BLUES2020.

Tube clean channel + screamer +1 band extra eq +cold bypass

EQ parametric FREQUENCY, LEVEL.

SCREAMER: GAIN, TONE, VOLUME.

CLEAN: GAIN, BASS, MIDDLE, TREBLE, VOLUME.

TUBE: 12AX7 / ECC83

POWER SUPPLY: 12VDC POSITIVE CENTRE 1A minimum