Marshall DSL40CST 40/20-watt 1x12" Tube Combo with Free Celestion Creamback

40-/20-watt 2-channel All-tube 1x12" Guitar Combo Amplifier with Celestion Creamback Speaker, Digital Reverb, and Effects Loop - Black
Marshall DSL40CST 40/20-watt 1x12
Marshall DSL40CST 40/20-watt 1x12
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Marshall DSL40CST 40/20-watt 1x12" Tube Combo with Free Celestion Creamback
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Exclusive — Classic Amp, Upgraded Speaker

Primed for both stage and studio, the Marshall DSL40CST brings you the legendary aggressive tone of the Marshall DSL combo amp and enhances it with a vibrant-sounding 12" Celestion Creamback speaker — and you'll only find it at Sweetwater! You'll be able to dial in everything from delicate, chiming cleans to iconic Marshall leads with dual switchable channels. The amp's 40-/20-watt operation fine-tunes its playing response and volume level. Putting a Celestion speaker in your amp is a great way to upgrade your tone. Get that extra-rich sound right from the start with the Marshall DSL40CST tube combo amplifier.

The DSL Series — a revered tonal heritage

The Marshall DSL40CST hails from a revered lineage. Marshall introduced the JCM2000 Dual Super Lead (DSL) series amps in 1997. Right from the get-go, these all-tube monsters enjoyed enthusiastic approval by guitarists and the press alike. They formed the backlines of top acts in all musical genres and bludgeoned audiences worldwide for a decade. Considered the go-to rock amp by many tone-savvy guitarists, there is considerable demand for Dual Super Leads. Marshall hears you and is proud to offer the improved DSL series.

40-watts of Marshall tone

The Marshall DSL40CST's ECC83 tubes in the preamp section (in concert with the amp's gain/master volume arrangement) give you stunning tone-shaping ability, while the two EL34s in the power section deliver all the power you need. A resonance control lets you dial in your preferred amount of low-end girth. And you'll love the studio-grade digital reverb, the rear-panel pentode/triode switch for running at 20 watts, and the bypassable rear-panel series FX loop. Marshall even included a 2-way footswitch for channel switching and reverb on/off.

Celestion Creamback 12" speaker

The Celestion G12M-65 12" Creamback guitar speaker gives you classic British tone with increased power handling for mid- to high-power amps. In the 1960s, Celestion's original Greenback speakers helped shape generations of guitar tone and became a staple of modern music. With its warmth and distinctive growl, the G12M-65 serves up the essence of British guitar tone, with low-end grunt complementing its warm mids, crunchy upper mids, and sweet highs. If you want definitive Celestion sound, this is the speaker for you.

Two channels and all the trimmings

The Marshall DSL40CST sports two footswitchable channels: classic gain and ultra gain. Each channel boasts two modes: clean/crunch and lead 1/lead 2, respectively. With the DSL40C, you can go from glassy Plexi-esque cleans to JCM800-style snarl, hot-mod 2203, face-melting high gain — and everything in between. To shape this roaring Marshall tone, you'll take advantage of a flexible 5-way EQ (treble, middle, bass, resonance, and presence) with the thoughtful inclusion of a tone shift button. A push of the button and you're in scooped modern metal territory.

Marshall DSL40CST 40-/20-watt All-tube Guitar Combo Amp Features:

  • Custom DSL tube combo amp with upgraded 12" Celestion Creamback speaker
  • Capable of conjuring any classic Marshall sound — past or present
  • 2 channels: classic gain and ultra gain
  • Each channel boasts 2 modes: clean/crunch and lead 1/lead 2, respectively
  • Highly effective resonance control
  • Tone shift button scoops mid frequencies
  • Studio-grade digital reverb
  • Rear-panel pentode/triode switch drops the amp's output to a studio-friendly 20 watts
  • Bypassable rear-panel series FX loop
  • Included 2-way footswitch for channel switching and reverb on/off

Note: Your Marshall DSL40CST amplifier is a custom design for Sweetwater and is fully covered by our Total Confidence Coverage 2-year warranty. No need to contact the manufacturer directly; just call Sweetwater if any issues with your amplifier arise.

Additional Media

Guitar Amp Buying Guide

Tech Specs

Type Tube
Number of Channels 2
Total Power 40W
Speaker Size 12" Celestion G12M Creamback speaker
Reverb Yes
EQ 3-band EQ
Preamp Tubes 4 x ECC83
Power Tubes 2 x EL34
Inputs 1 x 1/4" TS
Outputs 3 x 1/4" TS (2 x 8-ohm, 1 x 16-ohm)
Footswitch I/O Yes
Effects Loop Yes
Height 19.29"
Width 24.45"
Depth 9.92"
Weight 50.48 lbs.
Manufacturer Part Number Custom

Customer Reviews

Based on 105 reviews
Write your review

awesome marshall

I never knew how good a Marshall amp could be they are very good but the DSL 40\20 with the cream back is the best amp I have ever had. For the price it can't be beat. I have been looking for this amp all my life and thanks to sweet water and Sam hillman I have it. Thanks Sam, as usuall great service and knowledge sweet water will continue to get my business, I recommend this amp to anyone who wants a superb amp, Angus young would be proud.


After spending a little time breaking this bad boy in I'm glad I ordered this amp. The upgraded speaker ....NICE! Thanks Sweetwater

Great Little Marshall

I have owned many nice amps including Marshall amps such as the JVM, YJM100, Jubilee, and others. The DSL40CST is all Marshall and it sounds really good at all volumes. I never played through one with the stock speaker, but the Creamback sounds fantastic after a short break in period. Better preamp tubes helped to turn this little thing in to a beast.

Awesome Amp

I love this amp! It is just what I was looking for to fit my budget. It simply blows my solid states away! The clean sound is fantastic and the crunch rocks. It has all the features I want in an amp. The solid states with amp modeling and effects, just never sounded quite right to my ear. This Marshall tube combo really lives up to the hype, and it is worth every penny of the price. I find myself practicing more often now, just for the pleasure of hearing the Marshall bring out the great sound my American Deluxe Plus "Strat", is capable of producing. Sweetwater and Josh, never steer me wrong.

Great amp

I love this amp! I play mostly Clapton bluesy type stuff. I looked back at his early and middle years in his career and he simply used the Marshalls and Fenders. The Fender cleans are hard to beat, but the richness and classic sounds I can get out of this beast are incredible. I own 2 boutique amps that I may now sell because of this Marshall amp. I paid over $2k for each of them. They are excellent amps but were missing something. I just found the missing piece. I paid in the $500 range for this Marshall and couldn't be happier.I play a 2014 Les Paul Custom and it makes this guitar whole.I know a few musicians around the area and I will tell them all.What a deal! I may put a Tone Tubby red alnico speaker in this baby just to see what happens.
Music background: Play guitar as a hobby (sometimes with a friend) in my basement music room
See also: Combo Amps, Marshall, Marshall Guitar Combo Amps