Rivera Clubster 25/45 - Channel 1 preset

Verified · 83/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Rivera Clubster is a two-channel combo by Paul Rivera, who earlier redesigned Fender’s amp line in the early 1980s, built in 25 W and 45 W versions. Its preamp mixes JFET stages with a 12AX7: each channel has its own volume and bass/middle/treble, switched by photocells, with a pull-bright on channel 2. It adds a patch loop, op-amp-driven spring reverb, presence, a direct out and a 12AX7 inverter driving two octal output valves.

• Made in: USA
• Wattage: 45W
• Channels: 2
• Preamp tubes: 2× 12AX7

Tags: american, boutique, clean, crunch, el84, two-channel.

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.