What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





Toshiba SA-735 receiver

AM /FM Stereo Receiver

Specifications

Amp lifier Section

Continuous Power Output:

From 20 t0 20,000 Hz (0,1% T.H.D.)

35 watts per channell at 8 Ω (min. RMS)

45 watts per channel at 4 Ω (Min. RMS)

At 1 kHz Both Channel Driven:

40 watts x 2 at 8 Ω

50 watts x 2 at 4 Ω

Total Harmonic Distortion:  0,1% at rated power output

IM Distortion:  0,1%

Damping Factor:  50

Input Sensitivity/Impedance:

Phono :  2,5 mV / 47 k Ω

Aux :  150 mV / 47 k Ω

Tape 1, 2 :  150 mV / 47 k Ω

Phono Overload Level :  200 mV RMS at 1 kHz

Output Level

Tape Rec 1, 2 :  150 mV

DIN :  30 mV

Frequency Response:

Phono (RIAA Equalization) :  30 Hz - 15 kHz ±0,3 dB

Aux, Tape :  10 Hz - 40 kHz -1,0 +0,5 dB

Tone Control:

Bass :  ±10 dB at 100 Hz

Treble :  ±10 dB at 10 kHz

Loudness Contour: 

+8 dB at 100 Hz

+4 dB at 10 kHz

Signal-to-Noise Ratio (IHF short-circuited A network, rated power)

Phono :  72 dB

Aux, tape :  95 dB

FM Tuner Section

Usable Sensitivity [mono[:  10,8 dBf (1,9 µV)

50 dB Quieting Sensitivity:

Mono :  16,0 dBf (3,5 µV)

Stereo :  39,2 dBf (50 µV)

Signal-to-Noise Ratio:

Mono :  75 dB

Stereo :  68 dB

Distortions

At 100 Hz :  0,15% [mono]; 0,2% [stereo]

At 1 kHz ;  0,15% [mono]; 0,2% [stereo]

At 6 kHz :  0,25 [mono]; 0,3% [stereo]

Frequency Response:  20 Hz to 15 kHz -1,5 +0,5 dB

Capture Ratio:  1,0 dB

Alternate Channel Selectivity:  65 dB

Spurious Response Ratio:  75 dB

Image Rejection ratio:  60 dB

IF rejection ratio:  90 dB

AM Suppression ratio:  50 dB

Stereo Separation:  45 dB (at 1 kHz); 30 dB (30 Hz - 15 kHz)

AM Tuner Section

Sensitivity:  300 µV /m (IHF, ferrite antenna)

Selectivity:  35 dB

Signal-to-Noise Ratio:  50 dB

Image Rejection Ratio:  45 dB

Miscellaneous

Power Requirements:  AC 220/240 50 Hz

Power Consumption:  270 watts

Dimensions (W x H x D):  450 x 145 x 400 mm

Weight:  11,5 kg

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