About GR Technologies

Home

Superior Design

GR Technologies has carefully defined the mouthpiece with mathematical parameters. With this progressive thinking comes a new tool for mouthpiece design. With this new paradigm in brass instrument technology and development comes change. Now that we have lines, arcs, points, and angles to describe the mouthpiece we will not be using the same terminology as other makers.

GR Mouthpieces are designed using our own Design Program. 

This program ensures that every mouthpiece designed by GR solves the Sound Wave Equation.  This means that the sound wave is taken into account in the design of every GR Mouthpiece.  By solving the Sound Wave Equation, the sound wave travels through the mouthpiece and  reflects back from the bell without any interruptions what so ever.   This is accomplished by removing all Discontinuities from the design.

A Discontinuity in a mouthpiece occurs when there is an abrupt change in any parameter.  Discontinuities will cause the sound wave to alter it's course and not line up properly.  This affect is similar to adding a speed bump to a super highway.  GR Mouthpieces contain no discontinuities.

Superior Manufacturing Techniques   Having our Design Program means nothing if you simply can not put the math to the metal.  Mouthpiece designer and manufacturer Gary Radtke (GR) has an extensive background in both musical performance and education, and manufacturing and design.  His experience in both playing trumpet professionally and teaching has enabled him to assess players, and determine the direction to proceed to fix any playing or equipment problems. Gary's many years of design and manufacturing experience has allowed him to use manufacturing techniques that are unique to GR Technologies, and design special tooling also unique to GR. GR Technologies uses the latest in "state of the art" machinery and machining techniques.

Gary Radtke

Superior Finishing Techniques

Every GR Mouthpiece is meticulously prepared for plating using our state of the art polishing equipment and techniques. 

The GR Logo and Mouthpiece Designation is engraved on each mouthpiece.  No hand or roll stamping.  When a GR Mouthpiece is ready to be plated, it has a smooth luxurious glass like finish with no parameters being altered in the process. 

We use only the finest plating companies in the industry and hold them to strict tolerances.

Superior Diagnostic and Customer Services

With new thinking and new technology, comes new diagnostic methods. 

These methods, in the form or our GR Mouthpiece Questionnaire and Our GR Playing Tests, assist us in determining the proper GR Mouthpiece to match  you, your horn, and your playing requirements.

GR Mouthpiece Technician Brian Scriver has been involved with GR Technologies since the conception of the company.  He has undergone years of training in GR Mouthpiece design and player diagnostics.  Contact Brian for assistance in choosing a GR Mouthpiece.

Also, as an experienced educator, Gary Radtke is pleased to offer GR Clinics. These clinics emphasize equipment knowledge, the scientific principles of playing a brass instrument, and how to achieve the match between player and equipment. Go to our Clinics Page for details.

 

I bought the Primal 62 from you guys about 4 months ago. I have yet to reach the limit of the mouthpiece. You'd be happy to hear that my church orchestra has 3 GR customers now. I just bought a Xeno 8335RGS, put in the Primal 62 and found out that making the trumpet scream isn't suppose to be a strain. I wanted to tell you thanks for helping me pick out the right mouthpiece for me. Rob