Warburton Trumpet Mouthpiece Backbores

Sizes

1, 2, 3 Backbore - The tightest commercial sounding backbores. These models have a concentrated and intense sound. The #3 is the most popular of this series; it offers a bright, projecting sound that is great for lead players and outdoor work.

4, 5, 6 Backbore - Tight to medium. With progressively less resistance, these models produce a bright and very projecting tone. The #5 is by far our most popular with strong lead players.

Q Backbore - The Q is the most aggressive backbore, preferred by lead players who also need to maintain dominance in the middle register without spreading or over-loosening the player’s embouchure.

KT Backbore - This backbore appeals to commercial / lead players and is characterized by its projection and secure slotting of notes above high C. The comparative resistance falls in the 4, 5, and 6 series.

7, 8, 9 Backbore - Medium large sizes. The #7 has been our best selling model for the past seven years. This series produces a quality of sound acceptable in the orchestra as well as the concert band. Models #8 and #9 are very well received by the orchestra player who appreciates the increased volume of sound with less resistance.

10, 11, 12 Backbores - Very large “Symphonic” sizes. These models have very little resistance and offer the strong player the potential for the ultimate in full, rich sound.

Three Styles of Backbores

Standard Series - These 13 models and have been established as the most popular for all around playing situations.

Star Series - This series was designed to allow each Standard model to be more free blowing with the necessity of reaming to a larger bore size. This is important because the quality of sound remains the same without the risk of losing focus sometimes caused by playing too large bore size. Since these models were made available, the medium large sizes (7* to 10*) have been very well received in the orchestral trumpet community.

B Series - Exactly same as the Standard and Star series internally. The only difference is in the external dimension which is slightly larger and causes a subsequent increase in the gap between the end of the shank and the mouthpiece receiver. This has often proven to re-establish a functional gap distance in instruments with worn receivers and where the receiver has been soldered improperly.

While the use of the Standard series is best for most situations, if there is a noticeable problem with locking in the upper partials, the B Series backbores will very often rectify the problem.

Warburton Approximate Backbore Comparison Chart