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Naim Audio

Naim Classic NAIT 5SI

Regular price $2,299.00 USD
Regular price Sale price $2,299.00 USD
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Redefining an icon.



The NAIT 5si is our 60W per channel introduction to high-performance integrated amplification. Another Naim Audio amplifier that can claim a common heritage with our classic NAIT model, the NAIT 5si will get straight to the heart of your music. It engages even the most complex rhythms and demanding dynamics with all the grip and authority you would expect from us. Its clever AV bypass mode, which facilitates an easy co-existence of otherwise distinct AV and hi-fi systems, simply adds to its appeal.





  • 60W per channel power output
  • Four inputs with support for both DIN and RCA connections
  • 1/4” (6.35mm) headphone output
  • AV bypass mode for simple connection to an existing AV system




Technology & Craft

Decades have passed, but the role of the NAIT 5si is fundamentally the same as its original forebear. So the engineering challenge - to maximise performance whilst maintaining engineering efficiency, quality and reliability - hasn't changed. Amplifier technology has moved on considerably however, and while the NAIT 5si occupies the same position in the Naim Audio range as the original NAIT, its performance might be from a different world.

The NAIT 5si provides four analogue inputs and a 60 Watt per channel power amplifier. It borrows numerous technologies from across the spectrum of Naim Audio products; all dedicated towards maximising its ability to communicate the fundamentals of music. And communicate it does. The NAIT 5si brings clarity, engaging dynamics and, most of all, infectious enthusiasm to every music source and genre.



Gorgeous Naim Nait Amplifier Restoration & Review - Read More 

"If you have sensitive speakers, the diminutive Naim Nait is a great option for a smaller system." - Liquidaudio

Naim Audio NAIT 5si integrated amplifier - Read More 

"When my fantasy ended, I realized that, at a thousand quid, the Naim NAIT 5si is a world-class integrated amplifier that delivers more audio precision and musical enjoyment than any self-respecting anti-imperialist should ever need." - Herb Reichert


Naim Nait 5si review - Read More 

"Offering a great build quality, a solidity that is a watchword in the industry as a whole, a classic, traditional yet subdued design and a simple, easy-to-use interface, the Naim SuperNait 3 sits like a piece of granite in your hi-fi chain.

And in that chain, it will take control of your entire hi-fi chain by the scruff of the neck and never let go. Providing an assured performance, be glad that this beast is on your side." - The Audio Phileman


Naim Supernait 3 – HiFi Review - Read More 

"We like the Naim’s smart-yet-simple look; it has a great build (which happily extends to the remote control, too). There’s no doubting the Nait 5si’s talents; it will shine at the core of any system made up of talented-sounding, like-minded electronics.

We knew it was a class act when we first heard it. It’s been a year since then, yet this hasn’t changed our minds. The competition is tough, but this is a five star performer." - What Hi-Fi?


Audio Inputs

Input Impedance 20kΩ
Analogue Input 2 x DIN, 4 x RCA
Input Sensitivity 150mV

Audio Outputs

Audio Outputs Speakers, HDD
Other Outputs Headphone, 1/4" jack
Line Outputs Fixed (level) 150mV, 600Ω


Case Black powder coated
Front Black powder coated


Shipping Weight 8.6 kg
Shipping Dimensions 200 x 590 x 500 mm
Weight 6.8 kg
Dimensions (HxWxD) 70 x 432 x 301 mm


Power Consumption (max.) 300VA
Mains Supply 100V, 115V, 230V; 50 or 60Hz
Power Consumption (quiescent) 19VA

Speaker Outputs

Power Output 60W/channel, 8Ω
Transient 300VA

Supplied with

Supplied with NARCOM-4 Remote Control, Power-Line Lite mains cable (UK denominations only)

User Control

Front Panel Volume Control, four button matrix
Remote Control Infra Red (RC5)