John Packer · Sterling (professional)

John Packer JP374 / JP374T Sterling

Name: John Packer JP374 / JP374T Sterling
Brand: John Packer

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: contract — John Packer’s own design, built by Ovis.

John Packer Ltd (UK) 'British Design'; the JP374 carries the trademark STERLING leadpipe (JP owns Sterling). Almost certainly Asian-made (Ovis per trade knowledge) — a JP-branded sibling to the standalone Sterling Virtuoso. Country not stated.

Specifications

Model	JP374 / JP374T Sterling
Line	Sterling (professional)
Tier	Professional
Price band	$$$
Pitch	Bb
Valves	4 — 3+1, bottom-sprung, compensating
Compensating	Yes
Bell	305 mm · 80:20 brass (high-grade)
Leadpipe	trademark Sterling design
Valves material	bottom-sprung
Finishes	lacquer, silver plate
Options	main tuning slide trigger (JP374T)
Variants	JP374T (trigger, ~$5,856)

Manufacturer's specification page ↗

Some specifications are still pending verification: bore.

Specs verified July 6, 2026.

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