Backbores and Tops

Austin Custom Brass Backbores All ACB tops and backbores utilize the now universally accepted "Warburton" threads, making them compatible with almost every other maker's modular components! Check out our mouthpiece sizing spreadsheet to see which...

Our New Standard Series Mouthpiece Tops in Beautiful, Comfortable Acrylic! I started making and playing on acrylic mouthpiece tops due to my allergies to silver and gold, but they've become incredibly popular with our customers as well! They're super...

Just arrived!   Please note this listing is for a backbore only.  If you'd like to purchase a top  please see the AR  Resonance top listing.      We are super excited to sell Antonio's incredible backbores and...

Mouthpiece Tops From ACB! Making custom mouthpieces is one of the main reasons I opened up my shop. I wanted to make a mouthpiece that felt comfortable, had a rich sound full of overtones, and didn't zap my endurance! After a lot of time on the lathe,...

We are so excited to be a dealer for Antonio's incredible pieces! Members of our ACB Low Brass Team have been playing on AR Resonance for years and rave about them! The craftsmanship is outstanding and this comes through in their performance. Discover...

ACB KA Series Backbores - The Commercial Sound You've Been Waiting For! Having the right backbore is a huge component of finding your perfect mouthpiece, especially in high pressure lead trumpet/commercial settings. Our KA Series backbores are designed...

Do you like to buzz your mouthpiece but find that the resistance isn't the same as playing your instrument? Is the sound of your buzzing driving your family and neighbours crazy? Do you need to keep your face in shape while away from your...

Introducing the  ACB  Commerical Mouthpiece Experience!   Ever wanted to try a bunch of combinations but just didn't know where to start? Are you on a fixed budget and can't afford to pay thousands? Have a studio full of players and...

Special O.P.S. - Optimal Pressure System       The Warburton "Special O.P.S." - Optimal Pressure System There's no such thing as "no pressure" when it comes to playing the trumpet. However, too much...

Now in stock in select sizes for ACB  pieces:    Reeves Sleeves allow you to optimize the gap between the end of the mouthpiece and the beginning of the leadpipe. Sleeves are available in quarter-sizes which adjust the gap in increments...

Introducing the  ACB  Commerical Mouthpiece Experience!   Ever wanted to try a bunch of combinations but just didn't know where to start? Are you on a fixed budget and can't afford to pay thousands? Have a studio full of players and...

Absolutely amazing mouthpieces by our friends at AR  Resonance! Why not play some of the best flugelhorn mouthpieces in the world!   FLUGELHORN MOUTHPIECE TOPS Note: This Listing is for Flugelhorn Mouthpiece Tops Only. Click Here for...