What tubes does the Dr. Z MAZ 18 use?

The Dr. Z MAZ 18 uses 4× 12AX7, 1× 12AT7 preamp tubes and 2× EL84 power tubes.

Who famously used the Dr. Z MAZ 18?

Brad Paisley are among the notable players associated with the Dr. Z MAZ 18.

Dr. Z MAZ 18 preset

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

The Dr. Z MAZ 18 is an 18-watt single-channel amp with two cathode-biased EL84s, voiced to blend American and English EL84 character. Two 12AX7 gain stages feed a Treble/Mid/Bass tone stack and a Master, with tube-driven spring reverb mixed back in before a long-tailed-pair phase inverter that carries a Cut control. There is no negative feedback, and the supply uses a solid-state bridge with a choke.

Made in: USA
Wattage: 18W
Channels: 1
Preamp tubes: 4× 12AX7, 1× 12AT7
Power tubes: 2× EL84

Known for: Brad Paisley.

Tags: american, el84, reverb, low-wattage, boutique, 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.