Final answer:
Using a dual-channel FFT analyzer offers better precision in audio signal analysis, simultaneous comparison of two channels, and enhanced diagnostics for audio systems and room acoustics.
Step-by-step explanation:
The advantages of using a dual-channel FFT analyzer to adjust equalization include improved precision in signal analysis, the ability to compare two different audio sources or channels simultaneously for phase and coherence analysis, and enhanced capability for diagnosing audio system issues or room acoustics. A dual-channel FFT analyzer allows for real-time frequency spectrum analysis of audio signals, which can be essential for precise equalization in audio engineering and sound system calibration.