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 SR-320L

 SR-320 AM/FM Stereo Receiver (1982).
Flywheel tuning system with LED tuning indicators. Bass and treble tone controls. Low filter (50 Hz  - 6 dB/oct). Tape copy 2 to 1 with ape monitor 1. speaker switching between system 1 and 2. low Transient Intermodulation Distortion (TIM) design to eliminate  intermodulation distortion.  Pilot canceller for clean FM reception.
The SR-320 is also available with long waves as SR-320L
Specifications
Amplifier Section
Power Rated Output  per Channel:
RMS 1 kHz at 8 Ω :  30 W
RMS 1 kHz at 4 Ω :  33 W
Dynamic Power (IHF)
At 8 Ω :  35 W
At 4 Ω :  55 W
Total Harmonic Distortion (RMS at 8 Ω):  0,05%
Damping Factor (1 kHz, 8 Ω):  50
Frequency Response:
Phono :  RIAA standard ±2 dB
Aux :  16 - 30,000 Hz ±1 dB
Signal-to-Noise Ratio:
Phono  :  85 dB
Input Sensitivity/Impedance:
Phono :  2,8 mV/47 k Ω
Aux :  160 mV/25 k Ω
FM Tuner Section
Frequency Range:  87,5 - 108 MHz
Sensitivity:
DIN Mono (S/N 26 dB - 300 Ω) :  2,2 µV
DIN Stereo (S/N 46 dB - 300 Ω) :  80 µV
Selectivity Adjacent Channel 98 MHz DIN:  60 dB
Signal-to-Noise Ratio 98 MHz : 
Unweighted [Mono/Stereo] :  70 dB / 60 dB
Weighted [Mono / Stereo] :  75 dB / 62 dB
MW Tuner Section
Frequency Range :  525 - 1605 kHz
Sensitivity (20 dB S/N 30% mod. 1 MHz):  30 µV
Selectivity:  30 dB
LW Tuner Section
Frequency Range :  150 - 350 kHz
Sensitivity (20 dB S/N 30%, 250 kHz):  200 µV
Power Requirements:  110/120/220/240 V, 50/60 Hz
Dimensions (W x Hx D):  416 x 100 x 190 mm

Weight:  5,2 kg

Nessun commento:

Posta un commento