Adams Musical Instruments - Together in Music

Adams A4 Trumpet

The A4 is one of the most popular models in the Adams trumpet line. Featuring a 140 mm one-piece bell and a heavy chassis, this horn is an ideal choice for the soloist looking for an extremely rich, warm, fluid, and thick sounding horn. The larger bell diameter, bell flare shape, and lighter gauge bell give you exceptional feedback behind the horn and good sound dispersion out front. This is one of the heavier models of Adams trumpets, but is incredibly versatile: it will work in many different musical environments due to wonderful coloring and richness of the sound.

Specifications A4

Key: Bb
Bell Material:
Gold Brass
Bell Diameter: 140 mm
Bore: L 12 mm
Leadpipe: Nr. 3 Yellow Brass 
Valve section: Nickel Silver balusters with Bronze casing (heavy)
Valves: 3 x top center stainless steel
Finger buttons: Yellow Brass, wooden inlays
Waterkey: Amado
Finish: Satin Lacquered
Gauge: 0.40
Case: Included 

Your choice of mouthpiece is extremely personal and very important for playing pleasure. That is why we do not supply a standard mouthpiece with our instruments.

The A4 is a result of extensive collaborative design work with Adams Performing Artist Amik Guerra, who says:

"You know, as a professional musician you always want to have an instrument which is just, expressing what you have in your head. In some ways it's like an amplifier of what you have inside. And you've got to have the best amplifier.

The relationship between a musician and an instrument is really close. As I came to Adams with the idea of the A4 I had really specific needs and ideas about how I wanted the horn to sound, the flexibility, the playability the intonation... It's also what I needed for my shows. I hear the sound in my head, but I needed a hand which will put this together.

And of course as a musician and not as an instrument builder, you have all these ideas that sometimes are not even compatible, and you need someone who is going to make them work together. We had a really long year of work with Miel Adams to find the way, and these needs I really wanted, and all these ideas which I wanted to put together. And at the end of one year of work, i was like: Oh, this is the instrument I was dreaming of for my whole life! And it covered everything I really wanted and needed in my horn."

Oh, this is the instrument I was dreaming of for my whole life!

— Amik Guerra

Lightweight version

The Adams A4 also has a lightweight sibling, the A4LT. The A4LT features a similar overall design but with some lighter weight components.

Shepherd Crook

The A4 trumpet is as custom model also available in a shepherds crook model allowing for further customisation that allows for more personal expression in the dynamic and articulation palette.

You are not average

Some people like a warmer sound. Some not. Some people have huge lung capacity. Some have not. Some people like engravings. Some do not. Some people need more playing resistance. Some don't. These are extremely personal factors that can affect an instruments design.

The Adams instrument builders like to go beyond expectations. With an in-house development and production, this means that we can fully customize your instrument. Compiled according to your personal preferences.

Do you want to know more about the Adams Custom instruments? Contact us and discover the possibilities.


Browse the Adams Brass collection

Request the Adams Brass catalogue now, free of charge. Discover our handcrafted brass instruments, and be inspired by stories of exceptional musicians and passionate instrument makers.

Request for free

Where to buy?

Adams delivers through an extensive network of dealers and distributors worlwide. Check out who to contact for further assistance in getting your new instrument.

Dealer locator