The Model
402 embodies NAD's conviction that convenience, flexibility, and ease of use
can be achieved with absolutely no compromise in sound quality. The 402 has AM
and FM; preset distortion-free tuning for 60 radio stations
60 Presets
30 AM and 30 FM radio stations
NAD-Link
Connectors allow control to and from other units
Blend
facility to reduce noise at low signal strengths
75 Ω coax
antenna connector
Lock
facility to automatically tune precisely onto a station
Three
separate modes of tuning with 25 kHz accuracy
Flexible
Tuning
The 402 has
three convenient tuning modes:
Search:
Scans rapidly up or down in frequency, stopping automatically at the next
strong station.
Preset: Up
to 30 FM and 30 AM station frequencies can be stored in memory and instantly
recalled. The "non-volatile" memory needs no battery or other power;
frequencies are retained during power outages, even if you unplug the receiver
for weeks at a time.
Tune:
Dual-resolution tuning lets you scan rapidly through the broadcast band (with
constant pressure on an up/down tuning button), or fine-tune in small 0,025 MHz
steps by tapping on the buttons. This lets you optimise the reception of a weak
station adjacent to a strong one.
Sensitive
Digital Tuning
Precise
digital frequency-synthesis circuits guarantee that each station is tuned with
crystal-controlled accuracy. A dual-gate MOSFET FM circuit pulls in weak
stations clearly but resists overloading on strong signals. A balanced
quadrature detector provides consistently low distortion, even with
over-modulated broadcasts. The composite stereo signal is phase-compensated to
guarantee wide stereo separation at all frequencies, not just in the midrange.
Sharp
selectivity, low noise
Linear-phase
ceramic filters in the I.F. circuit provide an ideal combination of sharp
selectivity and minimum distortion. Low-loss design gives the optimum signal
level to the PLL MPX decoder, yielding a signal-to-noise ratio of nearly 75 dB
with strong signals. So with local stations the ultimate stereo guieting is
limited not by the receiver but the station itself.
Specifications
FM Tuner
Section
Input
Sensitivity:
Mono (-30 dB
T.H.D.+N) : 1,3 dBf (1,0 µV/75 Ω)
Mono (-50 dB
SN) : 15 dBf (1,5 µV/75 Ω)
Stereo (50
dB SN) : 37 dBf (20 µV/75 Ω)
Stereo (60
dB SN) : 47 dBf (60 µV/75 Ω)
Capture
Ratio: less than 1,6 dB (45 to 65 dBf)
AM
Rejection: more than 60 dB (45 to 65
dBf)
Selectivity:
Alternate
Channel: 58 dB
Image
Rejection: 70 dB
RF.
Intermodulation: 60 dB
I.F.
rejection: 90 dB
Subcarrier
Suppression: 60 dB (19 and 38 kHz)
T.H.D. at
100% Modulation
Mono (1
kHz): 0,1%
Mono (100 Hz
- 6 kHz) : 0,2%
Stereo (1
kHz) : 0,1%
Stereo (100
Hz -6 kHz) : 0,3%
Signal-to-Noise
Ratio (at 65 dBf, IHF weighted)
Mono : better than 80 dB
Stereo
: better than 74 dB
Frequency
Response 30 Hz - 15 kHz: ±0,5 dB
Stereo
Separation:
1 kHz : 45 dB
30 Hz - 10
kHz : 35 dB
AM Tuner
Section
Usable
Sensitivity: 5 µV
Selectivity: 30 dB
Image
Rejection: 45 dB
I.F.
rejection: 35 dB
Signal-to-Noise
Ratio (30% modulation, 50 mv Input): 45
dB
Total
Harmonic Distortion: 0,5%
Physical
Specifications
Power
Ratting: 120,, 220 0r 240 V, 50/60 Hz
Power
Consumption: 150 W
Dimensions
(W x H x D): 420 x 91 x 273 mm
Weight
[net/shipping}: 6 kg/7,1 kg
No comments:
Post a Comment