Austin Custom Brass

ACB FX Hybrid Mouthpieces!

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  • ACB FX mouthpiece with gold plated rim and cup
  • ACB FX Hybrid Mouthpieces!
  • ACB FX Hybrid Mouthpieces!
"It literally transforms my horn into something completely different sonically, and feels great on the chops as well. Having played on the same two mouthpieces for the last decade I typically don't like to change my setup but this piece is a permanent addition to my gigging arsenal from now on." -Andrew


ACB FX Mouthpieces - Trumpet Mouthpiece, Flugelhorn Sound

Want that flugelhorn sound, without having to travel with a flugelhorn? Then the ACB FX Series Hybrid Mouthpieces are for you!

This is an extension over our very popular TF series... people have wanted an even deeper, darker, richer, and thicker hybrid sound. This is it! The extra short (but still standard gapping) trumpet shank balances out the extra-deep cup for improved intonation. We are very excited to offer this to our clients! Every rim in the ACB line is available. Get yours today!

Check out the rims and comparisons here!


Call the Mouthpiece Hotline with questions or to place an order! +1-781-816-9664 

Check out the sound of these mouthpieces in the videos below!

As you can imagine, having access to a darker, more flugelhorn-like tone color through a simple mouthpiece change is much more convenient than carrying a flugelhorn with you at all times. We developed this mouthpiece so you can always have that deep, rich sound handy--right in your mouthpiece pouch!

You don't have to just take our word for it. Read some to the reviews below to see how the ACB FX Series Mouthpieces are helping our customers expand their sound palettes and raise their trumpet game to the next level!


If you have additional questions, please send us an email!  

Prior to ordering please check our Shipping and Returns policy.

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


We have mouthpieces equivalent to the Laskey 84D, Warbuton 2D, Laskey 84B, Warbuton 2MD, Laskey 84C, Warbuton 2MC, Hickman GW, Bach 1X, Monette B1-1, 30's Bach NY1, Vincent Bach 1 mouthpiece, Laskey 80B, Haefer, Yamaha 16C4, Schilke 16C4, Bach Mount Vernon 1 1/4C, Curry 1.25BC, Bach 1 1/4C, Bach 1/4 C, Tilz 1 1/4CE, Monette B2, Monette B2S3, ACB 1.25C, MV 1-1/4C, Monette B2LD, Tilze 1 1/2E, Bach 1 1/2B, Monette B3, Curry 1.5BC, Warbuton 3MD, Bach 1.5C, Monette B3, Curry 1.5C, Warbuton 3MC, Bach 1.5C, Monette B3, GR 67, Monette B3L, Bach 1.5D, Mount Vernon 3C, GR 66.5, Mount Vernon 3B, BH3, Monette B4, Bach Mt. Vernon 3, Monette B4S, Bach Mt. Vernon 3D, Monette B4L, Bach 2 1/2C, Bach 3D/E, Curry 3DE., Monette B5L, Bach 3, Bach 3B, Monette B5, Bach 3, Warbuton 4MC, Schilke 14B, Monette B6s1, GR 65M, Pickett 5D, Monette BLM, GR 65M/S, Monette BL, GR 65S, Pickett 5E, New York Bach 5B, Pickett 5B, GR 74.7 MX, Bach 5B, Pickett 5C, Curry 5C, Monette B6, Giardinelli 7M, Bach 7D, Monette B7, Bach 7E, GR 64S, Giardinelli 7S, New York Bach 7, New York Bach 7B, Giardinelli 10M, M Shew 2, New York Bach 10 1/2C, Shew Yamaha Lead, Marcinkiewicz Shew 1, Giardinelli 10S, Schilke 14a4a, Monette B4L, Bach MV 3D, Marcinkiewicz Shew 1.75, Vintage Gustat Heim trumpet mouthpiece, Al Cass 1-27, Cat Anderson trumpet mouthpiece

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13 Reviews

  • 5
    trumpet mouth pieces

    Posted by Roy Prevette Jr on 21st Sep 2022

    I own 3 of these, 1Bfx, 1.25 cfx, and 3cfx. All super pieces in quality and production of sound.

