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By  Martinic

(1 customer review)

Kee Bass free virtual instrument is a physical modeling (no samples used) plugin of vintage Elka Panther 300 (1966-1972) and the rare LEM Tape Echo delay effect.

Available for Windows and macOS as a VST, CLAP, and AU plugin.

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The New Musicians’s String Bass Simulator

Bring some groovy, bassy vibes back from the ‘60s and straight into your music with Martinic’s faithful emulation of one of the first monophonic string bass simulators, the Rheem Kee Bass.

The Martinic Kee Bass VST/AU/CLAP plugin is based on the original electronic schema and an actual physical Kee Bass. Firstly Martinic modeled the instrument precisely (no sampling at all), then a few modern features were added to make it more versatile and unique, such as an extended range, a filter, and modulation.

And best of all… you can get a licence now FOR FREE!

Martinic Kee Bass Virtual VST Instrument


The Kee Bass was one of the first monophonic string bass emulators. Note tuning was accomplished through individual trim pots, one per key. This made tuning relatively easy and accurate.

They have a limited lifespan, however, if one key ‘went’, the others would remain stable, making for an easy fix and a reliable product. The Kee Bass, interestingly, used the same power supply that was used for televisions at the time. Read more about the history of the Kee Bass.

Martinic’s ACE® modeling technique ensures the highest quality, most accurate recreation of analog instruments and FX. When you see the ACE® logo, you know you’re getting the best.

Physical modeling (no samples used) of vintage Rheem Kee Bass.


  • Bass Fuzz sound – built in
  • Percussion – Fast decay
  • Percussion – Slow decay
  • Sustain
  • Bright-Mellow option on all sounds
  • 2 Full Octave Keyboard
  • Modeled Solid State Electronic Circuitry
  • 7.5 MB Portable Lightweight Beauty
  • Plays Booming String Bass Notes when loaded into any VST/AU/CLAP host



  • Mac OS 10.9 or newer.
  • VST, AU, CLAP plugin format.


  • Microsoft Windows 7, Windows 10 or 11.
  • VST, CLAP plugin format.

Protected by FastSpring generated license key file. No dongle or online activation.

No Returns on Software. Once your software is activated it is not eligible for returns.

1 review for KEE BASS (Free)

  1. c.dezi

    Elka Panther Instrument + on board effects is here! Very good VSTi, download and enjoy!

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  2. Proceed to the product page page, click on the "Download Path" button after your order is complete.
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  6. An email with the license and further installation instructions will be mailed to your email address.

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