Bach 5c Trumpet Mouthpiece Specs – REVIEW And Why It’s Good

Bach 5c Trumpet Mouthpiece Specs And Review

Today we are going to take a look at the Bach 5c trumpet mouthpiece specs, how it plays and some other interesting observations.

One thing is for sure though, at the time of writing this article the pricing was shockingly low on Amazon! You can click here  to check current pricing.

Ok so, so let’s jump in and take a closer look at the Bach 5c mouthpiece.

click image to check pricing at Amazon

Bach 5c Trumpet Mouthpiece Specs

Bach 5c specs:

  • Good all-around mouthpiece
  • Cup diameter 16.25 mm
  • Medium cup
  • Rim shape is a bit rounded toward the inside and outside
  • Fairly flat rim
  • Backbore 10
  • Silver plated

General Info About The Bach 5c Mouthpiece

Bach mouthpieces are one of the most well-known brass mouthpieces on the market. The bBach company has high standards and produce mouthpieces with consistent quality.

The 7c mouthpiece is perhaps the most common one, of all Bach’s mouthpieces, which is a bit strange since there are so many to choose from, and the 5c is a better mouthpiece in my opinion. Well, perhaps I should point out that it is of course also a matter of taste…

…we are all different, with different teeth, lips and face structures, after all.

With that in mind, in this article I’m going to talk about the facts  about the Bach 5c, as well  my personal preferences and opinions, where I feel that those are needed.

Bach 5c – The Sound

The mouthpiece produces a nice, warm and full trumpet sound. This is because the cup is a good sized Bach “c-cup”. It’s not so big that we have to have a very robust embouchure in order to play it, yet it is not so small that the sound becomes thin.

I actually like the size of the cup on this mouthpiece. It’s not as deep as the 7c cup, but it’s a bit deeper than on the 3c.

Bach 5c – Where to use it

It’s a very good all-around mouthpiece, and thus you can use it alsmost everywhere.

  • Classical music ==> perfect
  • Solo pieces ==> perfect
  • Jazz ==> perfect
  • Hymns in church ==> perfect
  • Pop songs ==> very good
  • Screaming high notes and lead playing ==> good, but not optimal

The depth of the cup, being a c-cup, and the size of the cup makes it a good all-around trumpet mouthpiece that you can play in whatever setting you want.

It is a perfect mouthpiece for classical music or for playing smooth ballads or jazz improvisations. It’s also good for marching band or for example brass quintet playing…

…or, for playing a beautiful trumpet solo in church.

That said, if your main job is to produce really sharp and cutting high notes in a big band, you would perhaps be better off with a a mouthpiece that is slightly shallower.

Don’t get me wrong, the cup on the 5c is not so deep that high notes are difficult, but if you need that cutting edge “lead-sound”, you might want to check out my article “Top 4 best mouthpieces for high notes

Feel On The Chops

The 5c feels really good on the chops. One reason for this is that the outside of the rim is slightly rounded, making your lips grip the rim in a comfortable way. This helps with control, as in hitting the notes more securely…

…also, a lot of trumpet players find that the flexibility is greatly increased by having a rim like this.

High register

It’s easy to play!

As the rim diameter on the 5c is one of those “middle of the road” sizes, most people find the high register easy to play with it…

…and because the cup on the 5c is not as deep as on the 7c, well, there’s one more reason most people find the 5c easier to play. I myself, being one of them.

Even though the cup is slightly shallower than on the 7c, it is still a “c-cup”, and by no means a “shallow” mouthpiece, so again, if you are looking for a specialized screaming lead trumpet mouthpiece, then the 5c is probably not for you.

Still, the high register is very easy to play on the 5c.

A big thumbs up in this department as well.

…moving on!

Agility (flexibility and ease of moving around)

Oh yes, this is where the 5c really shines. As I prematurely mentioned, the rim shape, in combination with slightly shallower cup than on the 7c, makes the mouthpiece really easy to play.

