Tech 21 Rackmount Bass Preamp RBI

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  • Regular price $499.00
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In short, the SansAmp RBI is a pumped-up, expanded version of our popular SansAmp Bass Driver DI pedal. It features an Effect Loop with a Mix 50/50 switch (for parallel or series operation), an XLR output with selectable levels, and a buffered direct XLR output to provide a dry signal.

Having access to the most coveted classic and modern bass tones, with unlimited freedom to create your own, the SansAmp RBI is practically mandatory for any bass player.


  • Drive adjusts the overall amount of gain and overdrive.
  • Presence brings out the upper harmonic content and attack.
  • Blend allows you to mix the direct instrument signal with SansAmp Tube Amplifier Emulation circuitry.
  • Active Bass and Treble controls cut or boost ±12dB.
  • Dedicated Mid control, cut or boost ±12dB.
  • Individual Level control for the XLR out to optimize your amp’s output relative to the P.A. system.
  • Effects Loop.
  • Mix 50/50 switch to configure the Effects Loop in series or parallel.
  • 1/4″ rear input and XLR output with selectable levels.
  • Buffered uneffected XLR output to run a dry signal to a separate channel.
  • Footswitch input to engage unit.
  • Footswitch output to chain and toggle between another SansAmp RBI. (If you prefer programmability, you may want to consider our own “not-just-for-guitar” SansAmp PSA 2.0. There are 10 presets devoted to bass and 49 user-definable locations for storing custom settings.)
  • Dimensions: 19″w x 1.5″h x 5.25″d (6.25″d overall)
  • Weight: 5 lbs.
  • As a pre-amp with an amp
  • As a pre-amp to drive a power amp
  • Direct to a mixer of a PA
  • Record direct to your computer