What tubes does the Ampeg SVP-BSP - Overdrive use?

The Ampeg SVP-BSP - Overdrive uses 3× 12AX7 preamp tubes.

When was the Ampeg SVP-BSP - Overdrive produced?

The Ampeg SVP-BSP - Overdrive was produced 2000s.

Ampeg SVP-BSP - Overdrive preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The SVP-BSP is a rack-mount bass preamp with two channels: a clean channel based on the SVT circuit and an overdrive channel for gritty, driven bass tones. The clean channel delivers classic Ampeg tube warmth while the drive channel adds harmonic saturation for more aggressive rock bass tones. A versatile studio and stage preamp.

Years produced: 2000s
Made in: USA
Channels: 2
Preamp tubes: 3× 12AX7

Tags: bass, american, modern, preamp, drive.

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.