NAD C 427

AM/FM tuner

Item #: 745C427

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9 Reviews

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Top-notch reception and convenient use

Listening to music, catching a ballgame, keeping up with the news.... There are several reasons why a strong AM/FM tuner can be a key addition to your home stereo system. The NAD C 427 tuner makes sure your radio stations come through clearly by using a low-distortion design and features such as "FM Mute," which eliminates inter-station tuning noises,.

With the C 427's 40 available presets and simple controls, you can store and scroll through your favorite radio stations with ease. The tuner's screen displays Radio Data System information, so you can see what station, artist, and song you're listening to (available with select FM stations). You can control it with the supplied remote, or integrate it with your existing external controller or universal remote. The NAD C 427 works well with NAD's highly-regarded integrated amplifiers.

Product Highlights:

  • 40 AM/FM station presets
  • 24-position rotary knob for switching between preset stations
  • displays Radio Data System (RDS) Program-Service and Text information for station name, artist, and song info (available with select FM stations)
  • auto and manual tuning
  • "Blend" feature narrows stereo separation for clearer reception of noisy stations
  • RS-232, IR input and +12V input for use with other remotes and controllers
  • stereo RCA output (cable included)
  • AM and FM antennas included
  • detachable power cord
  • remote control included
  • FM harmonic distortion: 0.4% (mono), 0.8% (stereo)
  • FM signal-to-noise ratio: 65 dB (mono), 60 dB (stereo)
  • 17-1/8"W x 3-15/16"H x 12-7/16"D
  • weight: 10.1 lbs.
  • warranty: 2 years
  • Our 60-day money-back guarantee

NAD C 427 Reviews

Average Customer Review:

9 reviews
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NAD C 427 Tuner

Written By Dr. Rick, Oregon on Monday, November 16, 2015

Crutchfield Customer Review (What's this?)

The NAD tuner is a replacement for my old ADCOM GTP-500 ll which I've had for about 30 years (this is a preamp/tuner, it is the preamp that was failing). I was a bit anxious about finding an AM/FM tuner that was at least as good as the ADCOM. The worry was not warranted as the NAD tuner surpasses the ADCOM in every aspect: selectivity, sensitivity, muting between stations and channel separation. The controls are simple and while comprehensive, do not add unwanted and unnecessary functions. I also appreciate the understated overall appearance ( I am not a fan of multi-colored flashing LEDs that are just annoying ). The price is a bit higher than some inferior products, but since I maintain my equipment for years, the extra cost vs. value makes sense. Again, no need for anxiety.

Pros: Nad's known quality, overall tuner functionality and simplicity, clean understated appearance.

Cons: Other than the relatively higher cost, no complaints

NAD C 427 AM/FM tuner

Written By Michael M, New York on Tuesday, October 06, 2015

Crutchfield Customer Review (What's this?)

This is the best tuner by far of the six I have owned. The design is attractive and straightforwardly functional; the only thing I miss is some sort of signal strength indicator, though this is not an issue. The signals come in clean and quiet. The wire antenna supplied with the unit is entirely adequate. My local stations come in loud and clear, of course, but even the stations in Toronto are adequately handled. I recommend this product without reservation.

Pros: Excellent reception, fine design.

Cons: None worth mentioning.

tuner with great reception

Written By Bryan, Washington on Thursday, September 17, 2015

Crutchfield Customer Review (What's this?)

Since I have had this tuner now for several weeks, it has grown on me for the way it performs well, locks in on a good multitude of stations, displays radio station data text from stations that enable this, and it is incredibly easy to use in the famous NAD fashion. I really like their uncluttered look on outside, great sound quality on the inside. Very happy with this tuner in my all audio only setup(NAD CD player, NAD pre-amp, NAD amp. I am glad I decided on this brand and would recommend this NAD tuner. It may look simple but it definitely feels well built for what it is, as do the rest of NAD's lineup.

Pros: simple to use, sounds great, has great reception, built solid.

Cons: just the ever disappearing paper manuals, but not a deal breaker for sure.

Solid Unit

Written By Bob, California on Sunday, August 09, 2015

Crutchfield Customer Review (What's this?)

I had an Adcom that died. The NAD is picking up a stronger signal. Seems like a very good tuner.

Cons: There are tuner/preamps out there. This is just a tuner. Just an FYI

NAD C 427

Written By Phil, Indiana on Tuesday, June 30, 2015

Crutchfield Customer Review (What's this?)

I presume 5 being the highest rating. Good quality AM/FM receivers are hard to find. And your receiver I bought fits all of the criteria I set form. Being literally separate from the rest of your equipment means a great deal to me.

NAD C427 Tuner excellent value!

Written By Robert W., New Jersey on Sunday, April 26, 2015

Crutchfield Customer Review (What's this?)

I have a 50+ year history with FM tuners, and have owned everything from Mcintosh tube tuners to internet tuners. I was looking for a reasonably priced solid state FM tuner to use with my high quality headphone amp setup (Graham Slee/ Grado GS1000i). This tuner is an exceptional value - good sensitivity, excellent frequency response, quiet background with the Blend feature. I am very pleased!

Pros: Good sensitivity (with a decent antenna), excellent frequency response,quiet background (blend circuit reduces noise yet still retains decent stereo separation)

Cons: None at this price- only slightly lower performance compared to the megabuck tuners

Tuning In...

Written By Geoff, Washington on Friday, April 03, 2015

Crutchfield Customer Review (What's this?)

