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





Marantz model 1072



Specifications
Audio Section
Power Output (DIN Standards, 4 ohm):  77 W per channel
Power Output (FTC American Standards, 4 ohm):  46 W per channel
Total Harmonic Distortion:  0,08% (at rated output)
I M Distortion (250 Hz and 8 kHzMixed, Amplitude Ratio 4:1):  0,08% (at rated power output)
Power Output (DIN Standards, 8 ohm):  50 W per channel
Power Output (FTC American Standards, 8 ohm):  36 W per channel
Total Harmonic Distortion:    0,05% (at rated output)
I M Distortion (250 Hz and 8 kHz Mixed, Amplitude Ratio 4:1):  0,05% (at rated power output)
Power Bandwidth:  15 Hz ~ 60 kHz
Damping Factor (8 ohm):  45
Frequency Response:
Phono (RIAA) : ±0,5 dB
Aux : 15 Hz - 60 kHz (±1 dB)
Phono Input Terminal:
Impedance : 47 kohms
Capacitance : 100 pF
Sensitivity : 2,0 mV
Overload Margin : 35 dB
Aux Input terminal:
Impedance : 25 kohms
Sensitivity : 180 mV
Phono Equivalent Input Noise:  0,5 µV
Phono Dynamic Range (Ratio of input overload to equivalent input noise):  100 dB
Channel Balance (0 to -40 dB/40 Hz - 16 kHz)
Phono : 3 dB
Aux : 3 dB
Interchannel Crosstalk (at 1 khz):
Phono : 47 dB
Aux : 62 dB
Tape : 62 dB
Intersource Crosstalk (Worst Point), 1 khz:  55 dB
Tape Output Voltge/Impedance, 1 kHz : 775 mV/220 ohms
Headphone Jack load Impedance:  4 ohms
General Section
Power requirements:  110 / 120 / 220 / 240 V AC, 50/60 Hz
Power Consumption (at rated output, both channel driven):  160 W ±20 W
Idling Power:  14 W ±5 W
Semiconductor Complement:
Transistors : 45
Diodes : 26
Dimensions (W x H x D):  416 x 146 x 240 mm (16-3/8" x  5-3/4" x  9-7/16")
Weight (net):  8 kg (17,6 lbs)

Nessun commento:

Posta un commento