What tubes does the Dr. Z Jetta (ZA-49) - Normal use?

The Dr. Z Jetta (ZA-49) - Normal uses 2× 12AX7 preamp tubes and 2× 6L6 power tubes.

When was the Dr. Z Jetta (ZA-49) - Normal produced?

The Dr. Z Jetta (ZA-49) - Normal was produced 2000s–present.

Dr. Z Jetta (ZA-49) - Normal preset

Close · 72/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Dr. Z Jetta (ZA-49) is a 6L6-powered single-channel amp delivering American clean headroom and smooth, musical overdrive at higher volumes. Designed to provide vintage-American tonal characteristics with Dr. Z's signature warm compression, it offers excellent note separation and harmonic bloom. It is a go-to for players seeking clean, glassy tones that transition naturally into crunch.

Years produced: 2000s–present
Made in: USA
Wattage: 40W
Channels: 1
Preamp tubes: 2× 12AX7
Power tubes: 2× 6L6

Tags: american, clean, crunch.

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.