Ibanez TSA15H preset

Verified · 91/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Ibanez TSA15H is a 15-watt tube head with a solid-state Tube Screamer built into its front end: an NJM4558 op-amp with diode clipping and Drive, Tone and Level, footswitchable, plus a switchable JFET boost. A 12AX7 provides two gain stages around a passive treble, bass and volume stack, and a second 12AX7 inverter drives two fixed-bias 6V6GTs with a 15/5-watt switch. A warm 6V6 clean beside familiar mid-hump overdrive.

• Wattage: 15W
• Channels: 1
• Preamp tubes: 2× 12AX7
• Power tubes: 2× 6V6GT

Tags: modern, hybrid, 6v6, low-wattage, 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.