What tubes does the Ampeg SVT-5PRO - Overdrive use?

The Ampeg SVT-5PRO - Overdrive uses 1× 12AX7 preamp tubes.

When was the Ampeg SVT-5PRO - Overdrive produced?

The Ampeg SVT-5PRO - Overdrive was produced 2002–2005.

Ampeg SVT-5PRO - Overdrive preset

Verified · 86/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Ampeg SVT-5PRO is a hybrid bass head from 2001. Its clean channel runs through a 12AX7 with gain, bass, mid and treble, Ultra Low and Ultra High switches, a -15 dB pad, mute and an optical compressor, while a second, overdrive channel (on its own preamp board) can be selected or combined with it from a button or footswitch. An octave generator, effects loops, a bi-amp crossover with balance, a limiter and balanced outputs complete the preamp.

Years produced: 2002–2005
Wattage: 1350W
Channels: 2
Preamp tubes: 1× 12AX7

Tags: american, bass, hybrid, 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.