Marshall Amps M-SC20C-U 20W Valve 1x10 JCM800 Combo Amp

$ 1,949.99

Marshall Amps M-SC20C-U 20W Valve 1x10 JCM800 Combo Amp  

Legendary rock status is yours for the taking with the Studio Classic combo. For those looking for the distinctive JCM800 bite at lower volumes, we’ve packed the tone of the JCM800 series into a portable 20W combo. With the option to reduce the power down to 5W, you can own that genre defining hard rock sound in the comfort of your own home.


Don’t be fooled by its simplicity, the SC20C delivers an abundance of tone. The single channel takes your tone from warm cleans to gritty overdrive with its high and low sensitivity inputs. If it’s gain you’re after, then crank up the preamp volume control and go from clean to crunch on the low sensitivity input, or gritty breakup to barky overdrive using the high sensitivity input.

The Studio Classic wouldn’t be complete without a master volume control, the feature that helped to make the original JCM800 amplifiers so famous. There’s also an effects loop for adding more variety, just as there is on the 2203.

Instantly switch between 20W and 5W power output to achieve huge tone at home, studio or stage.

Made in the very same factory as the JCM800s. The familiar tone is driven by two ECC83 preamp valves, an ECC83 phase splitter and two EL34 valves in the power amp.

An iconic rig scaled down. We’ve selected a 10” Celestion V-type speaker for convenient portability without compromising on tone.



  • Model:  SC20C
  • Range:  Studio


  • Output wattage:  20W (with power reduction option to 5W)
  • Outputs:  5 x 1/4” jack sockets, selectable 16Ω / 8Ω / 4Ω load
  • Inputs:  2 x 1/4" jack instrument inputs (high/low sensitivity)
  • Controls:  Presence, bass, middle, treble, master volume, preamp volume
  • Effects:  None
  • Effects loop:  Yes, series, send/return


  • Speaker configuration:  1x10"
  • Speaker model:  Celestion V-type 10” (16Ω, 50W)
  • Unit impedance:  16Ω


  • Preamp valves:  2 x ECC83, 1 x ECC83 (phase splitter)
  • Power amp valves:  2 x EL34


  • Cable:  Detachable power cable included


  • Weight:  14.55 kg / 32 lbs
  • Width:  510mm / 20.1"
  • Height:  460mm / 18.1"0
  • Depth:  255mm / 10"
Shipping Information

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Return Policy
Return Policy

New Items:

We honor a 14 day return window on all new items.

If you feel the need to return an item, it must be in the sellable condition, no paint chips, scratches or broken parts. Sellable Condition means that the product(s) is in exactly the same condition as it was when you received it. The item must have all the original packaging, included accessories owner’s manuals and blank warranty card, no sign of wear or abuse.

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We honor a 3 day return window on all used and vintage items.

All our used gear is tested for functionality prior to being available for purchase and therefore only carries a 3 day approval period. If you would like to make a return just let us know within the 3 day window.

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We visually inspect all items before shipment. If you believe you have received a damaged or defective product, please contact us immediately so we can work through the issue. Guitars, basses, and other equipment returned to us with pick marks, "buckle-rash", or any other damage or evidence of use may be subject to a 20% restocking fee, repair charge or disqualification of return. All items must be returned to us in the same condition they were when shipped to qualify. We reserve the right to refuse any return if we determine the item has been misused, modified or damaged by the purchaser. If the item turns out not to be defective upon inspection, we will have to deduct the cost of shipping from your return credit.

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You will be responsible for the shipping charge for the return of your item, and if your item qualifies for Free shipping on its way to you, this shipping charge will also be deducted from your refund. If your item is determined to be defective, we will pay the shipping charge, equivalent to ground service.

Vendor: Marshall Amps
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