speakers with real program material.
IDENTIFICATION OF CONTROLS
+12V TRIGGER IN
(using 3.5mm mini-jack plug)
Mini-jack
+12V
0V
unplugged
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REAR PANEL
INPUT SENSE
Input signal
Input signal
>20mV
<20mV
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9
- Quick Links:
- Rear Panel
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