What tubes does the Klemt BS 40 - Channel 2 use?

The Klemt BS 40 - Channel 2 uses 2× ECC83 preamp tubes and 2× EL34 power tubes.

When was the Klemt BS 40 - Channel 2 produced?

The Klemt BS 40 - Channel 2 was produced 1962–1970.

Klemt BS 40 - Channel 2 preset

Close · 62/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Klemt Echolette BS 40 was a bass-specific variant of the Showstar amplifier line, optimized for the extended low-frequency response demanded by bass guitar players. It brought the same German tube character to bass amplification with circuit modifications for tighter low-end reproduction.

Years produced: 1962–1970
Made in: Germany
Wattage: 40W
Channels: 2
Preamp tubes: 2× ECC83
Power tubes: 2× EL34

Tags: vintage, bass, clean.

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.