Mad Professor Loud ‘n Proud


Order now and this pedal will be sent on 27 October!

Mad Professor Loud ‘n Proud is a vintage 4-input Marshall in a box. It’s a compact pedal with a complete amp signal path replicated inside. Not only the preamp but also the power amp containing phase inverter, push-pull stage, and output transformer simulation. This internal structure makes the pedal not only sound but also behave like a real amp.

The pedal has a moderate amount of gain. This is what led us to adding a boost/fuzz to this medium gain overdrive circuit. The pre boost has the capability of pushing 13dB, which adds a nice amount of gain to the pedal. It also thickens the midrange a bit. The fuzz is designed to work like a vintage germanium fuzz. By engaging the fuzz you can find a great variety of tones from a clean tone to a thick and warm fuzzy tones just by rolling the guitar volume. 

You will also find a switch for two different character voicings: tighter bass and slightly compressed tone on the left with a looser bass including maximum dynamics on the right. If you love the vintage Marshall amp tone, you will also love this pedal. It’s the real deal for those who dare!

Mad Professor Loud ‘n Proud demo video

SKU: 6430033091401 Category:


  • Effect: Amp in a Box (Vintage Marshall)
  • Design: Analog
  • Mono/Stereo: Mono In, Mono Out
  • Knobs: Bass, Middle, Treble, Gain, Volume, Presence, Fuzz Vol, Boost Fuzz
  • Switches: Fuzz/Boost, Character
  • Bypass Mode: True Bypass
  • Power Supply: 9V  DC, center negative
  • Power Consumption: 27 mA
  • Works on batteries: Yes
  • Type of Battery: 9 volt
  • Format: Medium
  • Made in: FIN

Additional information

Weight 0.5 kg
Dimensions 9.5 × 12 × 5.3 cm



Mad Professor




Amp in a Box


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