DSM Humboldt Simplifier MK-II Zero Watt Stereo Amplifier

The perfect back-up amp that easily fits in your accessory case, DSM Humboldt's Simplifier MK-II offers players an unreal level of realism in a tiny package.

The DSM Simplifier MK-II takes the analog amp simulation to a deeper stage of realism. Much more options, while keeping the instant touch and dynamics that only an all analog device can manage.

All...in the same ultra compact footprint.

Listen as DSM Humboldt's Engineering Director Daniel Schwartz takes a deep dive into the Simplifier MK-II:

A continuous quest
Shortly after DSM unveiled the Simplifier Classic in September 2019, several other brands came up with very similar products; Nevertheless, the Simplifier sound held strongly, earning an amazing recognition great sales, reviews and powerful end users experiences. So, what made us stand out from the rest? As DSM's CTO Daniel Schwartz once said: DSM took the right choices.

With hard work, DSM decided to improve every aspect of the product and keep all the good things that made it so popular, to push it beyond being a pedal platform and mirroring the most realistic and versatile analog amp simulator till today.


Pre-Amps to the limit
- Completely redesigned preamps with wider gain options
- AC BRIT Preamp minimizes the MID Control range resulting on a more accurate historic behavior, like a VOX AC-30 64' Top Boost channel.
- American (USA) Preamp is now based on a true classic: The Bassman 59'
- MS Brit performs a high level of gain, just like a hot-rodded Marshall Plexi.

The Power Amp
- A Dedicated power amp drive allows you to dial the perfect amount of power amp compression for that sweet- spot that read more only a tube amp can achieve. This controls sets a deeper level of realism engineered only by DSM Humboldt.
- The POWER AMP is a highly detailed reproduction of a Class A/B power stage, including the phase inverter. Each power type reconfigure the feedback path, PI gain and the effect of the power transformer on the power tubes.
- A Clip indicator shows when the emulated power tubes are clipping, helping you to find the desired sweet spot between power drive and preamp drive, as it would be on an actual tube amplifier.
- In combination with the MASTER VOLUME, you can get any amount of pre and power amp drive at any volume level.

The Master section
- MASTER VOLUME allows you to set any amount of pre and power amp drive at any volume level, avoiding unwanted FX-LOOP distortion.
- Re-designed PRESENCE Control within the power amp feedback. Clockwise it boosts the mid-highs like Marshall and Fender. Counterclockwise it cuts the Highs like a VOX amp.
- Re-designed RESONANCE Control that allows you to set the low-end thump according to your PA system.

Stereo Cabsim
- After a comprehensive research based on hundreds of response curves from the most renown speakers in the market, DSM completely redesigned the Cabsim section, replacing the MIC position control for a more useful yet intuitive three profile speakers control:
BLACK: Based on the V30 Speaker
BLUE: Based on the Blue Alnico Speaker
GREEN: Based on the G12 Greenback Speaker
- Three Classic Cab types:
COMBO (1x12" Blackface style Cab)
TWIN (2x12" AC Style Cab)
STACK (4x12" 1960 Style Cab)

A Built-In Reverb
According to many users, one of the most desired features on the OG Simplifier was a built in reverb, or at least a room control.
This is why, DSM heard this call by loading this Simplifier with a side-chained digital PLATE reverb.

Updated enclosure
With a redesigned layout for an easy understanding and connectivity, will help you to keep your Simplifier as your pedalboard brain, better than ever.
Also DSM included a heavy-duty all aluminium enclosure, with all metal switches for maximum endurance.
WARNING: Cancer and Reproductive Harm - www.p65Warnings.ca.gov.
read less

- Weight: 360 grs (0,8 lb)
- Dimensions: 120 x 70 x 45 mm (4,7 x 2,7 x 1,8 inches)
- Power supply requirements:
- Voltage: 9 to 12V DC regulated
- Connector: 2.1mm
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 0.9 lbs
Shipping Dimensions: 6 x 4 x 3 in
Manufacturer Part Number (MPN): DSM-SIMMKII

For support or warranty questions, please contact the manufacturer:
Phone: +56-9-7766-6513
Email: support@dsmhumboldt.com
Web: https://www.simplifieramp.com/

Reviewers gave this product an overall rating of 5 out of 5 stars. (1 ratings)
Submitted June 10, 2023 by a customer from att.net

"Holy Cow!"

Overall: 5 out of 5 stars
(see rating details)
Verified Customer zZounds has verified that this reviewer made a purchase from us.
I don’t know what to say except I’m blown away. This little box has a H U G E and F A T sound that makes me shake my head. I own numerous pedals plus a Tonex, Helix, AXE-FX II and Kemper and this fierce beast beats them all. It even had a FX loop which leaves me jaw dropped considering how tiny it is. I don’t know what kind of magic DSM Humboldt has in their arsenal but it’s very impressive. Buy this and you will not regret it. Just WOW
7 of 8 people (88%) people found this review helpful. Did you?
Thanks for your opinion!


  • 3 x  
FREE -Day Shipping!
Get it  for
Get it by if you order within
Shipping to