TBTech Kirchhoff-EQ (Windows)

In Stock

System Requirements

  • Windows 10,11.
  • 64-bit VST2,VST3, AAX
In Stock


Kirchhoff-EQ is an ultimate 32-band parametric EQ plugin built for all critical professional applications. It has refined sound quality, analog-matched curves, 15 filter types with continuously variable shapes,s and 32 vintage EQ types modeled from real-world devices. The built-in dynamic processing functions are highly flexible and have ultra-low distortion. All these push Kirchhoff-EQ to a next-generation standard.

Ultimate Sound Quality
Robust Nyquist-matched Transform

Though originally developed “Robust Nyquist-matched Transform”, Kirchhoff-EQ has made digital-domain frequency response more approximate to its analog counterparts without high-frequency cramping as in regular IIR (infinite impulse response) equalizers. This technique is applied to all filter types in Kirchhoff-EQ.

High-Precision Processing
64-bits is mandatory and it’s not negotiable. The internal processing of Kirchhoff-EQ is always in 64 bits, regardless of the host DAW’s current working precision.

Psychoacoustic Adaptive Filter Topologies
All linear filter structures should have the same sound on paper. However in real-world applications, round-off errors make every filter structure sound differently: some better in low frequencies, some better in high frequencies. A technology called “Psychoacoustic Adaptive Filter Topologies” has been deployed in Kirchhoff-EQ. Filter structures change themselves to a “best fitting” state along with corresponding band frequency changes, resulting in optimized sound quality in both low and high frequencies.

Switchable Ultra-High 117-bits Processing
Since there are already 64 bits, why not go further? Kirchhoff-EQ uses a technique called “Double-Double” to make the precision of internal processing reach 117 bits! This is the first equalizer in the world to reach such precision. You can switch between 64-bits and 117-bits at any time. It satisfies the most demanding ears.

15 Unique Filter Types

  • low pass, high pass, band pass: continuously variable from 0 dB/oct to 96 dB/oct;
  • bell, notch: continuously variable from 12 dB/oct to 96 dB/oct;
  • low shelf, high shelf, tilt shelf: continuously variable from 6 dB/Oct to 96 dB/oct;
  • flat tilt and flat top;
  • sword: has a sharper slope than the bell, specifically designed to “dig” out resonances.
  • brickwall low pass, brickwall high pass, allpass low and allpass high.

26 reviews for TBTech Kirchhoff-EQ (Windows)

  1. Karleen Marr (verified owner)

    Already installed and it’s works very well. Super happy with it.

  2. Lissa Boehm (verified owner)

    Legit, fast, and good price!!!!!! the support agents are really great as well👍👍

  3. Gertrud Schindler (verified owner)

    Service was fantastic. They were able to resolve my issue right away.

  4. Mellisa Worth (verified owner)

    Plugins Forest was very helpful and knowledgeable about the product I was purchasing.Recommended

  5. Val Bright (verified owner)

    Fantastic service agent providing outstanding customer service!!!

  6. Bobette Corbett (verified owner)

    Fantastic s. Very very very easy installation and all module works fine.. Fantastic.

  7. Marine Bauer (verified owner)

    knowledgable,informed and patient. VERY WELL DONE

  8. Robbi Hannah (verified owner)

    All items working well.Good product quality. Good value for money. Very very fast delivery. Really recommended. Really cheap compare to others. Will repeat order again with this shop. Excellent service by Plugins Forest

  9. Zofia Bourgeois (verified owner)


  10. Cherise Shelley (verified owner)

    Great assistane, very please with the help provided

  11. Marnie Harkins (verified owner)

    So wonderful to speak to a person who knows the product line well as well as understanding techno illiterate customers

  12. Lilly Edge (verified owner)

    Great experience. Thank you Dino for your help. I would recommend your services to anyone.

  13. Jordan Blalock (verified owner)

    it was done quickly and efficently. well done and THANK YOU again

  14. Petronila Arevalo (verified owner)

    Very impressed with your work ethic and dealing with your tech team.

  15. Florencio Grimm (verified owner)


  16. Delpha Mcswain (verified owner)

    Respond very fast, tested the filters and so far no issues faced and worked properly

  17. Melani Matos (verified owner)

    The videos helped me feel confident I am ordering the right product for my needs.5star

  18. Shirley Steinberg (verified owner)

    Rose answered all of my questions and concerns very professionally , was a pleasure doing my purchase with her !!! Would recommend!!

  19. Jacques Manson (verified owner)

    Fast response, recommended . Jangan segan silu nak beli dari kedai ni ✨✨✨✨✨

  20. Cheri Huggins (verified owner)

    Thank for all your help! You were Professional and courteous!

  21. Nickie Kerr (verified owner)

    thanks for the service.it was appreciated.

  22. Vivan Spooner (verified owner)

    Very good service-all issues were resolved for me.thank you Plugins Forest

  23. Melonie Hayden (verified owner)

    I appreciate it. Thank you.

  24. Carley Huey (verified owner)

    Great customer service and technical support from them for us i can call them anytime for problems and I’ll get answers right way

  25. Katharyn Roe (verified owner)

    I purchased and thought of going to sleep while waiting. But then 5 minutes later, ping! , done send. I was like holy crap. That was faster than my last relationship. I like this.

  26. Myrta Moffett (verified owner)

    Great customer service. I very much appreciate Plugins Forest!!!

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