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Compact silver metal pedal enclosure with black knobs and footswitch

Tech 21

Tech 21 SansAmp Character Plus Mop Top Liverpool live sound amplifier

SKU CH-4BVQ-F6RS5

Analog preamp pedal combining Vox-style amp and Rangemaster booster tones with speaker simulation and XLR output

  • 100% analog pre-amp drives power amps, mixers or PA systems
  • Independent SansAmp and effects sections let you run either alone
  • Rugged all-metal housing at 7.75 x 2.5 x 1.25 inches weighs 12 oz
  • Built-in speaker simulation plus 3-band active EQ and XLR output
  • 9 V DC power supply included for immediate live use

Mop Top Liverpool analog pre-amp

The Tech 21 SansAmp Character Plus Mop Top Liverpool is a 100% analog pre-amp pedal that combines a Vox-style amplifier emulation with a Rangemaster Booster-style effect. Its Character control sweeps through a full spectrum of British Invasion tones, from clean chime to Bohemian rock crunch. The SansAmp and effects sections operate independently, allowing the pre-amp or the boost to be used separately with other gear. A built-in speaker simulation and three-band active EQ are tailored to the specific cabinet voicing.

Stand-alone pre-amp for PA or power amp

This unit replaces a traditional amplifier head when driving a power amp, studio mixer, or PA system directly from the stage or studio. The jump is worth it when a guitarist needs authentic vintage British tones without the weight, maintenance, or volume of a tube amp and cabinet. The independent boost section also replaces a standalone treble booster pedal, reducing pedalboard clutter. It is not for players who require high-gain modern metal voicings or digital modelling with preset storage and MIDI control.

Check signal chain and power needs

Before ordering, verify that your rig can accommodate a pedal-format pre-amp at the end of your effects chain or in an amplifier effects loop. Confirm you have a standard 9 V DC centre-negative power supply available, as the included unit requires mains power. Ensure your mixer, audio interface, or power amp accepts a balanced XLR line-level signal or an unbalanced 1/4" output for the speaker-simulated feed.

Highlights

  • 100% analog pre-amp drives power amps, mixers or PA systems
  • Independent SansAmp and effects sections let you run either alone
  • Rugged all-metal housing at 7.75 x 2.5 x 1.25 inches weighs 12 oz
  • Built-in speaker simulation plus 3-band active EQ and XLR output
  • 9 V DC power supply included for immediate live use

Specifications

No published specifications for this item yet.

Questions about this item

What are the exact dimensions and weight of the Mop Top Liverpool pedal?

The rugged all-metal housing measures 7.75 inches long, 2.5 inches wide, 1.25 inches high and weighs 12 oz.

How do I connect this pedal to a PA system or mixer for live use?

Use the XLR output to run a balanced line directly into a PA system or studio mixer; the built-in speaker simulation is individually tuned for the Vox-style voicing.

Does the 9 V DC power supply come in the box, and what polarity does the pedal require?

Yes, a 9 V DC power supply is included; the pedal operates on standard centre-negative 9 V DC power.

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