What tubes does the Ceriatone Ots Bm 50W use?

The Ceriatone Ots Bm 50W uses 3× ECC83 preamp tubes and 2× EL34 power tubes.

When was the Ceriatone Ots Bm 50W produced?

The Ceriatone Ots Bm 50W was produced 2005–present.

Ceriatone Ots Bm 50W preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

Ceriatone's OTS BM 50W is a British Master 50-watt variant of the OTS series, built in Malaysia with hand-selected components. It combines OTS preamp voicing with a British Master power section for versatile British crunch.

Years produced: 2005–present
Made in: Malaysia
Wattage: 50W
Channels: 2
Preamp tubes: 3× ECC83
Power tubes: 2× EL34

Tags: british, crunch, boutique.

Schematic-derived preset files for 16 Fractal and Line 6 modelers: Axe-Fx II/XL/XL+, Axe-Fx III, FM3, FM9, and the full Helix family (Floor, LT, Rack, HX Stomp, HX Stomp XL, Native).

Gridleak extracts amp parameters from original circuit schematics using AI vision — component values, gain staging, tone stack topology, tube types — then generates native preset files for every supported modeler. Every extraction is scored 0–100 and the score is published.