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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 SEA-33 equalizer


S.E.A. Stereo Graphic Equalizer, features:
10 frequency equalizer controls per channel
S.E.A. recording and defeat switches
-6db input atenuator to prevent overload distortion
Transistor inductors for expanded dynamic range
Slim, low-profile styling

While every hi-fi system benefits from the addition of a graphic equalizer, not every system can accommodate a large or costly model. That's why we've developed the SEA-33, the slim equalizer that's perfect for popular packaged component systems and compacts.
Yet it has the same advanced features and performance of our larger models - like transistor inductors for lowest possible noise and distortion, ten equalizer controls per channel, and S.E.A. recording and defeat switches.
The ten equalizer controls cover a range from 31,5 Hz to 16 kHz in one-octave steps, giving you the ability to personalize your sound, and compensate for listening room and equipment deficiencies. One popular use of a graphic equalizer is to make equalized tapes for use in prtables and car stereo. The S.E.A. Rec switch gives you this capability.



Specifications
Input Impedance
S.E.A. Input :  47 k
Tape Monitor Input :  47 k
Output Impedance
S.E.A. Output :  100
Tape Rec Output :  100
Rated Output (Freq. EQ Controls at Flat):  2 V RMS
Maximum Output(Freq. EQ Controls at Flat):  7 V RMS
Total Harmonic Distortion:  0,005% (20 Hz - 20 kHz rated output)
Intermodulation Distortion (Freq. EQ Controls at Flat):  0,005%
Gain:  0 dB
Frequency Response:  10 Hz - 50 kHz +0 -2 dB
Signal-to-Noise Ratio :  115 dB
Center Frequencies:  31,5; 63; 125; 250; 50; 1 k; 2 k; 4 k; 8 k; 16 kHz
Control Range:  ±12 dB
Input Attenuator Level:  -6 dB
Dimensions (W x H x D):  435 x 61 x 265 mm
Weight:  3 kg

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