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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





JVC TD-R421


JVC TD-R421BK
Hi-Fi U-turn Quick Auto-Reverse Cassette Deck
Features:
Hi-fi U-Turn quick auto-reverse system with Flip Reverse Head
Computer-controlled full-logic control
Dolby HX-Pro for wider high-frequency dynamic range
Dolby B.C noise reduction systems
Auto rec Mute to create tapes with smooth song-to-song transitions
Auto tape selector for Normal, CrO₂ and Metal tape
Fluorescent digital counter and peak level meters
Headphone output
Balance control
Tape running indicator

Specifications:
Frequency Response  at -20 VU:
Metal Tape :  20 - 17,000 Hz (30 - 16,000 ±3 dB)
SA/Chrome Tape :  20 -16,000 Hz (30 - 15,000 Hz ±3 dB)
Normal Tape :  20 -16,000 Hz (30 - 15,000 Hz ±3 dB)
Signal-to-Noise  Ratio :  58 dB (metal tape)
Wow and Flutter :  0,08% (WRMS)
Crosstalk (1 kHz):  60 dB
Channel Separation (1 kHz):  40 dB
Harmonic Distortion
Totaal (0 VU, 1 kHz):  1,0% (metal)
K3 (0 VU, 1 kHz) :  0,5% (metal)
Heads
Record/Playback:  Metaperm head
Erese :  Two-gap ferrite head
Input Sensitivity/Impedance:  80mV/50 k Ω
Line Out :  300 mV/500 kΩ
Headphones :  0,3 mW/8 Ω (matching impedance 8 - 1 k Ω)
Dimensions (W x H x D):  435 x 115 x 289 mm (17-3/16" x 4-9/16" x 11-7/16")
Weight:  3,8 kg (8,4 lbs)

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