⚠️ A copy of Tonex software is required to use these tone models. Compatible with ToneX Pedal and Tonex One.
 
🔹 JS – Plexi Ultimate and DI v2
Amp+Cab & DI Tone Models based on the Marshall SV20C Amplifier
 
The JS Plexi Ultimate and DI v2.0 Tone Model Collection is based on the Marshall SV20C, part of the Studio Vintage series inspired by the legendary 1959 Super Lead Plexi.

Delivering the unmistakable tone that defined generations of rock, this compact powerhouse brings the full authority, dynamics, and harmonic richness of the original Plexi into a modern format — now captured in stunning detail for ToneX v2.0.
 
This expanded v2.0 collection includes 40 Tone Models captured through multiple cabinet configurations and DI (amp-only) versions. Each combination explores the amp’s full tonal range across both input channels and volume levels — from glassy cleans to roaring British crunch.
 
📦 What’s Included
10 Amp+Cab captures – Double Cream (2×12 G12H-75 Creamback-loaded cab)
10 Amp+Cab captures – 2×12 Vintage 30-loaded cab
10 Amp+Cab captures – 1×12 Celestion Heritage G12M-20 Greenback-loaded cab
10 DI (amp-only) captures – with preset-level baked-in IR of a 2×12 G12H-75 Creamback-loaded cab
Total: 40 Tone Models
 
🔤 Naming Format
JS Plexi Ultimate (DC or Grn or V30 or DI) x (i or ii) v2
Where:
DC = Double Cream (2×12 G12H-75 Creamback cab)
V30 = 2×12 Vintage 30 cab
Grn = 1×12 Heritage G12M-20 Greenback cab
DI = Amp-only capture with preset-level baked-in IR
x = Volume knob position (3L, 3, 5, 7, 10)
 • “L” after 3 indicates the Low input was used
(i or ii) = Input / channel (roman numerals, lowercase)
Examples:
JS Plexi Ultimate DC 3L i v2 → Double Cream cab, Low input, Channel 1
JS Plexi Ultimate Grn 7 ii v2 → Greenback cab, Volume 7, Channel 2
JS Plexi Ultimate V30 10 i v2 → Vintage 30 cab, Volume 10, Channel 1
JS Plexi Ultimate DI 5 ii v2 → DI amp-only, Volume 5, Channel 2
 
🔈 Input Gain Reference
Captured at 0 dBu = –11 dBFS, equivalent to running the ToneX Pedal at –3 dB Global Input Trim.
 
The JS Plexi Ultimate and DI v2 collection captures the raw energy, complex harmonics, and legendary punch of the Marshall SV20C — from vintage breakup to full-throttle Plexi grind — with unmatched realism and musicality.