  • 5
    ACB FX Mouthpiece- What a Cool Piece!

    Posted by Alex Pawlowski on 10th Jan 2022

    This is a such a cool mouthpiece! It plays so smooth, dark, and soft, and isn’t nearly as hard to play as you’d think! As others have said, anything above an A above the staff is pretty difficult to achieve, but that’s just the nature of the mouthpiece. Everything else is feel wise is pretty close to its trumpet mouthpiece counterpart It is SUPER deep and the throat is really wide, which gives it a really open blow. The mouthpiece is short in length, and really cool lookin! It sounds exactly like a flugelhorn. The best part is if you already own an ACB piece, you can put the rim of your daily driver on the FX and it feels the same on your face, no adjustment needed! The ACB FX is just a fantastic mouthpiece that is so unique, fun and practical to play, and is a prefect compromise if you don’t have a flugel handy. Thanks to everyone over at ACB for their fantastic customer service and this amazing mouthpiece!

  • 5
    Hybrid mouthpiece

    Posted by Brad Niemi on 14th Dec 2021

    This ACB hybrid trumpet/flugelhorn mouthpiece does exactly as advertised: gives a Bb trumpet a very dark, flugelhorn sound. VERY useful if you do a lot of gigs, as I do, where are you might need a flugel horn on only a couple of tunes. As usual, ACB service and pricing is top notch!

  • 5
    Fx Mouthpiece

    Posted by John Hamilton on 27th Oct 2021

    This was a great inexpensive alternative for playing in the jazz group at my college instead of purchasing a flugelhorn.

  • 5

    Posted by Chris Nea;e on 17th May 2021

    First new mouthpiece in 30 years. Wanted to replace my Stork 2B and was after speaking to someone I went with the FX Papa Bear. Quick shipping and nice packaging. It played great out of the box. Nice dark sound. Need to spend more time on it.

  • 4
    FX Hybrid 2B

    Posted by Richard Roenne on 11th May 2021

    I have the Hybrid FX 3 and the Standard 2B trumpet mouthpiece. I wanted the 2B in the FX series to keep the same rim as the 2B trumpet. It does work fine and it also fits the large taper mouthpipe to my flugelhorn, which makes the flugel sound even more buttery. Love it.

  • 5

    Posted by Bryant Jordan on 27th Nov 2020

    There's really nothing else like it. It turns your horn into something you didn't know existed, and opens up a TON of possibilities on the trumpet. 100% recommended. And, as always, superb customer service from Josh and Trent at ACB. The best of the best.

  • 5
    FX Hybrid 3

    Posted by Rick Roenne on 19th Nov 2020

    You are exactly correct. Have tried it out on my Yamaha Xeno in the large bore and reverse lead pipe, and what a dark sound. Just beautiful. Going to try out the solo "Share My Yoke" on it and I think I am going to love it. I also like the shorter shank which I think will bring in some notes to be better in tune. The fit does feel very similar to my Bach 3 but with that flugel sound. I hope others feel the same way I do. If so, then I know you will have a winner in the sales market. I also want to say that the gold rim and cup do not slip on the lips, at least for me, it may take a little longer to get the mouthpiece but it is worth the wait. As the British would say, "Good-OH". "Jolly well good".

  • 5
    Everything and more !!

    Posted by Garot Conkin on 28th Feb 2019

    Reached out to my pal Troy Dowding to have a discussion about a mouthpiece that would best emulate the mellow tone of a flugelhorn without having to switch to a flugelhorn. The ACB FX Hybrid came up immediately from Troy. I checked out the video on the ACB site and wow... these pieces are every bit as mellow as the DEMO reveals. Very deep cup, very free blowing, almost no resistance and man does it mellow out any horn. I have an old Conn 16B Director as well as my main RBT Benzina custom horn, and they are both like butter with this mouthpiece. If you are looking for that mellow flugelhorn sound out of your trumpets, look no further.

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