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1.25 GW Helios Trumpet Mouthpiece Rim Diameter 17.09mm, .673 inches

Size Guide

$ 171.00

This is a very popular rim diameter for advanced players. Designed to project a powerful sound with lots of core, but still retain some shimmer. A good choice for orchestra, bands, and large ensembles.

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Mouthpiece Size Chart
Trumpet Rim mm Rim in
1 GW 17.29 0.681
1.25 GW 17.09 0.673
1.5 GW 16.89 0.665
3 GW 16.5 0.653
5 GW 16.4 0.646
7 GW 16.35 0.64
10 GW 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 0.157 1.025 0.157
 
Small Bore Trombone  Rim Diameter  Throat Cup Depth Rim Width
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
GWC-100 1 0.23 0.945 0.265
GWC-101 1.01 0.232 0.925 0.275
Harry Watters 1 0.259 0.975 0.277

 

Tenor Trombone Rim Diameter  Throat Cup Depth Rim Width
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
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
Ron Wilkins 1.063 0.282 1.002 0.255

 

Bass Trombone  Rim Diameter  Throat Cup Depth Rim Width
Adriano 1.091 0.3 1.141 0.271
Mark-1 1.1 0.295 1.191 0.253
Karif 1.135 0.295 1.275 0.25
Chinook 1.14 0.302 1.295 0.25
Don Harwood 1.14 0.312 1.325 0.237
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 1.265 0.319 1.345 0.235

 

Tuba

Inner Rim Diameter

Throat

Cup Depth

Use

Bayamo

1.320

.332

Deep Funnel

Large ensemble, dark rich tone

Caver

1.320

.318

Medium Deep Cup

Large ensemble, clearer upper overtones

Taku

1.295

.325

Deep Funnel

Large ensemble, dark rich tone

Williwaw

1.295

.325

Deep Funnel tighter back bore than Taku

Large ensemble purer upper over tones

Diablo

1.295

.318

Medium Depth   Funnel

A work horse that can do it all equally well similar to Helleberg 7 slightly larger inner rim

Matanuska

1.260

.318

Deep Funnel

Well rounded mouthpiece simmilar to Helleberg 7b slightly larger inner rim great for solos, and chamber ensemble

Bora

1.260

.318

Shallow Cup

Great for solos and quintet

Churada

1.255

.318

Very Shallow Cup

Great for extended high playing an solos

Alan Baer MMVI and Original CC

1.295

.321

Medium Funnel

Great for orchestral playing and large ensembles

Alan Baer MMVI and Original F

1.295

.295

Shallow Cup

Great for orchestral and solo playing

Alan Baer Beltane F

1.295

.295

Shallow Cup wide mouth of throat

Great for quintet and chamber groups

Tephra

1.295

.295

Medium Cup Depth

Best for Chamber group and all a very versatile piece

Alan Baer MMX F

1.295

.295

Very shallow F Cup

Great for solo playing

Roland Szentpali CC

1.320

.332

Very Deep Funnel Cup

Best in a large ensemble on bombastic low excerpts

Roland Szentpali F

1.295

.295

Medium Shallow Cup 

Best in a large ensemble playing bombastic F tuba orchestral parts

Kronos

1.265

.318

Medium Deep Cup

Very Versatile Mouthpiece based on Helleberg 7B

Jon Sass

1.295

.318

Medium Deep Cup

Very Versatile mouthpiece great for all playing needs

Bostan Brass Sam Pilafian

1.295

.321

Medium Deep Cup

Great fro Quintet, solos, and small ensembles