Aiwa AX-S50 receiver

Mini Receiver Features

Adjustable synthesizer sensitivity control

4-digit LED tuning display

Auto search synthesizer tuning

7-point LED peak power meter/tuning signal strength display

FM muting and Loudness control

Click-stop bass/treble tone controls

Connections for Aux, Phono , Tape

Front panel headphone jack

 

A smart looking receiver of incredibly compact dimensions, the AX-S50 puts out a lively 20 Watts per channel; its main appeal however is in its many sophisticated features, some so advanced they are just beginning to make their appearance in current full-sized receiver models.

For fully electronic one-touch tuning capability, the tuner section incorporates a quartz PLL synthesizer which selects the station either automatically or manually. Up to 10 stations may be programmed into the tuner's "memory" and selected at random, irrespective of band. An A/B switch (A=1-5/B=6-10) serves to reduce the number of switches for a cleaner control arrangement.

As in other Aiwa mini units, capable phono equalizer design promises high signal/noise ratio (80 dB) and ample overload capability (180 Mv at 1 kHz). The RC-R300 wireless remote control system (optional) can also be added to give the AX-S50 even more versatility; wireless remote functions include manual station tuning selection of preset radio channels and listening modes, up/down volume adjustment and operation of the SD-L60 cassette deck.

 

Specifications

Tuner Section

Frequency Range:  87,5 MHz to 108 MHz

Usable Sensitivity:  11,2 dBf (2uv)

50 dB Quieting Sensitivty

Mono :  4,0 µV (17,2 dBf)

Stereo :  44 µV (38,0 dBf)

Signal-to-Noise Ratio:

Mono :  75  dB (70 dB DIN)

Stereo :  70 dB (66 dB DIN)

Capture Ratio:  1,5 dB

Selectivity:  65 dB (±400 kHz){

Total Harmonic Distortion

Mono :  0,15%

Stereo :  0,3%

Stereo Separation:  40 dB (at 1 kHz)

AM Tuner Section

Frequency Range: 

MW :  525 kHz - 1,605 kHz

LW :  150 kHz - 285 kHz

Usable Sensitivity:

MW :  300 µV/m (Bar antenna)

LW :  800 µV/m (Bar antenna)

MW :  30 µV/m (ext. antenna)

LW :  50 µV/m (ext. antenna)

Signal-to-Noise Ratio

MW :  52 dB

LW :  50 dB

Selectivity:  30 dB

Amplifier Section

Power Output:  20 watts per channel, Min. RMS at 8 Ω  from 20 - 20,000 Hz, with no more than 0,3% T.H.D.

Total Harmonic Distortion :  0,3% (at 8 Ω ), 1% (DIN)

Frequency Response:  40 Hz to 16,000 Hz ±1,5 dB

Power Bandwidth:  10 Hz - 40 kHz

Damping Factor:  30

Separation:  35 dB (1 kHz)

Crosstalk:  60 db

Input Sensitivity/Impedance

Phono :  2,5 mV/47 k Ω 

Aux, Tape,:  150 mV/47 k Ω

Signal-to-Noise Ratio

Phono :  80 dB

Aux, Tape :  90 dB

Phono RIAA Curve:  30 Hz -15 kHz ±0,5 dB

Phono Overload:  180 mV (1 kHz)

Semiconductors:  16 ICs; 4 FETs; 56 Transistors; 69 Diodes; 18 LEDs

Power Requirements: AC 220 - 240 V, 50/60 Hz

Power Consumption:  150 W or 140 W

Dimensions (W x H x D):  250 x 71 x 316 mm (9-7/8" x 2-13/16" x 12-1/2")

Weight:  3,6 kg (7,9 lbs)