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Equipment > Tuners > NAD - C 427 AM/FM Tuner
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FM remains one of the most reliable and best sounding mediums for hassle-free music listening. NAD's C 427 builds on the strengths of previous NAD tuners by offering a quality of reception that is as good as, or better than, the quality of today's broadcasts. C 427 carries forward a highly sensitive RF Front End for cleaner reception in fringe areas, plus noise is extremely low across the audio spectrum. In line with NAD's environmental policy, a completely redesigned power supply improves efficiency and ultra-low power consumption during standby while still allowing all remote activation and control interfaces. The rear panel IR Input, and RS-232 port, allows the C 427 to be easily integrated with sophisticated system controllers used in custom installation. C 427 also has one of the most intuitive user interfaces in the market utilizing a 24-position rotary encoder knob to more quickly tune stations or select preset stations. All functions are available via the included IR Remote Control.

Loads of Presets
With 40 presets available you can store all your favorite radio stations. These presets can be any combination of AM and FM stations: 30 presets for FM and 10 for AM, or 25 for FM and 15 for AM, for instance. To avoid having to scroll through 40 presets, the C 427 skips any that have not been programmed (left empty), so you can quickly access all your favorite stations.

Simply Convenient
Instead of littering the front panel with buttons and features that are hardly ever used, the C 427 concentrates on convenience in daily operation. The RDS limits itself to the RDS PS and RT function, both of which enhance ease of operation. The RDS PS (Program Service) will automatically indicate the name of the radio station on the display, e.g., "BBC R1", so you will always know exactly what station you are listening to. With its four-line graphic display, you always see all the available information. 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 amount of time.

Great Reception
Auto Search automatically stops at the next strong radio signal it comes across 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. Although AM can never reach the quality of any FM transmission, the C 427's AM section retains excellent clarity together with lowest possible background noise.

Performance Driven
Apart from its ease-of-use, the NAD C 427 also offers features to get the maximum out of the airwaves. The MOS-FET RF Front End design together with high quality components and careful PCB layout guarantees excellent sensitivity with low intermodulation distortion to provide quiet and musically satisfying performance.

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

Usable Sensitivity (999/1000kHz): 55dBµV
Signal/Noise Ratio (5mV in): 42dB
Total Harmonic Distortion (5mV in): 1.5%
IF Rejection (450kHz): 40dB
Image Rejection (F+2xIF): 28dB
Selectivity: 20dB
Loop Sensitivity (20dB S/N):
   999/1000Hz: 66dB
   603/300Hz: 66dB
   1404/1400Hz: 66dB

Standby power: <0.5W
Dimensions (WHD): 17-1/8" x 3-15/16" x 12-7/16"
Weight: 10.1 lbs.

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