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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





Onkyo TA-2020


Slim Vertical-Hold Stereo Cassette Deck with ACCUBIAS and Metal Tape Handling Capability.

TA-2020 get more out of Metal tape recording with Accubias Control
Metal Bias and EQ Tape Selector
Specially processed Hard permalloy Head
Double-Gap Laminated Core Ferrite Erase head
Servo-Controlled DC Motor for low Wow and Flutter
Large VU Meters
Dolby Noise reduction Circuity with MPX Filter
Independent left and Right Channel Input Level Controls
Microphone jacks for Live Stereo Recording
Timer Start/pause Button for unassisted recording and Playback
Recording and Dolby NR indicator LEDs

Specifications
Track Format:  4-tracks, 2 channel
Erase System:  AC erase
Tape Speed:  4,5 cm/sec
Fast Forward and rewind Time:  90 sec (C-60)
Wow and Flutter:  0,06% (WRMS)
Frequency Response:
Metal Tape :  20 - 16,000 Hz (30 - 15,000 Hz ±3 dB)
High Position Tape :  20 - 16,000 Hz (30 - 15,000 Hz ±3 dB)
Normal Position Tape :  20 -15,000 Hz (30 - 14,000 Hz ±3 dB)
Signal-to-Noise Ratio:  60 dB (Metal tape, Dolby NR Ot)
Input Terminals:
Microphone Jack :  2
Minimum Input Level :  0,3 mV/ 600 Ω
Input Impedance:  5 k Ω
Line In :  2 jacks
Minimum Input Level :  50 mV
Input Impedance :  50 k Ω
Output Terminals
Line Out :  2 Jacks
Standard Output Level :  350 mV (0 VU)
Optimum Level Impedance:  more than 50 k Ω
Headphone : 1
Optimum Impedance :  8 / 200 Ω
Motor :  DC servo motor
Heads:  Rec/Pb Head :  hard permalloy head
Erase head :  ferrite head
Controls:  Tape selectors; Metal/ High/ Normal ACCUBIAS controls; input level Controls, left and Right
Power Supply:  AC 120, 220, 240 V; 50/60 Hz
Power Consumption:  13 watts
Semiconductors:  3 ICs, 16 Transistors; 17 Diodes; 2 LEDs; 5 SCRs
Dimensions (W x H x D):  418 x 120 x 270 mm (16-1/2" x 4-3/4" x 10-5/8")
Weight:  4,8 kg (10,6 lbs)


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