Mad Professor Old School 21RT
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Mad Professor Old School 21RT

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Old School 21RT, Tube Combo Guitar Amp from Mad Professor.


1 user review

Mad Professor Old School 21RT tech. sheet

  • Manufacturer:Mad Professor
  • Model:Old School 21RT
  • Category:Tube Combo Guitar Amps
  • Added in our database on: 01/10/2014

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Mad Professor Old School 21RT user reviews

Average Score:5.0(5/5 based on 1 review)
 1 user review100 %
Audience: Value For Money :
EFD06/20/2019

EFD's review"Old school sounds...Effectivelly"

Mad Professor Old School 21RT
This vintage sounding amp, fully handcrafted in England and conceptualized in Finland, has the following features:
- Preamp tubes: 4 x ECC83/12AX7
- Poweramp tubes: 2 x 6V6
- Power: 21 Watts
- Power supply: Max 100 VA
- Combo Speaker: 12" 8 ohms, creamback 65W celestion
- Combo dimensions: 61 x 26 x 50.5 cm / Head: 61 x 26 x 27.6 cm
- Weight: Combo 22.6 kg
The cabinet is entirely made of solid Scandinavian birch wood.

A superb and very crystalline clean up to about half of the gain stroke, after which it starts to crunch slightly depending on the feel of the strings. The master volume potentiometer allows you to make it crunching or bring it up to a large overdrive even at low volume.
Usual settings in terms of eq but with in addition a cut filter (low-pass filter) which allows to attenuate or cut very high frequencies undesirable during a crunch for example but sought in its own right.
The reverb and tremolo are superb.
This amp sounds a lot like a vox ac30.
It is rather intended, as its name suggests to lovers of any musical style, except metal.

This amp really takes up the main characteristics of the old traditional mythical amps without being a faithful copy (deluxe reverb, ac30, plexi) and therefore does not have an effects loop. It will satisfy lovers of old sound, both in clean and crunch and/or overdrive.

Translated with www.DeepL.com/Translator
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Mad Professor Old School 21RT news

[NAMM] New version of the Old School 21 combo

[NAMM] New version of the Old School 21 combo

Published on 01/10/14
Mad Professor will soon release a new version of its Old School 21 guitar combo.

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Other names: oldschool 21rt, oldschool21rt, old school 21 rt, oldschool21 rt, old school21rt

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