Experience the VGR Revolution on all Summit trumpets or as a Retrofit Kit for all standard trumpets!
The Venturi Gap Receiver is the most effective way to fine tune your instrument by addressing:
Efficiency - available in various shapes and sizes to ensure that what you put into the horn projects to your audience
Air Flow - quickly adjust venturi and air flow
Impedance - optimize gap with every one of your mouthpieces
The VGR will change the way you approach playing trumpet. Now you can objectively compare mouthpieces by ensuring your gap/impedance setting is consistent when testing. And you can quickly adjust air flow to find the optimum venturi that works best for YOU improving flexibility, slotting and accuracy in all registers. Installation is available on almost any brass instrument and you can even do the retrofit yourself with a few simple tools. Complete instructions, video examples of use and installation and extensive insights directly from Harrelson Trumpets available below.
Efficiency - available in various shapes and sizes to ensure that what you put into the horn projects to your audience
Air Flow - quickly adjust venturi and air flow
Impedance - optimize gap with every one of your mouthpieces
The VGR will change the way you approach playing trumpet. Now you can objectively compare mouthpieces by ensuring your gap/impedance setting is consistent when testing. And you can quickly adjust air flow to find the optimum venturi that works best for YOU improving flexibility, slotting and accuracy in all registers. Installation is available on almost any brass instrument and you can even do the retrofit yourself with a few simple tools. Complete instructions, video examples of use and installation and extensive insights directly from Harrelson Trumpets available below.
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VGR - Standard equipment on all Summit series instruments The Venturi Gap Receiver is included with every Summit series instrument and the new Bravura Flugelhorn. Also included are two sets of Inserts; one set in .350 venturi inside diameter in 9 lengths and the second set in your choice of custom venturi and length dimensions. Available in your choice of tapered or cylindrical profiles in two diameters that match our 5MM Modular Mouthpiece giving your trumpet and mouthpiece a seamless integral appearance. Note: The VGR was previously known as the AGR (Adjustable Gap Receiver) in previous blog posts. This name change was necessary as the development eventually included the Venturi. |
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VGR Insert Size Identification
Every Summit Series trumpet and VGR is shipped with a laminated identification sheet illustrated to the right. If you need a replacement, please download the "VGR Insert Size Identification" file below and print for your reference.
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VGR Installation on non-Harrelson instruments The Venturi Gap Receiver is available for installation on all brass instruments including trumpet, cornet, flugelhorn, french horn, baritone, euphonium, trombone and tuba. Photos to the right show installation on a Bach Stradivarius trumpet. |
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Video explaining the Venturi Gap Receiver
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Understanding the Adjustable Gap Receiver
VGR/AGR Articles AGR Revolution - part I - Introduction AGR Revolution - part II - Efficiency AGR Revolution - part III - Air Flow, Flexibility & Slotting AGR Revolution - part IV - Installation Tutorial VGR/AGR Videos AGR Installation Video #1 - First Summit AGR AGR Installation Video #2 - Bach Retrofit (part 1) AGR Installation Video #3 - Bach Retrofit (part 2) AGR Installation Video #4 - Bach Retrofit (part 3) AGR Installation Video #5 - Christine Installs an AGR on her Bach AGR Installation Video #6 - Christine's Feedback after AGR installation |
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How to change VGR Inserts
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Photos of the VGR Retrofit Kit
Purchase the VGR Retrofit Kit |
