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| Trumpet | Rim mm | Rim in |
| 1 GW | 17.29 | 0.681 |
| David Hickman | 17.25 | 0.68 |
| 1.25 GW | 17.09 | 0.673 |
| 1.5 GW | 16.89 | 0.665 |
| 3 GW | 16.58 | 0.653 |
| 5 GW | 16.4 | 0.646 |
| 7 GW | 16.35 | 0.64 |
| Gill Kaupp | 16.00 | 0.63 |
| 10 GW | 16 | 0.63 |
| Lead J,S,Z | 16 | 0.63 |
| French Horn | Rim Diameter | Throat | Cup Depth | Rim Width |
| FH-5 | 0.668 | 0.228 | 1.155 | 0.135 |
| FH-1 | 0.678 | 0.165 | 0.787 | 0.152 |
| FH-1.5 | 0.678 | 0.185 | 0.787 | 0.152 |
| FH-2.5 | 0.679 | 0.175 | 0.995 | 0.152 |
| FH-2.75 | 0.679 | 0.185 | 0.995 | 0.152 |
| FH-200 | 0.685 | 0.18 | 0.985 | 0.15 |
| FH-2 | 0.685 | 0.183 | 1.025 | 0.151 |
| FH-3 | 0.7 | 0.173 | 1.05 | 0.142 |
| FH-3.25 | 0.7 | 0.185 | 1.05 | 0.142 |
| FH 3.5 | 0.7 | 0.173 | 1.01 | 0.14 |
| FH-3.75 | 0.7 | 0.185 | 1.01 | 0.14 |
| FH-4.25 | 0.705 | 0.173 | 1.045 | 0.138 |
| FH-4.5 | 0.705 | 0.185 | 1.045 | 0.138 |
| FH-310 | 0.705 | 0.182 | 1.2 | 0.156 |
| Small Bore Trombone | Rim Diameter | Throat | Cup Depth | Rim Width |
| Almont | 0.955 | 0.23 | 0.87 | 0.305 |
| Orchestral Alto | 1.022 | .215 | 0.905 | 0.262 |
| Reggie Young | 0.954 | 0.236 | 1.035 | 0.275 |
| GWC-958 | 0.958 | 0.232 | .884 | 0.272 |
| Bacchus | 0.992 | 0.231 | 0.83 | 0.255 |
| Chocolatero | 0.96 | 0.231 | 0.895 | 0.275 |
| Barber | 0.975 | 0.231 | 0.935 | 0.268 |
| Chubasco | 0.985 | 0.231 | 0.965 | 0.257 |
| Ron Wilkins | 0.997 | 0.232 | 0.945 | 0.262 |
| GWC-100 | 1 | 0.23 | 0.945 | 0.265 |
| Harry Watters | 1 | 0.259 | 0.975 | 0.277 |
| GWC-101 | 1.01 | 0.232 | 0.925 | 0.275 |
| Joseph Jefferson | 1.012 | 0.263 | 1.15 | 0.261 |
| Tenor/Euphonium | Rim Diameter | Throat | Cup Depth | Rim Width |
| Hiram Diaz | .9896 | 0.278 | 1.303 | 0.282 |
| NB-100 | 1 | 0.278 | 1.005 | 0.25 |
| GW-100 | 1 | 0.282 | 1.175 | 0.25 |
| Sonny Ausman | 1.008 | 0.264 | 1.15 | 0.285 |
| Euros | 1.008 | 0.282 | 1.09 | 0.242 |
| Boreas | 1.008 | 0.283 | 1.115 | 0.242 |
| NB-101 | 1.01 | 0.276 | 1.005 | 0.25 |
| GW-101 | 1.01 | 0.276 | 1.18 | 0.25 |
| Seiji Nakazawa | 1.015 | 0.234 | 1.005 | 0.25 |
| Kadja | 1.012 | 0.285 | 1.245 | 0.245 |
| SA-100 | 1.02 | 0.26 | 1.14 | 0.235 |
| NB-102 | 1.02 | 0.276 | 1.005 | 0.25 |
| GW-102 | 1.02 | 0.281 | 1.185 | 0.25 |
| DJNV | 1.02 | 0.272 | 1.029 | 0.265 |
| Carbonaria | 1.021 | 0.3 | 1.275 | 0.265 |
| Joe Jefferson | 1.022 | 0.263 | 1.24 | 0.263 |
| E-1 | 1.027 | 0.281 | 1.004 | 0.27 |
| EXL | 1.027 | 0.290 | 1.004 | 0.27 |
| GW-103 | 1.03 | 0.284 | 1.185 | 0.25 |
| DHWA-E | 1.032 | 0.288 | 1.255 | 0.272 |
| DHWA-S | 1.032 | 0.288 | 1.195 | 0.272 |
| TZ-103 | 1.035 | 0.279 | 1.025 | 0.235 |
| E-2 | 1.045 | 0.28 | 1.035 | 0.255 |
| Ruach | 1.06 | 0.281 | 1.18 | 0.243 |
| Ron Wilkins | 1.063 | 0.282 | 1.002 | 0.255 |
| Bass Trombone | Rim Diameter | Throat | Cup Depth | Rim Width |
| Adriano | 1.0958 | 0.302 | 1.445 | 0.269 |
| Mark-1 | 1.0958 | 0.295 | 1.268 | 0.270 |
| Karif | 1.135 | 0.302 | 1.275 | 0.25 |
| V-Max | 1.12 | 0.321 | 1.20 | 0.25 |
| Daniel Morris | 1.12 | .312 | 1.36 | 0.235 |
| Chinook | 1.14 | 0.304 | 1.295 | 0.25 |
| Don Harwood | 1.14 | 0.312 | 1.325 | 0.237 |
| Scirocco | 1.112 | 0.302 | 1.27 | 0.25 |
| Bob Sanders | 1.14 | 0.319 | 1.295 | 0.25 |
| NY-S | 1.141 | 0.303 | 1.09 | 0.235 |
| NY-O | 1.141 | 0.312 | 1.155 | 0.235 |
| DH-100 | 1.15 | 0.31 | 1.35 | 0.245 |
| D.Mirvil 5 | 1.143 | 0.312 | 1.35 | 0.210 |
