Ampeg VH-150H - Channel A preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The VH-150H is a solid-state Ampeg guitar head of the SLM era, drawn in 1990 and related to the VH-140C. Channel A is the overdrive channel, with gain, diode clipping, an Ultra/Mid control, high, low and volume; channel B has gain, a bright switch, high, mid, low and volume, with its own reverb level for each channel and JFET channel switching. A 150-watt power amp, shared with the SS-150, uses two complementary MJ15022/MJ15023 output pairs with a thermal switch.

Tags: american, solid-state, two-channel, high-wattage.

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.