An audio review & news blog. The volume should not exceed 80 dB is recommended. I usually adhere to the safe-listening style by WHO. Please note that my aural impressions and interpretations of measurements are also made from a safe-listening style.
The Technics EAH-AZ40 has a typical V-shaped type sound with deep lows and aggressive highs. The low-frequency quality is quite high and may be an attractive option for low-frequency enthusiasts.