Our Mouthpiece Range Expands With the LS Rim

Click here to go to the store Click here to go to the rims ordering page

We’ve added a new rim model to our offerings. The LS rim is a copy of the Laskey rim. Our goal was to make it easy for players who are accustomed to Laskey rims to try different cups, ours and those of other makers.

The LS is a medium width rim, with a rounded contour.  The LS75 inner edge and crown are virtually identical to our 7S rim, which is itself a copy of a Bach 7S. The only significant difference is in the wider contour on the outside of the 7S. This would not be felt by anyone except those using a very pronounced einsetzen embouchure.

We’ve made our rims in the same sizes as Laskey: 17 to 18.5mm, in .25mm steps and marked them with Laskey’s numbering system.  Our measurements are slightly smaller because we measure all our rims at .050″ down from the crown. Laskey’s are measured slightly higher (.035″) so they measure a little wider. Models 70 to 775 fit our standard cups and any cup with a 750-36 Giardinelli-compatible thread. The 80-85 rims fit our metric series and any PHC cup.

Visit our Osmun Mouthpieces Pages to see all the cups and rims we offer.

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The Best Stopping Mute?


The Powerstopf combines the best of wooden and metal mutes.

When the part calls for stopped horn, horn players have a decision to make. Obviously, you can stop the horn with your hand. It’s always there when you need it and you never embarrass yourself by dropping it on the floor. There are some problems, though. You have to play everything on the F horn (stopping raises the pitch 1/2 step on the F horn and 3/4 steps on the Bb) and it’s very hard to get any volume in the lower register. And some players’ hands just don’t work well for stopping. So, a good stopping mute can be a great addition to your arsenal.

One of the best stopping mutes we’ve come across is the Powerstopf. Made in the Netherlands, the Powerstopf has several features that make it stand out. The wooden cone takes a lot of edge out of the sound and makes it sound much more like true hand stopping. The rubber seal helps the mute stay put and does a good job of sealing the bell. Maybe the biggest advantage is that it works on the Bb horn so it’s much more secure.

Here’s a Youtube clip of Richard Burdick demonstrating the Powerstopf:

We’ve got Powerstopfs in stock so please check them out at osmun.com

How to Choose a New Mouthpiece

It never ceases to amaze me when I see a horn player come into the shop with a new, very expensive instrument, who’s playing it with a mouthpiece that someone gave him or her in high school or a teacher fished out of his junk drawer. It seems almost like an afterthought. It shouldn’t be. The mouthpiece is the interface between the player and their instrument and choosing the right one can make a dramatic difference.

Choosing a new mouthpiece can be a daunting task. But, it doesn’t have to be. Every mouthpiece needs to meet three requirements: 1. It has to suit the player, 2. It has to suit the horn, 3. It has to produce the desired sound and response.

The first step is to find the right rim. It should be comfortable and allow clean articulation and a smooth legato. The inner diameter of the rim can vary to suit thick or thin lips or to accommodate uneven teeth. A wider ID (inner diameter) allows more of the lip to vibrate and can help a stronger player play with greater volume and flexibility. The contour of the rim can be wider or narrower, flatter or more rounded, or have a reverse peak. Generally, wider flatter rims provide better endurance and thinner, more rounded rims allow greater flexibility.

Next, the cup and throat should compliment the instrument. The key here is the venturi, the narrowest point at the beginning of the mouthpipe. Large bell horns like Conn 8D’s have a slower overall taper and the venturi is quite small. Medium bell instruments, like Alexanders, start larger and have a much quicker taper. So, what’s needed is balance. 8D’s work well with large throat mouthpieces that balance the small venturi. Alex’s need smaller throats to perform well. Generally, mouthpiece throats in the 10-16 range work well for most people.

