NAD 4225 tuner

 

NAD FM/AM Tuner, features:

Ultra, linear LF Filters

Switchable Blend Circuit

14 Random AM/FM presets

 

Specifications

Input Sensitivity

Mono (-30 dB , T.H.D. +N) :  11,3 dBf (2,0 µV/300 Ω)

Mono (50 dBS/N) :  15 dBf (3,0 µV/300 Ω)

Stereo (50 dBS/N) :  37 dBf (40 µV/300 Ω)

Stereo (60 dBS/N) :  47 dBf (120 µV/300 Ω)

Capture Ratio: (45 and 65 dBf):  less than 2,0 dB

AM Rejection (45 and 65 dBf) :  better than 65 dBf

Selectivty, Alternate Channel :  65 dBf

Image Rejection:  90 dB

RF Intermodulation:  65 dB

IF Rejection:  100 dB

SCA Rejection:  60 dB

Spurious Rejection:  100 dB

Subcarrier Suppression (19 and 38 Hz):  60 dB

Output Impedance:  600 Ω

Total Harmonic Distortion (at 100% mod.)

Mono (1 kHz) :  0,09%

Mono (100 Hz - 6 kHz) :  0,2%

Stereo (1 kHz) :  0,09%

Signal-to-Noise Ratio (65 ddb, IHF Weighted)

Mono :  80 dB

Stereo :  75 dB

Frequency Response:  30 Hz - 15 kHz ±0,5 dB

Stereo Separation:  50 dB (11 kHz)

FM NR off (30 Hz - 15 kHz) :  35 dB

AM Section

Usable Sensitivity:  5 µV

Selectivity:  35 dB

Image Rejection:  30 dB

IF Rejection:  35 dB

Signal-to-Noise Ratio (30% mod. 50 mV input):  45 dB

Total Harmonic Distortion :  0,3%

General

Power Requirements:  100, 120, 220 or 240 V AC, 50/60 Hz

Power Consumption:  10 watts

Dimensions (W x H x D):  420 x 762 x 250 mm (16,5" x 3" x 10")

Weight (net):  3,2 kg (7 lb 1 oz)