Marshall Origin20C 20-watt 1x10" Tube Combo Guitar Amp


93 out of 100. Incorporating 225+ ratings and reviews.

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Marshall Origin20C

The Marshall Origin 20C is a modern take on early Marshall amps like the JTM-45 and the 1959SLP "Plexi".

As such it is a straightforward low to mid gain amp, with 3 ECC83 preamp tubes and 2 EL34 power tubes, driving a 10" Celestion V-Type speaker - all of which work together to reproduce the classic Marshall sound.

Inspired by multi-input classic amps, Marshall added a Tilt control that lets you select between the bright and normal input tone, and blend it to your preference.

Another modern feature of this amp is its built-in power attenuator, which lets you switch between 3 power settings, Low/Mid/High, adding to the overall viability of the amp, be it on a loud stage or for quiet practice.


  • Power Rating: 20W / 3W / 0.5W Switchable
  • Preamp Tube: 3 x ECC83
  • Poweramp Tube: 2 x EL34
  • Speaker: 1 x 10" Celestion V-Type
  • Input: 1 x 1/4" (instrument)
  • Output: 2 x 1/4" (2 x 16 ohm / Single 8 ohm), 1 x 1/4" (DI OUT), 1 x 1/4" (Internal Speaker 16 ohm),
  • Cabinet: Rear Ported
  • Control Knobs: Gain with Pull Boost, Tilt, Bass, Middle, Treble, Master, Presence
  • Weight: 30.6 lbs

Users love how the Origin20c can morph between several different tones spanning decades. This makes it a very versatile amp within the general Marshall tonality. Others also found that the amp is a great pedal platform, taking in different overdrives, distortions, and fuzzes with great results while the effects loop keeps reverbs and delays pristine. Richard Purvis of commends the Origin20C for being "convincing in low power modes" as well as being pleased with its DI output.

It's not a high gain amp and many users who wanted more gain were not satisfied with the amount of vintage gain the Origin20C has. Having a small 10" speaker limits the low-end you can get from this amp. The amp's Tilt knob, affords some sonic flexibility, but it may still be not enough for those who want easy access to different tones in real time.

For great vintage Marshall tone without the Vintage Marshall price, The Origin 20C is a great tonal palette worth exploring if you adore the Marshall "house sound".

This was previously on our recommended list for the Best Tube Amps Under $500 but was removed due to a price increase.

About the Author

Alexander BrionesAlexander Briones

I've written about and researched music gear for many years, while also serving as a music director at my local church, in addition to teaching guitar, bass and mentoring young musicians.