Jolida JD102B preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The JD102B is a stereo valve integrated amplifier from Jolida. Each channel uses a 12AX7A and a 12AT7 long-tail pair driving two EL84s in push-pull, with 4 and 8 ohm taps and a solid-state rectifier, selectable across CD, tape, tuner and aux inputs. It is an affordable, warm EL84 hi-fi amp.

• Made in: China
• Channels: 1
• Preamp tubes: 2× 12AX7A, 2× 12AT7
• Power tubes: 4× EL84

Tags: stereo, el84, clean, low-wattage, modern.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.