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General| Type | Graphic Equalizer |
|---|---|
| Channels | 2 |
| Frequency Bands | 10 |
| Frequency Range | 20 Hz - 20 kHz |
| Total Harmonic Distortion | 0.05% |
| Output Impedance | 1k ohms |
| Power Supply | AC 120V, 60Hz |
| Signal to Noise Ratio | 90 dB |
| Control Range | +/- 12dB |
| Input Impedance | 47 kΩ |
Overview of the product and manual's purpose, appreciating customer choice.
Instructions for unpacking, checking the unit, and recording serial numbers for future reference.
How to select the AC voltage and specific instructions for USA, Canada, and UK power requirements.
Important warnings and cautions to prevent electrical shock and ensure safe operation of the unit.
Guidelines for installing and placing the unit in its environment, considering sunlight, heat, and humidity.
Instructions on how to clean the unit's cabinet safely and effectively using appropriate materials.
Further safety advice regarding handling the unit, its components, and keeping it away from children.
Detailed instructions on connecting the graphic equalizer to an amplifier using tape or adaptor jacks.
Instructions for connecting one or two tape decks to the equalizer for recording or dubbing.
Information about the unit's AC outlet for powering other devices, noting it's not controlled by the power switch.
Explanation of the power switch, attenuator, reverse switch, line output, and level controls.
Details on input selector, record signal selector, and their associated indicators for signal routing.
Explanation of equalizer controls, EQ effect switch, and spectrum analyzer switches for frequency adjustment.
Descriptions of the record signal indicator, equalizer switch indicator, spectrum analyzer indicator, and input indicator.
Steps to listen to the amplifier's program source with equalization applied.
Steps to listen to tape playback sound with equalization applied.
Steps to listen to tape playback sound without applying equalization.
Procedure for recording the amplifier program source with equalization applied.
Procedure for recording the amplifier program source without equalization.
Steps to dub playback signal from one tape deck to another with equalization applied.
Steps to dub playback signal from one tape deck to another without equalization.
Controls for low bass frequencies, affecting instruments like bass drums and pipe organs.
Controls for mid-bass frequencies, often related to listening room resonance.
Controls for the mid-bass range, which forms the basis of music and affects sound richness.
Controls for the mid-range, affecting vocal presence and emphasis.
Controls for mid-high frequencies, related to stimulating and metallic sounds.
Controls for high frequencies, related to the hardness of sound and instruments like strings and brass.
Controls for super high frequencies, related to musical details like cymbals and echoes.
Explanation of how the spectrum analyzer indicates frequency levels of the program source.
Guide to analyzing room acoustics using a microphone, pink noise generator, and the spectrum analyzer.
A guide to diagnosing and resolving common problems encountered with the unit.
Detailed technical specifications for the GE-770 equalizer and spectrum analyzer sections.
