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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-V3


New Class A Integrated Amplifier
New Class A circuitry provides class A fidelity and class B efficiency, eliminating switching and crossover distortion. LFB (Linear Feedback) circuitry achieves theoretical zero distortion, zero output impedance. Concentrated power block (CPB) protects audio signal from electromagnetically induced distortion. Electronic protection circuit. High accurate FL peak power meter.

Specifications SU-V3:
Continuous Power Output (both channel driven, 20 Hz - 20 kHz):
2 x 45 W at 4 Ω
2 x 40 W at 8 Ω
Continuous Power Output (both channel driven, 40 Hz - 16 kHz):
2 x 45 W at 4 Ω
2 x 40 W at 8 Ω
Continuous Power Output (both channel driven, 1 kHz):
2 x 50 W at 4 Ω
2 x 45 W at 8 Ω
Total Harmonic Distortion (rated power at 20 Hz - 20 kHz):
0,03% at 4 Ω
0,007% at 8 Ω
Total Harmonic Distortion (rated power at 40 Hz - 16 kHz):
0,03% at 4 Ω
0,007% at 8 Ω
Total Harmonic Distortion (rated power at 1 kHz):
0,007% at 4 Ω
0,003% at 8 Ω
Total Harmonic Distortion (half power at 20 Hz - 20 kHz):
0,007% at 8 Ω
Total Harmonic Distortion (rated power at 1 kHz):
0,003% at 8 Ω
Total Harmonic Distortion (-26 dB power at 1 kHz):
0,05% at 4 Ω
Total Harmonic Distortion (50 mW power at 1 kHz):
0,08% at 4 Ω
Intermodulation Distortion:
Rated Power (at 250 Hz : 8 kh = 4 : 1) :  0,03%
Rated Power (at 60 Hz : 7 klhz = 4:1, SMPTE, 8 Ω) :  0,08%
Power Bandwidth (both channels driven, -3 dB):
5 Hz - 30 kzh (4 Ω, T.H.D. 0,03%)
5 Hz - 30 kHz (8 Ω, T.H.D. 0,02%)
Residual Hum and Noise:  0,5 mV
Damping Factor:  20 at 4 Ω ; 40 at 8 Ω
Input Sensitivity/Impedance:
Phono :  2,5 mV/ 47 k Ω
Tuner, Aux :  150 mV/ 22 k Ω
Tape 1 Rec/Play :  180 mV/ 27 k Ω
Tape 2 :  150 mV/ 22 k Ω
Phono ( maximum input voltage , 1 kHz, RMS) :  150 mV
Signal-to-Noise Ratio (rated power, 4 Ω):
Phono :  78 dB (IHF, A 82 dB)
Tuner, Aux :  89 dB (IHF A, 100 dB)
Signal-to-Noise Ratio (- 26dB rated power, 4 Ω):
Phono : 68 dB
Tuner, Aux :  65 dB
Frequency  Response:
Phono :  RIAA standard curve ±0,88 dB 930 Hz - 15 kHz)
Tuner, Aux, Tape:  2 Hz - 100 kHz  (-3 dB): +0 dB (20 Hz - 20 kHz);  -0,2 dB ( 20 Hz - 20 kHz)
Tone Control:
Bass :  50 Hz -10 dB, -10 dB
Treble :  20 kHz +10 dB, -10 dB
Subsonic Filter :  30 Hz -6 dB/oct
High-cut Filter:  7 kHz, -6 dB/oct
Loudbess Control ( volume at -30 dB):  50 Hz, +9 dB
Output Voltage /Impedance:
Rec Out :  150 mV
Rec/Play :  30 mV/82 k Ω
Channel Balance, Aux 250 Hz - 6,300 Hz :  ±1,9 dB
Channel Separation, Aux 1 kHz :  55 dB
Headphones Output Level /Impedance:  420 mV/ 330 Ω
Load Impedance:
Main or Remote :  4 Ω - 16 Ω
Main and remote :  8 Ω - 16 Ω
Power Supply:  AC 110 / 120 / 220 / 240 V 50/60 Hz
Power Consumption:  460 W
Dimensions (W x H x D):  430 x 97 x 310 mm (16-15/16" x 3-13/16" x 12-7/32")
Weight:  7,2 kg (15,9 lbs)
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