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





Technics SU-3050


Specifications
Music Power:  50 W at 4 Ω; 44 W at 8 Ω
RMS Power (each channel driven): 
20 W / 20 W at 4 Ω
16 W / 16 W at 8 Ω
Harmonic Distortion:  0,8%
Intermodulation Distortion (60 Hz : 7 kHz =  4:1 SMPTE):  0,8%
Power Bandwidth:  5 Hz - 50 kHz , -3 dB
Residual Hum and Noise:  0,7 mV
Damping Factor:  35 (at 8 Ω)
Lated Load (Main or Remote):  4 - 16 Ω
Input Sensitivity/impedance:
Phono :  2 mV/47 k Ω
Tuner :  190 mV/47 k Ω
Aux :  190 mV/47 k Ω
Mic :  2 mV/10 k Ω
Maximum  Input Voltage [Phono 1 kHz]:  90 mV
Signal-to-Noise Ratio (IHF, A):
Phono :  74 dB
Tuner :  91 dB
Aux :  91 dB
Mic :  77 dB
Frequency Response:
Phono :  RIAA Standard  ±1 dB
Aux :  7 Hz - 90 k Hz  +0 -3 dB
Mic :  20 Hz -20 kHz  +0 -3 dB
Tone Control:
Bass :  +10 dB / -10 dB at 50 Hz
Treble :  +10 dB / -10 dB at 10 kHz
Loudness Control (Volume at -30 dB):  +7 dB at 100 Hz
High Filter:  -6 dB at 8 kHz
Tape Monitor [ tape 1 -2 ]
Playback :  90 mV / 47 k Ω
Rec Out :  90 mV / 1 k Ω
Power Supply:  110/120/220/240 V, 50 /60 Hz
Power Consumption:  120 W
Dimensions (W x H x D):  386 x 115 x 299 mm (15-3/16" x 4-17/32" x 11-25/32")
Weight:  5,7 kg (12,6 lbs)

Produced :  circa 1975
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