This stereo LED level indicator enables real-time display of the audio signal amplitude across two independent channels, using two LED bars composed of 5 LEDs each (one of which remains constantly on). The LED activation thresholds are fixed and correspond to specific input voltage values, providing immediate visual feedback of the signal intensity expressed in decibels (dB).

The input sensitivity is adjustable via a trimmer, making the module compatible with a wide range of audio sources such as power amplifiers, preamplifiers, or line-level audio devices. The low power consumption (approximately 65 mA with all LEDs fully active) makes it ideal for integration into custom audio systems, fixed installations, or educational projects.

Soldering is required for assembly. The kit comes with assembly instructions in English.

• Power supply: dual ±12V DC
• Monitored channels: 2 (stereo)
• LEDs per channel: 5 (including 1 always-on LED)
• LED activation thresholds per channel:
  LED 1 (green): 0.2 V (approx. -10 dB)
  LED 2 (green): 0.6 V (approx. -5 dB)
  LED 3 (yellow): 1.9 V (approx. 0 dB)
  LED 4 (red): 3.8 V (approx. +3.2 dB)
• Sensitivity adjustment: via trimmer
• Maximum current consumption: approx. 65 mA (with all LEDs on)
• Compatibility: power amplifiers, mixers, preamplifiers, consumer and professional audio devices
• Mounting: suitable for panel mounting or integration into custom projects