Willson · Q Series (Willson Music)

Willson WEUQ90 (Q90)

A compact, value-oriented Willson Q Series compensating euphonium with a 290 mm seamless bell, single 15 mm bore, and receiver or trigger options for different players.

Provenance under review. Reported as China, but the country of manufacture is not yet independently cited — the maker's page does not state one.

Build: under review — how this instrument is sourced (in-house heritage vs. OEM) isn’t yet resolved.

Willson Q Series; the maker page does not state where or by whom the instrument is manufactured. Reported Eastman ties remain under review.

Specifications

ModelWEUQ90
LineQ Series (Willson Music)
TierAdvanced
Price band$$$
PitchBb
Valves4 — 3+1
CompensatingYes
Bore15 mm
Bell290 mm · yellow brass
Leadpipenickel
Valves materialstainless steel
Finisheslacquer, silver plate
Optionstrigger, medium shank

The verdict

The WEUQ90 brings full compensation into a smaller, more attainable Willson Q Series package. Its 290 mm seamless bell and straight 15 mm bore distinguish it from the larger stepped-bore 2950TA. The suffixes describe useful choices: silver plate, medium shank, trigger, or a medium-shank trigger combination—not separate performance tiers.

I classify it as advanced rather than professional because its practical role spans advancing through high-level players and emphasizes value. The exact manufacturing relationship remains unresolved: Willson’s page supplies the instrument specification but does not support the reported Eastman factory story. That uncertainty is worth stating without allowing it to overshadow the Q90’s clear musical specification.

Who it's for
Advancing and serious players seeking an accessible full-compensating Willson design with a manageable bell and a choice of large- or medium-shank setup.
Known for
Easy response, full 3+1 compensation, 290 mm one-piece bell, nickel leadpipe, included backpack case, and unusually clear receiver and trigger variants.
Watch out
The Q90 is not a smaller 2950TA: it uses a single 15 mm bore and different platform. Its reported Eastman manufacturing relationship and country are not substantiated by Willson's page.

Manufacturer's specification page ↗

Some specifications are still pending verification: provenance.oem, provenance.parent.

Specs verified July 13, 2026.

More Willson models · ← All models