Custom Adams F4 Flugelhorn: Build Your Own

Typically ships within 8-10 weeks (4-5 months with custom engraving)
(3 reviews)
12.00 LBS
24.00 (in)
12.00 (in)
12.00 (in)
Current Stock:
Adding to cart… The item has been added

Order your own completely custom Adams Flugelhorn - every Adams instrument is completely handmade at the factory and built to the specifications of the customer. 

The F4 is available with either a 4th that lowers by a quartertone or a 4th. These horns are surprisingly light given the 4-valve setup. 

Key Bb
Bore ML .413" reaching to 0.433"
Bell 1 piece
Bell diameter 6.0"
Leadpipe nr. 2 (0.402") or nr. 3 (0.413")
Valve section Brass 400 gram (standard)
Valves 4 x top center stainless steel
Finger buttons Brass
Wall thickness 0.50 MM - 0.55 MM - 0.60 MM

Here's a quick lo-fi video of the "low" valve option:

And here's a live clip with the quarter tone valve option:




Prior to ordering please check our Shipping and Returns policy.

If you have any questions please send us an email or give us a call at (816) 410-0826! We also offer several financing options.

Also note weight indicated in the ad is shipping weight not actual weight of instrument.


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  • 5
    Beautiful instrument

    Posted by KTurner on 6th Nov 2023

    The Adam F4 is such a beautiful instrument. Nicely weighted, smooth valve action, great, full sound. I have the quarter-tone to play middle eastern scales and true blue notes. Past flugelhorns I’ve had tended to have noise when pressing the valves. This is quiet. ACB was amazing getting this order processed and communicating when to expect delivery. They also sent a video of their test play when it arrived in the shop and a video on breaking i. the valves. Top notch!!

  • 5
    The New F4 - 4 Valve Flugelhorn

    Posted by Gary Greenfelder on 24th Jun 2021

    WOW! I traded in my F2 Flugelhorn for the 4 valve option. This slots on this flugelhorn are amazing, like no other flugelhorn I have played. The clarity of tone is exceptional while the timbre is still very flugelhorn. My band mates fell in love with this horn as quickly as I did! Looking for an amazing well in tune flugelhorn with the extended range of the 4th valve? This is it!

  • 5
    Adams F4 flugel

    Posted by David Gilden on 4th Jul 2020

    This is a beautifully made instrument. More importantly, I sound good when I play it and it is very easy to play. I got it with a quarter tone 4th valve so that I can play Middles Eastern quarter tone scales in tune and without struggling. Buying instruments online is a dicey proposition but the people at Austin Custom Brass have earned my trust. Last year I bought an A10 on their recommendation which is an absolutely perfect fit for my style of playing.