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Holy Grail Bass Tone in a Pedal: Origin Effects Unveils the All-Analog BASSRIG Fifteen Amp Sim/DI 

The BASSRIG Fifteen by Origin Effects is an all-analog bass amp simulator meticulously recreating the complete circuit and feel of the vintage Ampeg B-15.

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Holy Grail Bass Tone in a Pedal: Origin Effects Unveils the All-Analog BASSRIG Fifteen Amp Sim/DI 

Origin Effects, the acclaimed British pedal manufacturer, has officially launched the BASSRIG Fifteen, an all-analogue bass amp simulator and DI pedal that meticulously recreates the legendary tones of the vintage Ampeg B-15 Portaflex combo. This compact pedal brings the revered "flip-top" amp's warm, punchy, and studio-grade sound—often called the "holy grail" of recorded bass—to modern stages and studios.

Capturing the Soul of '60s Bass

The Ampeg B-15 is famously known for defining the sound of '60s soul music and being a long-time studio favourite due to its rich, clean tones and subtle, musical overdrive. Origin Effects’ BASSRIG Fifteen encapsulates this legacy using their sophisticated Amp Recreation circuitry, previously seen in the RevivalDRIVE and DELUXE55 pedals.

Origin Effects BASSRIG Fifteen Hero Image (Web Use)__20761
Origin Effects BASSRIG Fifteen

"The BASSRIG Fifteen is not just a simulator; it’s an all-analogue recreation of the entire vintage valve amp circuit," explains a spokesperson for the UK-based company.

This cutting-edge analogue design includes:

  • A simulated preamp and phase inverter.
  • A push-pull output stage with a reactive load.
  • Rectifier sag for authentic power supply response.
  • An all-analogue 1x15 cabinet simulator.

This comprehensive approach ensures the pedal captures both the sound and the feel of the original B-15 amplifier, making it an essential tool for professional bassists seeking vintage tone without the hassle of vintage maintenance.

Pro Features for Modern Bass Rigs

Designed and built in England with premium components and a rugged brushed stainless-steel enclosure, the BASSRIG Fifteen is built to withstand the rigours of touring.

Key features for the modern bassist include:

  • Versatile DI OUT: Provides a studio-ready, cabinet-simulated signal for direct connection to mixing desks or recording interfaces. Flexible switching also allows for a clean DI, a cab sim for other preamps, or an unfiltered preamp output.
  • AMP OUT EQ Circuit: A comprehensive control set for players connecting to a traditional bass amp. This unique EQ allows users to match the pedal's tone to any modern full-range bass amp, giving a modern stack the characteristic response of the B-15’s ported 1x15 cab.
  • BLEND Knob: Mixes in a clean signal for parallel processing and tonal flexibility.

The Origin Effects BASSRIG Fifteen is an indispensable tool for bass players in the United Kingdom, Europe, and worldwide looking to infuse their sound with the classic warmth and punch of an Ampeg B-15.


  • Weight: 846 g (1.86 lb)
  • Power: 9V DC, 150 mA current draw.

Price & Availability

The Origin Effects BassRig Fifteen Amp Simulator and DI Pedal is priced at £449/$565/€499. Available at Andertons, priced £449 Available at Sweetwater, priced $565 Available at Thomann, priced €499

More Information

#Origin Effects #BASSRIG Fifteen

Jef Stone
Jef Stone
Founder and editor of GuitarBomb. Jef has been writing about guitars, effects pedals, and music gear for over ten years, covering everything from breaking gear news and leaks to hands-on reviews.