Bass Midrange Treble Audio Control Board with Volume and Left Right Balance

DIY Audio Control Board with Bass Midrange Treble Volume and Tone Adjustment

Multi Frequency EQ Equalizer Board for Professional Audio Applications

Professional EQ Equalizer Board for Audio Systems with Dual Power Output

Stage Audio EQ Board with 10 Way Adjustable Frequencies and Power Supply

Professional Audio Equalizer Board for Enhanced Sound Quality and Performance

EQ Equalizer Board Stereo Preamplifier Power Supply with Adjustable Frequencies

Stage Audio EQ Board with 10 Way Frequency Adjustment and Power Supply