What tubes does the Ampeg SVP-CL - Main use?

The Ampeg SVP-CL - Main uses 3× 12AX7, 1× 12AU7 preamp tubes.

When was the Ampeg SVP-CL - Main produced?

The Ampeg SVP-CL - Main was produced 2000s.

Ampeg SVP-CL - Main preset

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

The SVP-CL is a rack-mount tube bass preamplifier based on the classic SVT preamp circuit. It delivers the full tonal character of the SVT head in a standalone preamp format, allowing users to drive any power amp of their choosing. The SVP-CL is a benchmark for studio-quality bass tone with full SVT-style EQ flexibility.

Years produced: 2000s
Made in: USA
Channels: 1
Preamp tubes: 3× 12AX7, 1× 12AU7

Tags: bass, american, modern, preamp.

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.