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General| Number of Channels | 2 |
|---|---|
| Filter Type | Constant-Q |
| Signal-to-Noise Ratio | > 90dB |
| Type | Stereo |
| Frequency Range | 20 Hz to 20 kHz |
| Gain Range | ±12dB |
| Boost/Cut Range | ±12dB |
Details on EQ adjustment ranges, tuning, and bandwidth for each band.
Guidance on input/output connections and grounding procedures for system integration.
How to adjust the TUNING and BANDWIDTH controls for desired equalization effects.
Using the 622 for house tuning, notch filtering, stage monitors, and driver equalization.
Bench tests to verify normal operation, including power supply and signal processing checks.
Tests for distortion, noise, and frequency response of the signal processing circuits.
Procedures for testing and aligning HF, MHF, MLF, and LF equalizer bands.
Techniques for safely removing and replacing components on PC boards without damage.
Methods for diagnosing and testing IC opamp failures and common troubleshooting steps.
Details on the HF equalizer stage, resonator operation, and control functions.
Description of the power supply components, voltage regulation, and protection circuitry.
Principles of audio system grounding, circuit vs. chassis ground, and common mode rejection.
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