The original DSM & Humboldt Simplifier revolutionized the "ampless" world, but the MK-II takes that realism to a deeper stage. This is a 100% analog signal path designed for the guitarist who has grown tired of the "stiff" feeling of digital modelers. By completely redesigning the preamps and adding a dedicated Power Amp Drive, DSM & Humboldt have achieved the "sweet spot" compression that—until now—was only possible with glowing glass tubes.

• Redesigned Preamps: Wider gain options across three iconic flavors (USA, AC Brit, and MS Brit), meticulously tuned to behave like their historical inspirations.

• New Power Amp Simulation: Features a dedicated "Power Drive" control. This mimics the phase inverter and power transformer's effect on the tubes, allowing you to dial in everything from "Linear" headroom to "Distorted" power-section sag.

• Side-Chained Digital Reverb: You asked, they listened. The MK-II includes a lush, built-in Plate Reverb that is side-chained, meaning your dry signal stays 100% analog while sitting in a beautiful, natural space.

The MK-II offers three distinct preamp personalities at the flick of a switch:

1. USA (American): Based on the '59 Bassman. Expect thick lows, a "quacky" midrange, and legendary headroom that roars when pushed.

2. AC BRIT (British Chime): Based on the '64 AC30 Top Boost. It captures that historic "twinkle" and the emotive verge-of-breakup grind that defined the British Invasion.

3. MS BRIT (Classic Plexi): The "Glassy Gain" machine. Based on the vintage Plexiglas-paneled stacks, offering that mid-forward growl and punch.

• Circuitry: 100% Analog Preamp, Power Amp, and Cab Sim.

• Amp Voicings: 3 Engines (USA, AC Brit, MS Brit).

• Power Amp Sim: 3 Tube Types (6L6, EL34, KT88) with dedicated Power Drive and Master Volume.

• Tone Shaping: 3-band EQ plus redesigned Presence and Resonance controls to match any PA or studio monitor.

• Cabinet Simulation: * 3 Cab Types: Combo (1x12"), Twin (2x12"), Stack (4x12").

  • 3 Speaker Colors: Black (V30 style), Blue (Alnico Blue style), Green (G12 Greenback style).

• Connectivity:

  • Inputs: 1/4" Mono In, Stereo TRS Returns, 1/8" Aux In.

  • Outputs: Dual XLR Balanced Outs (Direct to FOH), Dual 1/4" Outs (L/R Stereo), 1/4" Send, 1/8" Headphone out.

• Dimensions: Ultra-compact (4.7 x 2.7 x 1.8 inches).

• Power: 9V - 12V DC Regulated (200mA current draw).