SKU: 79402222515

Marshall Studio Series JTM ST20C 20-Watt 1x12" Tube Combo Guitar Amplifier

Sale price$720.00 Regular price$800.00
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Description

Marshall Studio Series JTM ST20C 20-Watt 1x12" Tube Combo Guitar AmplifierThe Marshall Studio Series JTM ST20C 1x12" Tube Combo Amp marks a striking addition to Marshall's celebrated Studio series. This amp reincarnates the very first Marshall amp, the one that came even before the iconic 1959SLP, now presented in a more compact, manageable 20W format. Despite its scaled down structure, there's no sacrifice to the classic Marshall tone, delivering its legendary sound to the discerning musicians of today. When it comes to

The Marshall Studio Series JTM ST20C 1x12" Tube Combo Amp marks a striking addition to Marshall's celebrated Studio series. This amp reincarnates the very first Marshall amp, the one that came even before the iconic 1959SLP, now presented in a more compact, manageable 20W format. Despite its scaled-down structure, there's no sacrifice to the classic Marshall tone, delivering its legendary sound to the discerning musicians of today.

When it comes to the Marshall JTM amp, “portability” is not a commonly associated word, but that issue is non-existent with the Studio Series, and especially so with the JTM Studio 1x12 combo. Weighing in at a mere 39lbs, and carrying a modest 20” footprint, the small stage is no challenge for this Marshall, nor does it lack the classic JTM sound.

The combo is loaded with the popular Celestion G12M-65 Creamback speaker. This 12” driver takes flavoring from Celestion’s legendary G12M “Greenback” speaker, but with a higher power handling rated at 65w. This is the first combo in the Studio Series to feature a Celestion Creamback speaker, and second to the 2525C Jubilee amplifier to house a 12” driver.

As for the amplifier itself, the Studio Series JTM Combo features the same controls layout as the Studio JTM head: Two independent channels - High Treble and Normal - sharing a three band EQ and master Presence control, low and high inputs for each channel, and 20w/5w output power options selectable by way of the amp’s standby switch.

The ST20C combo also features 4-, 8-, and 16-Ohm speaker outputs, effects loop send and return with bypass switch, and a 1/4” DI out perfect for reamping in the studio or running direct to a speaker simulator or cabinet IR.

For a vintage voiced, all-tube combo amplifier that delivers classic Marshall tone and fits in your trunk or back seat, look to the Marshall ST20C JTM Studio series combo.

Shop More Amplifiers:

  • Part of Marshall's Celebrated Studio Series
  • Reincarnation of First Marshall Amp
  • Compact 20W Format
  • Tube-Driven Combo for Classic Sound
  • Scaled-Down Structure, Full-Scale Tone
  • Delivers Legendary Tone to Modern Players
  • User-Friendly Controls
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 79402222515

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Amazon Customer
Birmingham, US
★★★★★ 5
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Love the necklace - special present from my husband after our baby was born. It was reasonably inexpensive but you wouldn’t be able to tell that when you see it. Mine broke after a month which is not normal. I emailed not expecting a response back….. I not only got a response but they offered to replace mine. Very happy I can wear it again!
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Reviewed in the United States on August 12, 2023
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Shannon Merz
Omaha, US
★★★★★ 5
Adorable. Good quality
very cute. I wear it with everything
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Reviewed in the United States on April 7, 2025
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Kristopher
Bozeman, US
★★★★★ 5
Repeat Customer
I absolutely love this necklace. I ordered one for myself and then ordered several more for friends and family. The 16” is a great choice because there’s an option to make it longer. The product is exactly as pictured. It also ships very quickly. Excellent value for custom jewelry.
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Reviewed in the United States on November 10, 2024
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Charlotte S.
San Leandro, US
★★★★★ 5
Looks great and beautiful shine
This is a beautiful piece I love it
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Reviewed in the United States on March 18, 2026
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Rene
Los Angeles, US
★★★★★ 5
Beautiful bracelet
It’s beautiful
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Reviewed in the United States on March 7, 2026

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