ATO LOGIC

The C 272 amplifier may be turned on in any one of three discrete ways for complete system flexibility: From the front-panel switch, the 12V- TRIGGER circuit, or by a “SLEEP/WAKEsignal-sensing circuit. The ON/OFF power control is managed by the Automated Turn-On logic or ATO Logic circuit that requires the amplifier to be switched back to standby in the same manner by which it was activated. In other words, if the amplifier is switched on via a 12V-control signal, it cannot be switched to standby via the front-panel switch, it must wait for removal of the 12V-control signal. In practice, you probably would use only one of the methods once the NAD C 272 amplifier is installed.

ATO LOGIC CHART

SWITCH

Amber LED over

Green

Green

Green

 

front power switch

SWITCH LED

12V-TRIGGER LED

SENSE LED

 

 

 

VACATION switch set to OFF

OFF

OFF

OFF

OFF

 

 

 

 

 

 

 

VACATION switch set to ON

Amber

OFF

OFF

OFF

 

 

 

 

 

 

 

Press front power switch with

Green

ON

OFF

OFF

 

VACATION switch set to ON

 

 

 

 

 

 

 

 

 

 

 

 

Press front power switch with

Amber

OFF

OFF

OFF

 

VACATION switch set to ON

 

 

 

 

 

 

 

 

 

 

 

 

12V TRIGGER

Amber LED over

Green

Green

Green

 

front power switch

SWITCH LED

12V-TRIGGER LED

SENSE LED

 

 

 

VACATION switch set to OFF

OFF

OFF

OFF

OFF

 

 

 

 

 

 

 

VACATION switch set to ON

Amber

OFF

OFF

OFF

 

 

 

 

 

 

 

12 V INPUT TRIGGER = 0V with

Amber

OFF

OFF

OFF

 

VACATION switch set to ON

 

 

 

 

 

 

 

 

 

 

 

 

12V INPUT TRIGGER = 12V with

Green

OFF

ON

OFF

 

VACATION switch set to ON

 

 

 

 

 

 

 

 

 

 

 

 

SLEEP/WAKE

Amber LED over

Green

Green

Green

 

front power switch

SWITCH LED

12V-TRIGGER LED

SENSE LED

 

 

 

VACATION switch set to OFF

OFF

OFF

OFF

OFF

 

 

 

 

 

 

 

VACATION switch set to ON

Amber

OFF

OFF

OFF

 

 

 

 

 

 

 

SLEEP/WAKE SENSE DEFEAT switch

 

 

 

 

 

set to SENSE DEFEAT with VACATION

Amber

OFF

OFF

OFF

 

switch set to ON

 

 

 

 

 

SLEEP/WAKE SENSE DEFEAT switch

 

 

 

 

 

set to SLEEP/WAKE and any source

Green

OFF

OFF

ON

 

input greater than 20mV with

 

 

 

 

 

 

VACATION switch set to ON

 

 

 

 

 

 

 

 

 

 

 

GB

7

Page 7
Image 7
NAD C 272 owner manual ATO Logic Chart

C 272 specifications

The NAD C 272 is a high-performance power amplifier designed for audiophiles seeking exceptional sound quality and versatility. This amplifier integrates advanced technology and robust engineering, making it a popular choice for both home theater setups and stereo systems.

One of the main features of the NAD C 272 is its power output. It is capable of delivering an impressive 150 watts per channel into 8 ohms, with dynamic power reaching up to 300 watts into 4 ohms. This allows the C 272 to drive a wide range of speakers, providing ample headroom for complex musical passages or explosive soundtracks. The amplifier employs a high-current design that ensures it can handle transient peaks without distortion, resulting in a clear and dynamic sound.

The C 272 utilizes NAD's proprietary PowerDrive technology, which intelligently manages the amplifier’s output to deliver the necessary power without sacrificing sound quality. This technology ensures that the amplifier maintains control over the speakers, allowing for detailed and accurate reproduction of music across various genres. Additionally, the C 272 features an adaptive biasing system that optimizes the amplifier’s operation, improving efficiency and thermal performance.

Constructed with a solid chassis, the C 272 is designed to minimize vibration and electromagnetic interference. This helps preserve the integrity of the audio signal, resulting in a transparent and lifelike listening experience. The amplifier's user-friendly design includes a straightforward front panel with power and input select buttons, while the rear panel provides connections for both balanced and unbalanced inputs, making it compatible with a wide range of audio components.

The NAD C 272 also features protection circuits that safeguard the amplifier and connected speakers from overheating and short-circuit issues. This reliability makes it an ideal choice for long listening sessions, ensuring peace of mind while enjoying your favorite music or movies.

In conclusion, the NAD C 272 stands out for its combination of power, technology, and sound quality. The amplifier caters to those who prioritize performance in their audio systems, making it a worthy addition for any serious music lover or home theater enthusiast. With its robust engineering and high-quality components, the C 272 continues to receive accolades for its ability to deliver a rich and engaging listening experience.