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NAD CI 940 Multi-Channel Power Amplifier

On request
$1,189 RRP $1,399
Special Order

High-quality distributed audio.

High-performance four-channel amplification for custom installation and distributed audio systems. With multiple discrete high-power output devices in the component, it can easily provide instantaneous peak current required for a punchy bass response.

NAD CI 940 Multi-Channel Amplifier

When it comes to the CI 940, NAD’s renowned audio performance combines seamlessly with the flexibility and reliability required for custom integration. Featuring 4 channels of low distortion amplification, the CI 940 smoothly delivers the right amount of current for a powerful and accurate bass response. Designed to fit into standard rack units, the CI 940 is completely protected from both short circuit and overheating, and will automatically restore operation once a condition has been rectified. Furthermore, easy integration is guaranteed with the option of either DC trigger or signal-sensing power-on with auto shut-off. Complete with a detachable power cable for easy service and upgrades, the CI 940 provides an expansive sonic experience unique in this category of products.

Designed by NAD's Engineer Emeritus, Bjørn Erik Edvardsen, the CI 940 represents NAD’s newest generation of high-performance amplification for custom installation and distributed audio systems. The power supply features a custom toroidal transformer that maintains very low impedance for lowest noise and amazing damping factor.

Key Features:
- Four channels of clean, low distortion power set up in two stereo zone configuration
- 35W x 4 @ 8/4 Ohms
- 70W x 2 @ 8 Ohms in Bridge Mode
- Compact 2U rack height with rack ears
- Phoenix speaker connection blocks
- Detachable power cable for easy service and upgrades
- Indicator lamps for each zone that show protection status and amplifier clipping
- <0.5 W standby consumption

User Manual (PDF)

Power and Performance

The CI 940 has 4 channels of clean low distortion power set up in a 2 stereo zone configuration. Boasting 35 watts of continuous power per channel, the CI 940 is designed to drive low impedance speakers and long wire runs. Vanishingly low distortion and near absence of noise allow the music to emerge from a black background that enhances stereo perspective and allows the subtle details of the music to be heard clearly.

Simplicity in Integration

Easy integration is assured by the choice of DC trigger or signal-sensing auto-on with auto shut-off. The CI 940 employs a sophisticated music-sensing circuit to prevent the false triggers common with noisy source components or other types of interference noise like RF leakage or ground loops.

The power cable is detachable for easy service or cable upgrade; the inputs and triggers offer daisy chain outputs. The amplifier is fully protected from short circuit and overheating and automatically restores operation after the condition is rectified. Indicator LEDs for each zone show protection status.

Reliable, Flexible, Easy

The 2U rack height and included rack ears make efficient use of precious rack space. Thermostatically controlled forced air-cooling ensures a long trouble-free service life. Phoenix speaker connection blocks make installation a snap, and wiring further simplified. A bridging feature allows each pair of channels to become a single high power channel.

Award-Winning Sonics

The CI 940 is everything you want for high quality distributed audio as NAD is in the top tier of all amplifier brands, consistently winning awards for both performance and value for money. Known for their warm, expansive and intensely musical sound, NAD amplifiers are designed to drive real-world speaker loads. The NAD CI 940 will bring out the best performance from any speaker giving you the best possible listening experience. It is also very quiet with inaudible residual noise in no-signal conditions, important when using efficient speakers in small spaces. Energy efficiency is also impressive with

About NAD

In 1972, a new kind of audio company was born. NAD took form when a large group of audio-industry importers in Europe, all music lovers, set out to develop products that cut through the industry hype. The goal of NAD was to prove that excellent sound quality and excellent value could exist together. It was a formidable goal – some of the most reputable electronics brands of the time were unaffordable to most, while the affordable spectrum of the market was dominated by poor quality imports from global electronics giants. NAD’s founders remained undeterred and their original vision led to an inspiring story of how a group of specialty audio mavericks took on the Goliaths of the audio industry to carve out a unique place of their own.

Like NAD's home-theatre and Hi-Fi products, the focus of the Custom Integration (CI) range is on performance with DACs, OPAmps, and passive circuit components selected for musical sound quality. NAD is dedicated to innovation, performance, value, and simplicity in all their products.

More Information
Model Number CI940
RRP 1,399.00

Continuous Output Power
8/4 Ohms: 4 x 35W (ref. rated THD, 20Hz-20Hz, all channels driven)
8 Ohms Bridge Mode: 2 x 70W

Rated THD: ≤0.03% (ref. 20Hz-20kHz) (250mW to rated power, CCIF IMD, DIM 100)

IHF Dynamic Power
8 Ohms: 55W
4 Ohms: 85W
2 Ohms: 95W

Damping Factor: >180 (ref. 8 Ohms, 50Hz and 1kHz)
Input Sensitivity: 270mV (ref. rated power)
Voltage Gain: 35dB

Frequency Response
±0.2dB (ref. 20Hz-20kHz)
-3dB at 3Hz and 100kHz

Signal/Noise Ratio, A-Weighted
>95dBA (ref. 1W)
>110dB (ref. 35W)

5-30V In (AC/DC)
-52dBV, 12V Out

Time to Automatic Standby: <10 minutes (without signal at input sense mode)


Rated Power: 270W (120V 60Hz, 230V 50Hz)
Idle Power: <55W
Standby Power: <0.5W
Dimensions (W x H x D): 483 x 105 x 323mm
Net Weight: 6.96kg
Shipping Weight: 8.4kg

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2 Years
All NAD amps and electronics include a 2 year Australian warranty.

If you experience any issues with this product please don't hesitate to contact us.
How much does delivery cost?
Nothing! We offer free post on all orders to anywhere within the Australian mainland and Tasmania.

Can I pick up my purchase from your store?
Yes. You can usually pick up your order from one of our stores. We recommend that you contact us first to ensure your order is ready for collection.

What happens if I'm not happy with my product when it arrives?
We offer a 30 day 100% satisfaction guarantee on all of our products! If your order arrives damaged, faulty or not quite as you expected, please contact us and we will do everything we can to fix the situation.

Please visit our FAQ page for answers to other frequently asked questions or contact us if you have any other questions or comments.