| Nor'Easter | 1.144 | 0.319 | 1.345 | 0.235 |
| Bob Sanders Contra | 1.22 | 0.321 | 1.42 | 0.251 |
|
Tuba |
Inner Rim Diameter |
Throat |
Cup Depth |
Use |
|
1.320 |
.332 |
Deep Funnel |
Large ensemble, dark rich tone |
|
|
1.320 |
.318 |
Medium Deep Cup |
Large ensemble, clearer upper overtones |
|
|
1.295 |
.325 |
Deep Funnel |
Large ensemble, dark rich tone |
|
|
1.280 |
.325 |
Deep Funnel tighter back bore than Taku |
Large ensemble purer upper over tones |
|
|
1.295 |
.318 |
Medium Depth Funnel |
A work horse that can do it all equally well similar to Helleberg 7 slightly larger inner rim |
|
|
1.260 |
.318 |
Deep Funnel |
Well rounded mouthpiece simmilar to Helleberg 7b slightly larger inner rim great for solos, and chamber ensemble |
|
|
1.255 |
.318 |
Shallow Cup |
Great for solos and quintet |
|
|
1.255 |
.318 |
Very Shallow Cup |
Great for extended high playing an solos |
|
|
1.268 |
.305 |
Medium Shallow Cup |
Great for orchestral solo F tuba |
|
|
1.290 |
.335 |
Medium Deep Funnel Cup |
Awesome for orchestral CC tuba parts |
|
| Alessandro Fossi Cimbasso | 1.267 | .295 | Shallow cup | Perfect Italian Cimbasso Piece |
|
1.295 |
.321 |
Medium Funnel |
Great for orchestral playing and large ensembles |
|
|
1.295 |
.295 |
Shallow Cup |
Great for orchestral and solo playing |
|
|
1.295 |
.295 |
Shallow Cup wide mouth of throat |
Great for quintet and chamber groups |
|
|
1.295 |
.295 |
Medium Cup Depth |
Best for Chamber group and all a very versatile piece |
|
|
1.295 |
.295 |
Very shallow F Cup |
Great for solo playing |
|
|
1.310 |
.321 |
Deep Funnel Cup |
Great for orchestral work |
|
|
1.320 |
.332 |
Very Deep Funnel Cup |
Great for projection and clarity |
|
|
1.320 |
.332 |
Very Deep Funnel Cup |
Best in a large ensemble on bombastic low excerpts |
|
|
1.295 |
.295 |
Medium Shallow Cup |
Best in a large ensemble playing bombastic F tuba orchestral parts |
|
|
1.265 |
.316 |
Medium Deep Cup |
Very Versatile Mouthpiece based on Helleberg 7B |
|
|
1.295 |
.318 |
Medium Deep Cup |
Very Versatile mouthpiece great for all playing needs |
|
|
1.295 |
.321 |
Medium Deep Cup |
Great for Quintet, solos, and small ensembles |
|
| Jon Gross | 1.308 | .295 | Shallow | Punches out the bass line! |
| Hawk | 1.271 | .295 | Medium Cup | Fantastic Solo Tuba |
| Tempest | 1.289 | .300 | Medium Deep |
Do all Mouthpiece |
| TubaRed | 1.284 | .300 | Medium | Powerful sousaphone mouthpiece |
| Chris Hardy | 1.295 | .295-.318 | Contra and Bass tuba | Medium heavy weight Design |
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We carefully pack every mouthpiece to ensure it arrives in perfect condition. Orders are processed within 1–2 business days and shipped with tracking provided once dispatched.
If you're not completely satisfied, returns are accepted within 14 days of delivery. Items must be unused and in original condition.
For any shipping or return inquiries, please contact our support team — we’re happy to help. CONTACT US
Driven by a deep passion to enhance response, articulation, and overall playing ease, Ivan Giddings channeled his extensive understanding of brass performance into innovating mouthpiece design. Starting with just an idea to create better mouthpieces, his relentless drive led to the development of truly unique designs that prioritize superior playability and sound.
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