And by easy I mean it is so easy to move around, jumping from note to note and going up and down from low to high and high to low.

I could see how a trumpeter playing jazz would just love this, as he would want a mouthpiece that lets him play fast passages with notes that just “pops” out.

Very good indeed. I will give it full score here and a big thumbs up.

Bach 5c responsiveness

It’s good. The notes speak easily on the 5c. I suspect the rim shape helps with this as well as it might tend to bring the chops just slightly more forward, in my opinion.

There is no problems making the notes speak, even at very soft volumes. A big thumbs up!


No problems here. Not surprising really, since high quality mouthpieces nowadays have a backbore, throat and cup size that matches, work in harmony and rarely present any intonation problems.

Now, if you were to buy one of those cheap mouthpiece brands for under 10 bucks, it would be another story. So don’t do that!

Bach 5c Pricing (compared to quality)

With the Bach 5c you get a very high quality mouthpiece for a very good price. Seriously, at the time of writing this article the price was actually shockingly low…

…you can click here now to check current pricing at Amazon.

So, when it comes to price to quality ratio, I will give the Bach 5c trumpet mouthpiece a 10+

Final Rating:  9.1 / 10

Ok there you have it, when taking everything into account and when weighing it against the current pricing I have to say that the Bach 5c trumpet mouthpiece is a very good mouthpiece for all-around use. I will give it a final score of 9.1 out of 10.

How Does It Compare To Other Mouthpieces

5c vs 3c

Well, according to the specs the 3c has a cup diameter of 16,30 mm, so it’s 0,05 mm bigger, which is almost no difference there. The 3c is shallower though and the rim shape is also different on the 3c.

The rim edge is more rounded on the 5c, and one thing to note here is that this is something that might make the cup size FEEL different between two mouthpieces that otherwise have almost the same cup diameter…

…simply because our lips “grip” mouthpieces a bit differently depending on the shape of the rim.

5c vs 7c

The 7c is a bit deeper, but it is not by much though. Also the outside rim is even more rounded on the 7c than on the 5c. When it comes to cup diameter the 7c are marketed and sold as 16,20 mm. So again there is a difference of only 0,05 mm here. Not much at all.

In my opinion, the 5c is a better mouthpiece than the 7c.

5c vs 1 1/2 c

Well, the 1 1/2 c has a bigger cup. It is marketed and sold as a 17.00 mm cup. The shape of the rim is pretty similar on the Bach 1 1/2 c however I would say that the 5c is slightly more rounded.

Bach 5c Trumpet Mouthpiece
Final Words

So, is the mouthpiece a good choice for you?

Well, if you are looking for a high quality, all-around trumpet mouthpiece with a comfortable rim that is not too big and not too small, then yes, you should definitely give it a try. It is easy to play, produces a nice sound and it feels very comfortable on the lips and it is also excellent for endurance..

…what more could we ask for…really?

I hope you found this Bach 5c trumpet mouthpiece review informative. If you have any questions, please don’t hesitate to contact me.

click image to read other real user reviews on Amazon

Some common questions I get about mouthpieces in general

Question: What is the smallest Bach mouthpiece ever made, and have you tried it?

Answer: I think that would be the Bach 20c, with a cup diameter of only 15 mm. No, I have not tried it and I feel no need to, as I already know that I would find it way too small.

Question: Do I have to use a smaller mouthpiece in a piccolo trumpet? I have not started yet, but I am going to buy a piccolo and I’m wondering about mouthpiece sizes.

Answer: You do not HAVE to use a smaller mouthpiece when playing the piccolo, but a lot of trumpeters do go a bit smaller when playing piccolo. You could for example keep the rim diameter the same while choosing a mouthpiece with a slightly shallower cup…

..but, then again, it is not difficult to change between rim diameters either. It just takes a bit of time to get used to, but once you do, it’s no problem.

Just start with your normal mouthpiece and then, later on, you might want to experiment with different mouthpieces.

