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Mad Professor

Mad Professor Old School 51 RT-2x12 51W 2x12 Tube Guitar Combo Amp Black and Beige

SKU #L28790000001000
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$2,399.99 1599.97 $1,599.97 Save $800.02 (33%)
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This stage-ready, modern tube combo beats with an old-school heart.

As the name implies, the Mad Professor Old School 51 RT-2x12 is designed for classic guitar tones, from the '50s to modern times.

You are able to get legendary tones from both sides the Atlantic that suit country, pop, rock, reggae, soul, hard rock, alternative and every other style-name the clever marketing people at record companies come out with.

No need for channel switching as these classic tones from clean to distorted are easy to get by adjusting your guitar’s volume and tone knobs. Coming from a pedal-manufacturing company this amp takes pedals very well.

The amp has built in Reverb and Tremolo for the final old-school touch.


  • 51 watts of classic tones from jazz to hard rock
  • Built in reverb, tremolo and effect loop, EL34 tubes bit fatter sounding than the OS21RT
  • Very good master volume, sounds great with any volume level
  • Unique yet familiar tone, great Fender-type clean and boutique overdrive tones.
  • 4/8/16 Ohm speaker outputs 100/120/230/240V

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Old School 51 RT-2x12 51W 2x12 Tube Guitar Combo Amp Specifications:

  • Power: 51W (tube)
  • Tubes: five 12AX7 (preamp); two EL34 (power amp)
  • Single channel
  • Single input
  • Low/High gain input switch
  • Speaker: 1x12 Jensen Stealth 100
  • Dimensions: 27.95" x 10.25" x 20"
  • Weight: 59 lb.

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Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.

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