Professional Bass Engineering, Pedalboard Scale
Achieving a "record-ready" bass tone usually requires a mountain of gear: a tube DI, a parallel compressor, and a high-end cabinet microphone. The DSM & Humboldt Simplifier Bass Master consolidates that entire signal chain into a 100% analog pedalboard workstation. This is the new standard for the direct bassist, offering zero latency, massive headroom, and a level of signal routing previously only found in high-end recording consoles.
The Parallel Powerhouse
The Bass Master's secret weapon is its dual-path architecture. It allows you to split your signal into two distinct streams before mixing them back together at the cabinet simulation stage:
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The Preamp Path: Sculpt your character, grit, and harmonic content.
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The Parallel Path: Protect your fundamental "thump." With a switchable Low Pass Filter (100Hz or 500Hz), you can ensure your low end remains clean and focused, even when your top end is screaming with distortion.
The Tonal Architecture
Three Distinct Preamp Modes:
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Clean: Absolute transparency. The perfect high-headroom foundation for your external pedals.
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Comp: Musical, studio-grade compression that adds "weight" and consistency to every note.
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Hot: A rich, tube-style drive engine that provides harmonic saturation from vintage "grit" to modern "grind."
The Cabinet Sculptor: Go beyond a simple EQ. The Bass Master features an analog Cab-Sim that lets you define the physical space of your sound:
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Selectable Cabs: 8x10 (Sealed Stack), 4x10 (Modern Punch), 1x15 (Vintage Thump).
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Speaker Color: Choose between Warm, Bright, or Modern voicings.
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Porting & Tweeter: Dedicated knobs to simulate the "air" movement of a ported cabinet and the "sizzle" of a high-frequency horn.
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Circuitry: 100% Analog Preamp and Cab Sim.
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EQ: 4-Band Studio Grade EQ (Bass, Low Mid, High Mid, Treble).
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Routing: Integrated Phase Switch and Parallel Blend.
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Dual FX Loops: * Pre-FX Loop: Assignable to the Preamp, Parallel path, or Both (ideal for specialized filter effects).
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Main FX Loop: Post-preamp stereo integration.
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Connectivity:
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Dual XLR Outputs: "Main" (Full Cab Sim) and "Parallel" (Clean/DI signal) for independent FOH mixing or re-amping.
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Dual 1/4" Outputs: With "Parallel-Thru" and "Cab-Sim Bypass" options.
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Practice Tools: 1/8" Aux In and Headphone Out with dedicated level control.
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Power: 9V - 12V DC, Center Negative (Current Draw: 100mA).
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Chassis: Compact, ultra-rugged anodized aluminum.
- Owner's Manual
We are open Tuesday-Saturday from 10am until 6pm CDT.
Any order placed before 3pm CDT Tuesday through Saturday is processed for shipment the same day. Orders placed Sunday-Monday will be processed for shipment the following Tuesday.
For Free Shipping items, Effects pedals and small goods items are generally shipped via USPS Priority Mail, and Guitars and Amplifiers are generally shipped via UPS Ground.
Due to our central location in the middle of the US, most orders will be delivered within 1-3 days delivery time.
Other shipping methods are available (at an additional cost), including next day air.
Please call us directly at (972)540-6420 if you have any questions regarding shipping for your order.

Product Videos
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Simplifier Bass Master x Ben Jud
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Simplifier Bass Master sound demos with BenJud
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