The DSM & Humboldt Simplifier MkII is a Dsm Humboldt Electronics preamp pedal, currently around $296. Close alternatives include the Fender 'Black Panel' Twin Reverb (1963-1967) and the ISP Technologies Theta Preamp Distortion. It pairs well with the Benson Amps Stonk BOX and the Colorsound Power Boost.
DSM & Humboldt Simplifier MkII
Dsm Humboldt Electronics · pedal
The DSM Humboldt Electronics DSM-SIMMKII is the SKU code designation for the Simplifier MKII zero-watt stereo amp and cabinet simulator from DSM and Humboldt Electronics. Delivers second-generation improved preamp and cabinet simulation with three preamp voicings (AC30, Blackface, Plexi) and three cabinet profiles. Four simultaneous outputs, stereo effects loop, headphones out, and aux in. Zero-watt design for direct recording and ampless live performance.
What stands out
“Four simultaneous outputs, stereo effects loop, headphones out, and aux in”
— from the listing
“Zero-watt design for direct recording and ampless live performance”
— from the listing
“Same fixed three preamp and three cabinet options”
— from the reviews
“Delivers second-generation improved preamp and cabinet simulation with three preamp voicings (AC30, Blackface, Plexi) and three cabinet profiles”
— from the listing
“The Simplifier MKII delivers the improved second-generation Simplifier amp and cab simulation in a compact zero-watt DI format with four simultaneous outputs for comprehensive direct PA and recording integration”
— from the community notes
Trade-offs
“the dsm humboldt electronics dsm-simmkii is the sku code designation for the simplifier mkii zero-watt stereo amp and cabinet simulator from dsm and humboldt electronics”
— from the listing
“its standout weakness is the same all-analog simulation limitation relative to digital ir loading”
— from the community notes
- effects loop
- direct recording
- headphone
- stereo
- silent
- practice
- xlr
Good for
- Live
- Silent Recording
- Silent Stage
- Studio
Price updated Oct 24, 2026
Genres the DSM & Humboldt Simplifier MkII is commonly used in
- Electronic
- Acoustic
cited
Inferred from shared tonal signals, not a stated genre tag.
Pedals that stack with the DSM & Humboldt Simplifier MkII
Benson Amps Stonk BOX
Benson Amps
7% matchBenson Amps Stonk BOX leans toward germanium, and that's a real, usable character to pair with
Comes earlier in the signal chain
Colorsound Power Boost
Colorsound
7% matchColorsound Power Boost's own bright character is the real reason this is worth trying
Comes earlier in the signal chain
Caroline Guitar Company Somersault
Caroline Guitar Company
6% matchPut Caroline Guitar Company Somersault after DSM & Humboldt Simplifier MkII in the signal chain, clear of DSM & Humboldt Simplifier MkII's own gain stage
Comes earlier in the signal chain
Ashdown Studio Compressor
Ashdown
6% matchAshdown Studio Compressor's own compressed character is the real reason this is worth trying
Comes earlier in the signal chain
Carl Martin Headroom
Carl Martin
4% matchPut Carl Martin Headroom after DSM & Humboldt Simplifier MkII in the signal chain, clear of DSM & Humboldt Simplifier MkII's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Catalinbread Belle Epoch
Catalinbread
4% matchKeep DSM & Humboldt Simplifier MkII's full voice out front: Catalinbread Belle Epoch goes after DSM & Humboldt Simplifier MkII in the signal chain so its analog warmth voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Abasi Pathos Distortion
Abasi
tonal matchComes earlier in the signal chain
Into DSM & Humboldt Simplifier MkII, Abasi Pathos Distortion is right at home: it's built around a clean amp's front end
Alexander Pedals Jubilee Silver Overdrive
Alexander Pedals
tonal matchComes earlier in the signal chain
Alexander Pedals Jubilee Silver Overdrive's own voicing points at Marshall-style amps, and DSM & Humboldt Simplifier MkII delivers it
Cheaper alternatives
Boss TM-7
Boss
59% similarityShared character: effects loop, stereo, practice
Boss IR-2 Amp
Boss
58% similarityShared character: effects loop, stereo, signal chain
Palmer Pocket AMP MK2
Palmer
52% similarityShared character: practice, digital
Mooer Radar Simulador de altavoz
Mooer
49% similarityShared character: practice
Ibanez Pentatone Preamp
Ibanez
48% similaritySimilar role and voicing
Mooer Baby Bomb 30
Mooer
47% similarityShared character: practice
Boutique & premium upgrades
Marshall JCM800 2203
Marshall
72% similarityAn amp-in-a-box take on Marshall JCM800 2203's tone
Vox AC30 Guitar Combo Amp
Vox
72% similarityAn amp-in-a-box take on Vox AC30 Guitar Combo Amp's tone
Marshall JCM 2000 DSL 100 Dual Super Lead 2-Channel
Marshall
72% similarityAn amp-in-a-box take on Marshall JCM 2000 DSL 100 Dual Super Lead 2-Channel's tone
Walrus Audio Mako ACS1 MKII
Walrus Audio
53% similarityShared character: stereo, practice
Friedman IR-X
Friedman
50% similarityShared character: signal chain, digital
Similar charactersee all similar tone character →
Fender 'Black Panel' Twin Reverb (1963-1967)
Fender
72% similarityAn amp-in-a-box take on Fender 'Black Panel' Twin Reverb (1963-1967)'s tone
ISP Technologies Theta Preamp Distortion
Isp Technologies
55% similarityShared character: practice
Palmer Pocket Amp MKII Portable
Palmer
49% similarityShared character: practice
EarthQuaker Devices Zeqd
EarthQuaker Devices
47% similaritySimilar role and voicing
T Lab Custom Audio RE-150 Preamp
T Lab Custom Audio
45% similarityShared character: full
DSM & Humboldt Electronics Simplifier DLX
Dsm Humboldt Electronics
97% similaritysimilar tone character
See all alternatives to the DSM & Humboldt Simplifier MkII (cheaper + boutique) →
Questions people ask
What are good alternatives to the DSM & Humboldt Simplifier MkII?+
The closest matches in character are the Fender 'Black Panel' Twin Reverb (1963-1967), the ISP Technologies Theta Preamp Distortion, the Palmer Pocket Amp MKII Portable. Budget picks: Boss TM-7, Boss IR-2 Amp, Palmer Pocket AMP MK2. Boutique upgrades: Marshall JCM800 2203, Vox AC30 Guitar Combo Amp, Marshall JCM 2000 DSL 100 Dual Super Lead 2-Channel.
What pairs well with the DSM & Humboldt Simplifier MkII?+
Strong matches from rig and tone-complementarity evidence: Benson Amps Stonk BOX, Colorsound Power Boost, Caroline Guitar Company Somersault — Benson Amps Stonk BOX leans toward germanium, and that's a real, usable character to pair with.
How much does the DSM & Humboldt Simplifier MkII cost?+
Around $296 (live listing price, updated Oct 24, 2026).
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