Item Description

Commercial Backbore Descriptions 

#1 A tight backbore that provides a brilliant sound.

#2 A backbore that provides resistance yet provides a lively sound.

#2*O A more open version of the #2.

#3 Commercial but can be used for a variety of playing  situations. Very even from top to bottom.  

#4* A tighter version of the #4. 

#4 Open enough to give a full, broad sound.

#4*O A more open version of the #4.

#5* A tighter version of the #5. 

#5 Has power with less resistance to provide a bright tone.

#5*O A more open version of the #5. 

#6 A medium sized, full sounding backbore. Excellent for a variety of styles

Classical Backbore Descriptions 

#7 Provides full, warm sound for all around work.

#8 A smaller, yet dark, symphonic sound. "Schmidt" style. 

#8*O A more open version of the #8 backbore. The upper part of the backbore is altered/opened by introducing a partial '87' shape.

#9 A medium sized symphonic backbore that is centered and dark. (a downsized "24" style)

#9*O A more open version of the #9, sized right in between the #9 and #10.

#10 A bigger, darker symphonic sound. Excellent for orchestral work. (a full "24" style)

#11* A slightly tighter version of the #11.

#11 Big and free blowing to help in the upper register. Designed for piccolo use. ("117" Style)

#12 Very open and free blowing. Sounds extremely dark. ("87" Style)

Please Note:
Standard throat bore on all Modular Backbores is a #27
Modular Backbores are available in two weights, Regular and Medium. All Backbores are ordered as regular weight. Call to order additional sizes.