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Northern Brass Mouthpieces by GR

Northern Brass Mouthpieces are known for their solid upper register, but not at the expense of producing a good sound in the low and middle registers, pointed articulations, and acrobatic flexibility make the NB some of the most versatile mouthpieces available.
Originally designed and manufactured by GR as custom designs made to help solve the problems inherent in mouthpieces designed for upper register work, and for efficient all around playing.
Very high alpha angles can not be played well by most players the sound becomes brittle and articulations are very sloppy. Very low alpha angles can make articulations harsh and sound very tinny.

GR designed the NB mouthpieces keeping in mind first, an alpha angle which is playable by the majority of players. This unique alpha angle was developed in order to keep the chops supple and free to vibrate, yet provide support and fast, clean articulations. Players will experience a much broader spectrum of sound with NB compared to other commercial / lead designs. Higher as well as lower overtones are full and in focus.

Very high alpha angles can not be played well by most players the sound becomes brittle and articulations are very sloppy. Very low alpha angles can make articulations harsh and sound very tinny.
GR designed the NB mouthpieces keeping in mind first, an alpha angle which is playable by the majority of players. This unique alpha angle was developed in order to keep the chops supple and free to vibrate, yet provide support and fast, clean articulations. Players will experience a much broader spectrum of sound with NB compared to other commercial / lead designs. Higher as well as lower overtones are full and in focus.

All Northern Brass models are mathematically and acoustically designed by GR Technologies to create unique high efficiency mouthpieces that are capable of much more than just assisting the upper register.


How to choose a Northern Brass Mouthpiece

Rim:
The first number is the rim type.
- #4 Rim: Semi flat without causing excess lip impingement.
- #3 Rim: Slightly narrower and has a more rounded feel with good support.
- Both of these rims have a soft/medium soft bite and are very comfortable.
- Width and high point placement it makes the smaller diameters feel larger than you might expect. thus making it easier to downsize as that you have similar lip engagement of a larger diameter while gaining the efficiency of the smaller cup.

***Quick Comparison***
- #4 rim is not as wide overall as the GR "e" rim but is slightly wider than the standard GR rim.
- #3 has less bite than the standard GR rim.

Cup Diameter
The 2 digit number is the rim inner diameter:
(63=.630) (64=.640) (65=.650) (66=.660)

Cup Volume
- The stars ***, ****, ***** identifies the cup type / volume.
- The *** is a shallow cup. Bright but fat trumpet sound.
- The **** is medium shallow with slightly darker sound very flexible.
- The ***** is slightly deeper than the **** and allows more lip in the cup with a slightly broader sound yet still very efficient.
- All GP models have the *** cups with the #4 rims.

Backbore
All models feature the GR #1 backbore. This tried and true backbore is popular on GR commercial mouthpiece models and can be heard in various settings around the world. This backbore provides focus, efficiency, and a flexible sound.

What's New
We have added 6 new models with the #3 rim profile. The all new 3-64***,3-64****.3-65***,3-65****,3-66***,3-66****.