Lehle RMI Acouswitch IQ Acoustic Preamp DI Pedal (Discontinued)


89 out of 100. Incorporating 60+ ratings and reviews.

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Lehle RMI Acouswitch IQ Acoustic Preamp DI Pedal

Meta Analysis Overview

Our rating of 89/100 is based on analysis of 60+ sources comprised of online reviews and discussions. Under the Pros and Cons headings below you'll find a condensed analysis of what those owners and users have been saying. Feel free to ask questions or add your thoughts in the comments section.

The Lehle RMI Acouswitch IQ is a preamp pedal that's meant for professionals who gig with multiple acoustics - so it is understandable for it go under the radar for many.

This three-in-one unit houses an acoustic guitar preamp, 3-band EQ with extra tone shaping controls, guitar switching feature and DI box functionality. It can serve as your main pedal where your instruments, tuner and effect pedals can connect to for easy access every time you perform, able to handle complex rigs and simplify connectivity and operation.


  • Pedal with acoustic guitar preamp, EQ, switcher, and direct box functionality
  • Input A/B switching for managing two instruments
  • Lehle input transformer
  • Switchable ground lift and Switchable pad for accommodating active electronics
  • 3-band equalizer with low shelving plus a sweepable midrange for channel A only
  • Body contour filter feature
  • Clean boost
  • Passive serial and active parallel effects loop
  • Input Impedance 5 M Ohm (per input)
  • Balanced XLR output
  • Dedicated tuner output


Many experts and users regard this preamp highly, praising its clean "Hi-Fi" and transparent sound that works with virtually any type of instrument. The smart implementation of its features and controls are also lauded for by majority of reviewers. Professionals love the effects loop implementation, and many are happy with the unit's elegant thin and flat profile, which makes it easy to step on, and use on stage.


There's not much complain about the unit, aside from it requiring quite an investment. I'd also point out that this unit takes up quite a lot of space, so space availability should be considered when getting this one.


If you are a professional that can justify the cost, and want to simplify your acoustic rig then this should be worth the price, however it's not on our current recommended list - for that please see our guide: The Best Acoustic Preamp Pedals.