Some people are afraid of experimenting, but there’s no need to be afraid of that as long as you don’t get obsessed about it. Personally, I try new mouthpieces almost every month, but that’s only because I’m interested and like doing that 🙂

Question: What’s the best trumpet mouthpiece for endurance?

Answer: Well, funny you should ask, because I recently wrote an article called “Best trumpet mouthpiece for endurance“, you might want to check that out.

Question: I have problems playing low notes on my Bach 1 1/4 c, should I try a bigger mouthpiece?

Answer: You could, however, if you have big problems on a 1 1/4c then it is more likely something in your playing that is off. Take a look at my article How to improve the low register on trumpet. In that article I talk about some common low note causes and how to fix them.

Question: Are cornet mouthpieces the same as trumpet mouthpieces?

Answer: Yes and no. A trumpet mouthpiece won’t fit in a cornet and the same is true the other way around. When it comes to the rest of the mouthpiece, the mouthpiece specs, that you can see on online brass stores, should be the same though.

Alright, that will be it for now. I might come back and make updates on this article, as I sometimes do with my posts…

..thanks for reading, and keep practicing!


4 thoughts on “Bach 5c Trumpet Mouthpiece Specs – REVIEW And Why It’s Good”

  1. Thank you so much for the information.
    After playing several mouthpieces,
    I came back to the Bach 5C.
    It does help me with endurance like you said. I also thought it produces a warm sound. I have only been playing for about 5 years. I played saxophone all my life since I was 8 yrs. old. I wanted to play trumpet but my parents wanted me to play saxophone.
    So hear I am at 62 yrs old playing trumpet ,my 1st love.
    I’ve had some of my professional buddies help me get started and have made rapid progress.
    I would like to be able to use High C above the staff in everyday playing.
    So I know I’ll probably have to play a little higher than that in practice.
    Any helpful advice would much appreciated.
    Thanks again for confirming what I have been thinking about the 5c.

  2. At 73 years old, during the beginning of the 2020 COVID-19 shutdown, I decided to see if I could achieve a desire that I’ve had since I was 13 years old. Learn to play the trumpet.

    I borrowed an old cornet from a friend to see if I could even develop an embrasure and learn to read music. It was challenging but not impossible. I blew on that cornet for the first time on April 19, 2020. I received my own trumpet on August 9, 2020.

    The silver Bb came with a Bach type 3c mouthpiece. I practice every day. I started at 4 to 5, 20 minute session a day. Eventually I reached two sessions of 40 to 50 minutes each.

    I should point out that my “Cornet Friend”, Shane, has been giving me encouragement and pointers along the way as well as two jazz trumpeters who are old friends. (77 & 83) All of this is via telephone due to the pandemic.

    I have been struggling for weeks trying to consistently get to D above middle C. Other than when I am at the beginning of my warm up and running the fingering chart, I have trouble. I will bust my chops at about 35 to 45 minutes and have to stop. I return a few hours later to add another 30 to 40 minutes to the day’s practice.

    After reading your blog about the Bach 5c, I drank your cool-aid and ordered a 5c from Amazon. It arrived today. EURIKA !!!!! I was immediately able to reach G at the top of the staff. All of the tunes and exercises that I have been struggling with became easy and comfortable.

    Shane has told me that I am far ahead of most middle-school students at this point. I have advise him that every day people younger than me are dyeing of OLD AGE! 😉

    I’m hooked on this trumpet and the learning of how to read music. I make progress and have successes every day. No more waiting around for an open grave to be available. 😉

    Your advice has made a major difference in my progress. I will be perusing your blog for moor gems.

    Thanks for sharing your passion with the world and me.

    Ed Coyle

  3. Hi, Mr. Slotte
    Really this was very informative. I got started using a 3C Bach and latter change to a Curry 3C. I feel mofre comfortable in the Curry version than in the Bach. I wonder if I would feel the same using a Curry 5c? If I want shallower cups I can go on Curry with the same rim diameter and shape but with M or Z cups which are shallower. Do you think I should try first the Bach 5C?


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