SKU: 84697250177

Robert Tucci Sound Energy Euphonium Mouthpiece

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Description

Robert Tucci Sound Energy Euphonium MouthpieceThis is a set of euphonium mouthpieces designed and produced by Robert Tucci in Germany. Older versions of these sizes have sold under the Perantucci brand in the past. These are the updated versions. Specs Cup Diameter Bore Rim Width Notes 5C 26. 00 mm 7. 32 mm 6. 75 mm Cup volume, throat and backbore balanced for a rich and resonant sound with a clear center. Unique wide cup design. 6C 25. 00 mm 7. 15 mm 7. 00 mm Rich euphonium tonal character with

This is a set of euphonium mouthpieces designed and produced by Robert Tucci in Germany.  Older versions of these sizes have sold under the Perantucci brand in the past.  These are the updated versions.

Specs

  Cup Diameter Bore Rim Width Notes
5C 26.00 mm 7.32 mm 6.75 mm Cup volume, throat and backbore balanced for a rich and resonant sound with a clear center.
Unique wide cup design.
6C 25.00 mm 7.15 mm 7.00 mm Rich euphonium tonal character with clear response in all registers., Versatile high-volume mouthpiece ideal for solo and ensemble performance.  Long throat with flat taper backbore.
7C 26.00 mm 7.50 mm 6.75 mm A truly large euphonium mouthpiece
enable great volume and depth of tone.
Ideal for strong players performing in large ensembles.  Open backbore.

 

From Robert Tucci:

Many thanks for the comment on the RT Euphonium mouthpieces.  At the
time we started with the 4AL, the SM 3.5 and another base model we had. 
At the time, both the 4AL and the 51D were in the computer files at the
factory. When Besson was still Besson they had the 4AL made there, also
some of the other DW models.  The 51D based mouthpiece had been made for
Willi K. in fact, supplies with the TA-2900 and other Euphoniums.  In
short, the base models were programmed and could be modified as
required. For that purpose I had an excellent US Army Band Euphonium
player, Fred Meyer, at the factory for two days.  Fred had both a
Willson and a Yamaha, I had my beautiful vintage Hirsbrunner.  Later and
together with Mark Carter we had David Thorton and Michael Howley, two
top UK Euphonium artists at the factory, again for two days each. 
Michael had a rather good old 4AL so we had a realistic basis for
comparison.  The rest is history: CM sold many PT Euphonium mouthpieces,
we sold them here as well and Mark got things moving in the UK.  This
was all several years ago, dates back to 2009-2010.  The PT / now RT-6C
has been the best seller.  Looking and listening it seems that most artist Euphonium
mouthpieces tend toward "heavy(ier) shell" designs. One of our best artists in
China uses the 6C with an off-the-shell booster. 

Shipping Notes
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Exchange/Return Notes
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SKU: 84697250177

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Lee H
Cuba, US
★★★★★ 4
Durable but to hard to chew to make squeak.
Size: 2.5" (Small Dog), Color: Pink+Red+Yellow
Nice and squeaky but a little too hard for my 25# Cockers to chew on...may be the spikes.
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Reviewed in the United States on October 10, 2025
L
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Lori
Pawtucket, US
★★★★★ 5
Used for tense muscles
Size: 3.5" (Medium/Large Dog), Color: Set of 6
I don’t use these as dog toys. I use them as therapy balls. You place it on an area of tension and lean on it. Works like a charm to take pain away!
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Reviewed in the United States on March 19, 2026
D
Verified Purchase
Debbie
Dallas, US
★★★★★ 5
Good quality
Size: 3.5" (Medium/Large Dog), Color: Set of 6
The dogs absolutely love the way they bounce and squeak
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Reviewed in the United States on April 1, 2026
M
Verified Purchase
Michael Brown
Natrona Heights, US
★★★★★ 5
An absolute must have in our house
Size: 2.5" (Small Dog), Color: Blue+Orange+Green
We have a couple of miniature Aussies. One is more of a snuggler, but the other is addicted to playing fetch and these balls are her favorite! Perfect amount of bounce and squeak. Perfect size for her mouth and a great value. Very durable too.
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Reviewed in the United States on May 4, 2026
S
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SoFlaGRAM
Carnegie, US
★★★★★ 5
loud but in a good way
Size: 4.5"
Love these crazy loud squeeky balls. I bought two a bit too big but the dogs still love them. Yes, they will drive you insane but the dogs love them so much it's worth it watching the pups enjoy the balls. They are strong and safe as long as they aren't too small for your dogs mouth.
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Reviewed in the United States on May 2, 2026

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