Thomann · Superior (compensating)
Thomann EP 904 GP Superior
The EP 902 platform with active tuning control: a 4.66 kg, fully compensating 300 mm euphonium fitted with a standard main-slide trigger and gold-plated trim.
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 | EP 904 GP |
|---|---|
| Line | Superior (compensating) |
| Tier | Intermediate |
| Price band | $$ |
| Pitch | Bb |
| Valves | 4 — 3+1, Périnet, compensating |
| Compensating | Yes |
| Bore | 15–16.8 mm |
| Bell | 300 mm · brass |
| Valves material | stainless steel |
| Weight | 4.66 kg |
| Water keys | 3 |
| Finishes | silver plate (gold-plated trim) |
| Options | main tuning slide trigger (standard), Gold Trim Kit (standard) |
The verdict
The EP 904 changes the EP 902 in one musically important way: a standard main tuning slide trigger lets the left thumb manage pitch while the compensating system handles the underlying low-register combinations. Gold-plated outer slides and trim distinguish the finish, but the 300 mm bell, bore progression, and 4.66 kg weight remain the same.
That makes the buying decision unusually clean. Choose the EP 902 if compensation alone solves the need; choose the 904 if live tuning adjustment is worth the price and added maintenance. Neither model’s retailer page resolves the reported factory attribution, so this guide keeps it under review rather than presenting trade knowledge as fact.
- Who it's for
- Intermediate and advancing players who want the 902's value-focused compensating design but need left-thumb tuning adjustment for exposed or demanding low-register work.
- Known for
- A standard main-slide trigger, gold trim kit, 15.0-to-16.8 mm dual bore, 300 mm bell, full silver plate, and complete mouthpiece-and-gig-bag outfit.
- Watch out
- Its core dimensions and weight are the same as the EP 902, so most of the premium buys the trigger and trim. The exact OEM and manufacturing attribution remain under review.