Vintage Detail

Boosey & Hawkes 5G (Bach/Conn Reference)

Tenor Trombonepost-war⚠ Unverified

Core Specs

Shank Typelarge
Rim Diameter25.5mm
Cup Depthdeep
Throat Diameter7.01mm
Backbore#429

Archive Context

Compatible With
0.547"
Confidencelow
Confirmations0

Manufacturer Notes

Reviewable reference entry for players who own or search for a Boosey & Hawkes-stamped 5G. Current research does not confirm an official B&H catalogue model named 5G; 5G is best treated as a Bach/Conn-style large-bore tenor trombone size. Reference specs: 25.50 mm rim, deep cup, medium-wide semi-flat rim concept, 0.276 inch / 7.01 mm throat, #429 backbore, and large shank. A modern Conn 88H normally accepts a standard large shank 5G-style mouthpiece. Older Conn 88H instruments may use the Remington/Conn taper, so a Conn/Remington shank may seat better than a standard large shank.

Known Variants

5G reference sizeBach-style 5GConn 5GConn/Remington shank contextuser-reported B&H 5G

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Rate This Piece

Physical Feel
ResistanceBack-pressure & support
5
1 — Free-blowingRestrictive — 10
Rim ComfortHow kind is it on your chops?
5
1 — UncomfortableVery comfortable — 10
Rim BiteSharpness of the rim edge
5
1 — Very round / forgivingVery sharp / precise — 10
Tonal Character
BrightnessOverall spectral colour
5
1 — Dark & warmBright & piercing — 10
Tone FocusCore vs. spread sound
5
1 — Spread / diffuseCentred / laser — 10
Playability
ArticulationClarity & crispness of attack
5
1 — Blurry / sluggishCrisp & immediate — 10
FlexibilityEase of slurs & pitch bending
5
1 — Rigid / stiffFluid & flexible — 10
Stamina
EnduranceHow long before fatigue sets in?
5
1 — Tires quicklyPlays all night — 10
0/5,000

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