I was looking for an AM/FM tuner to compliment the Marantz PM6005 amplifier and CD6005 CD player which I purchased from Crutchfield. Initially, I considered both the Yamaha T-S500 and the NAD C427. Both had 40 presets, more than I will ever need, and both were recommended by those who purchased them. Perhaps the factor, albeit a minor one, which swung me to the NAD C427 was the RDS function. Pretty neat! The tuner is working beautifully.

Pros: Great reception. Tuning and setting up of the presets were simple. RDS function.

Cons: None

Best Tuner in this Price Range

Written By Bret, Chicago on Saturday, January 03, 2015

Crutchfield Customer Review (What's this?)

This is the best tuner I could find without going into the megabuck range. It gives you everything you want in a tuner and nothing you don't. The RDS display is a nice touch. It looks great in my audio rack. I describe the apparance as clean, elegant, and professional.

Pros: Great Sound Quality, Good Looks

My C 427

Written By Mark H, Idaho Falls on Saturday, May 17, 2014

Crutchfield Customer Review (What's this?)

I'm excited about this tuner. I like the looks, weight, and of course the way it sounds. I don't like that I have to order the full instructions to be able to use it properly. Other than that, I received it in 3 days from the good folks at Crutchfield. I've ordered and received other equipment from them and I recommend them.

Pros: Sound, and looks.

Cons: No instructions.

Hands-on research

What's in the box?

Download owner's manual

  • AM/FM Tuner
  • 6.5' AC power cord
  • Remote control (TNR 3)
  • 2 "AAA" batteries
  • AM loop antenna
  • FM wire antenna
  • Balun
  • 38" Stereo RCA cable
  • Quick Setup Guide
  • Warranty Card

Product Research



RDS: The RDS limits itself to the RDS PS (Program Service) and RT (Radio Text) function, both of which enhance ease of operation. The RDS PS will automatically indicate the name of the radio station you are listening to in the display. At the touch of a button, RDS RT will display additional information broadcast by the radio station, such as the presenter, the music playing, etc.

Fine Tuning: With each brief rotation of the C 427's front-panel rotary dial, the tuner will take 0.05 MHz steps for the FM band and 10 kHz for the AM band. You can also use the remote's numeric keypad to directly enter a station's identification number. Auto Search automatically stops at the next strong radio signal and optimizes tuning. Weaker radio stations can be tuned into manually. Stations that are quiet in Mono, but noisy in Stereo can benefit from the "Blend" feature that narrows stereo separation and improves noise. FM Mute eliminates inter-station tuning noise and only allows strong and clear stations to emerge from the silent background.

30 Presets: With 40 presets available, you can store all your favorite radio stations in any combination of AM and FM stations. To avoid having to scroll through 40 presets, the un-programmed (empty) ones are skipped to give you quick access to all your stations. All the preset information is stored in the C 427's non-volatile memory, which means it will remember all of its preset information even if the unit has been unplugged for a prolonged period.

Connections: The NAD C 427 tuner features a threaded F-type connector to connect the included FM wire antenna, and two spring-clip terminals to connect the included AM loop antenna (you can upgrade antennas). The NAD C 427 is fitted with a set of stereo RCA outputs and comes with a 38" audio cable to connect the tuner to your AV receiver. The rear panel IR input (3.5mm), +12V Trigger input (3.5mm), and RS-232 port allow the C 427 to be easily integrated with sophisticated system controllers used in custom installation. The tuner also comes with a detachable 6.5' AC power cord.

Simple Operation: Instead of littering the front panel with seldom-used buttons and features, the C 427 concentrates on the essentials. It features an intuitive user interface with a 24-position rotary encoder knob to quickly tune stations or select preset stations. The included IR remote provides wireless operation of the tuner.

VFD: The C 427 features a Vacuum Fluorescent Display which provides visual information on the settings, conditions, status, and other information relevant to the currently tuned station. The display offer three brightness settings.

Sleep Mode: The tuner's Sleep Mode timer will switch the C 427 to "standby mode" automatically after a preset number of minutes (30, 60, 90, or Off).


FM Section:

  • Frequency Response: 20 Hz - 15 kHz (±1.5dB, 60 dBµ)
  • Usable Sensitivity (98 MHz): 10 dBµ
  • Signal/Noise Ratio: 65 dB (60 dBµ IHF-WTD Mono); 60dB (60 dBµ IHF-WTD Stereo)
  • Channel Separation:
    • 30 Hz: 33 dB
    • 1 kHz: 40 dB
    • 10 kHz: 32 dB
  • Capture Ratio (40 dBµ): 3 dB
  • AM Suppression: 50dB (60 dBµ, 100% Mod. FM, 30% Mod. AM)
  • Image Rejection (119.4 MHz): 70 dB
  • I.F. Rejection (10.7 MHz): 70 dB
  • Pilot Suppression (60 dBµ): 60 dB
  • Total Harmonic Distortion: Mono 0.4%; Stereo 0.8%
  • Auto Search Sensitivity: 24 dBµ
  • RDS Decode Sensitivity: 26 dBµ

AM Section:

  • Frequency Response (100-2.3kHz, 5 mV): ±6 dB
  • Usable Sensitivity (999/1000Hz): 55 dBµ
  • Signal/Noise Ratio (5 mV In): 42 dB
  • Total Harmonic Distortion (5 mV In): 1.5%
  • IF Rejection (450 kHz): 40 dB
  • Image Rejection (F+2xIF): 28 dB
  • Selectivity: 20 dB
  • Loop Sensitivity (20dB S/N):
    • 999/1000 Hz: 66 dB
    • 603/600 Hz: 66 dB
    • 1404/1400 Hz: 66 dB

Standby Power: <0.5W

Our Product Research Team

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