Optimus 31-2030 Manual |link| Info

: Engaging EQ Record lets you record the equalized sound to a tape deck while listening to the unmodified source. Frequency Guide :

: Set your receiver's tone controls (Bass/Treble) to their center/flat positions and turn the volume down before powering on the EQ. : Press the button; the SPECTRUM DISPLAY should illuminate. Audio Routing optimus 31-2030 manual

If you hear crackling when moving the sliders, use a dedicated electronic contact cleaner (like DeoxIT). Spray a small amount into the slider slot and move it up and down rapidly. : Engaging EQ Record lets you record the

Adjusts the sensitivity of the sliders. Use 6dB for subtle tuning and 12dB for major acoustic corrections. Calibration and Usage Tips Start Flat: Move all sliders to the center "0" position. optimus 31-2030 manual