The shape of the cup affects sound quality and response. More curved, cup shaped side walls make a brighter sound and work well with both large bore instruments and some smaller horns, like Alex’s, Paxmans, and Yamahas. Deeper, straighter sided cups have a darker, less focused sound quality and work well with Geyer-style instruments. Shallower, more cup shaped mouthpieces favor higher harmonics, deeper, straight sided mouthpiece favor the lower register.

There just isn’t one mouthpiece that will work for all players, all instruments, all music. When you settle on a mouthpiece be aware of its basic design and dimensions. Then, if you want to make a change, you will be starting from a known quantity and you can be systematic in your search. No mouthpiece is perfect, the question is: “Does this mouthpiece help me move in the direction I want to go?”

Financing Your New Horn

We’re often asked by customers if we offer financing. The best way to finance a large purchase is with PayPal or a credit card.  PayPal offers six months of no interest financing on purchases over $99. You can choose PayPal financing on our website during the checkout process.  For longer terms, credit cards are the best option. Some cards offer interest-free financing for up to twenty-one months. Sites like Nerdwallet (http://www.nerdwallet.com/the-best-credit-cards) can help you find the best card for your needs and circumstances.

Our Holiday Schedule

Osmun Music will close on December 24th at 4pm and reopen on Monday, December 29, at 10am so that our staff can enjoy a long holiday weekend. We’ll close at 2pm on December 31st and reopen on January 2nd at 10am. The weeks around the holidays are very busy so, if you need repair work during that period, please schedule it as soon as you can.  (Click here to schedule an appointment online.)

All of us at Osmun Music wish our customers and friends a very Merry Christmas, Happy Holidays, and a safe and prosperous New Year.

Getting Ready For the Holidays

Choosing gifts for the brass players on your holiday list can be tricky. You want to support and encourage them, but it’s difficult to pick out things will be appreciated. Here are some ideas for presents that will appeal across a wide spectrum.

  • The Maslet horn straight mute is a versatile all-around choice.A Really Good Mute. A professional quality straight mute is a basic item for every trumpet, horn, and trombone player. Horn players need a good fibre mute. Aluminum mutes are standard for trumpet and trombone. If your brass player is using a plastic mute or the old red-and-white fibre kind, a new mute will be welcome.
  • Silent Brass fells and sounds like a concert hall.Silent Brass/ Practice mutes. These specialized mutes for practicing allow a player to warm up or do basic maintenance playing without disturbing people in the next room.
  • Combo tuner-metronomes pack a lot of punch into a small package.Electronic Tuners and Metronomes. Rhythm and pitch are the building blocks of performance. Everybody needs a tuner.
  • Solid, stable, and hold its adjustmentStands and Lights. If your brass player is using a wire stand at home you can bet he or she will appreciate a solid, strong, orchestral stand that can support a heavy load of study materials. A good stand light can be a life-saver in a dimly lit room or pit.
  •  About Playing and PlayersBooks. Books about playing, players, and performance broaden horizons.

Made for Marking MusicStocking Stuffers. Small, inexpensive, and guaranteed to be appreciated:

E. Schmid Rims for Screw Rim Mouthpieces


As Engelbert Schmid’s mouthpieces have become increasingly popular, a lot of our customers have asked for Schmid rims to use with Osmun cups. so, we now have two Engelbert Schmid copy rims. All four standard sizes are available as metric rims and the smaller sizes (17, 17.5mm)  are made for standard (Giardinelli thread) cups as well. Here are the rim sizes for Schmid’s mouthpieces:

  • 17mm-Schmid models 4 thru 6.5
  • 17.5mm-Schmid models 7 thru 9.5
  • 18mm- Schmid models 10 thru 12.5
  • 18.5-Schmid models 13 thru 13.5

We also have Schmid Digital rims in 17.5 and 18mm, as used on Schmid Digital mouthpiece models 1 thru 3.5, available as metric rims (fits our metric and Paxman Halstead Chidell cups).

You can see our full range of cups and rims on our mouthpiece page at osmun.com.