Mad Professor OS51 RTH Old School

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DKK 12995

Woodstock Guitars

One channel, 51 watts of touch sensitive old school tones.

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.


  • Preamp tubes: 5 x ECC83/12AX7
  • Poweramp tubes 2 x EL34
  • Output power 51 Watts
  • Low/High gain input switch
  • Universal power supply easily switchable between 100-120VAC/220-240VAC
  • Power consumption Max 100 VA
  • Dimensions: (W*D*H): 61 x 26 x 28 cm / 24” x 10,25” x 11”
  • Weight: 17,5 kg / 30 lbs / 38 lb 9 oz
Watch a demo of the head version here:

Mere fedt gear: