Mack Brass · Compensating
Mack Brass EU5500
Mack Brass's larger professional-style value euphonium, with a 12.3-inch bell, broad stepped bore, 3+1 compensation, and a main-slide adjustment lever.
Provenance under review. Reported as China, but the country of manufacture is not yet independently cited — the maker's page does not state one.
Specifications
| Model | EU5500 |
|---|---|
| Line | Compensating |
| Tier | Intermediate |
| Price band | $$ |
| Pitch | Bb |
| Valves | 4 — 3+1, compensating |
| Compensating | Yes |
| Bore | 15–16.8 mm |
| Bell | 312 mm · yellow brass |
| Valves material | stainless steel pistons |
| Finishes | silver plate |
| Options | main tuning slide adjustment lever, gold trim, water catcher, case and mouthpiece included |
The verdict
The EU5500 is the larger, more elaborate alternative to Mack’s 642-based EU1150S. Its 12.3-inch bell, .590-to-.661-inch stepped bore, stainless pistons, and main-slide adjustment lever aim at a broad professional-style instrument rather than the lowest possible entry price.
Mack’s current page supplies the missing specifications, but it also lists the key as BBb—almost certainly a catalog error for this euphonium. Confirm that point with the seller before purchase. At this price, comparison should include valve alignment, compression, trigger operation, finish, and service support, not simply the size of the bell.
- Who it's for
- Strong advancing or professional players who want a bigger-bell direct-sale compensator and can evaluate whether its broad sound and ergonomics suit them.
- Known for
- A larger bell than the EU1150S, stainless pistons, nickel slides, tuning adjustment lever, valve water catcher, silver finish, and optional gold trim.
- Watch out
- Mack's page labels the key as BBb even though it markets the instrument as a euphonium; confirm this apparent listing error directly. The JinBao attribution is also trade knowledge, not a published factory statement.