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Range of Settings with CHAR A:
• Below 12 o’clock serves up the tone of a Top Boost with controls set to 9:00, for a throatier clean sound and warm overdriven tones.  
• Advancing towards 12 o’clock brings in classic British mids.
• Passing 12 o’clock increases clarity to crunchy and overdriven tones.
• Full up adds the upper mid crackle of pushed Alnico speakers.

Range of Settings with CHAR?B:
• Below 12 o’clock serves up the tone of a Top Boost with controls set to 3:00, for full clean sound with lots of bass and highs.  
• Advancing towards 12 o’clock brings in classic British mids.
• Passing 12 o’clock brings in the vocal quality of “Woman Tone.”
• Full up boosts the low mids for non-Top Boost AC30-style tone.

Independent Boost Section:

BOOST
The Mop Top Liverpool uniquely offers 2 boosts in one knob: 
• At 12 o’clock, it’s flat.
• Up to 12dB Treble Boost when you turn clockwise for a brighter, louder, edgier ‘60s and ‘70s vintage vibe.
• Up to 12dB Mid-Range Boost when you turn counter-clockwise, which tightens up distortion, rhythm and lead tones for more modern vibes.