The Vox Valvenergy Tone Sculptor is a tone-shaping pedal in Vox's Valvenergy line, listed at $219. Premier Guitar's reviewer found it relatively quiet in use, and described its sliders as feeling "nuanced and nicely tapered rather than like a dull axe with a few basic frequency notches."1
Controls
The Tone Sculptor is laid out as a seven-slider graphic EQ. Six sliders cover the frequency bands, and a seventh handles overall level12.
| Control | What it does |
|---|---|
| 100 Hz slider | Cuts or boosts the 100 Hz band by up to 10 dB23 |
| 250 Hz slider | Cuts or boosts the 250 Hz band by up to 10 dB23 |
| 570 Hz slider | Cuts or boosts the 570 Hz band by up to 10 dB23 |
| 800 Hz slider | Cuts or boosts the 800 Hz band by up to 10 dB23 |
| 2.2 kHz slider | Cuts or boosts the 2.2 kHz band by up to 10 dB23 |
| 5.6 kHz slider | Cuts or boosts the 5.6 kHz band by up to 10 dB23 |
| Level (master) slider | Cuts or boosts the master output by 12 dB1 |
RockBoard's PedalPedia describes the band choices as designed for intuitive tone shaping.2
The Nutube preamp
What separates the Tone Sculptor from a plain EQ is the Nutube in its preamp stage. Vox says this provides a musical distortion when the level is increased, so raising the master slider does more than make things louder: it pushes the preamp into a tube-style breakup. Players who want only equalization can keep the level moderate, while those after a touch of grit can drive it harder.2
As an EQ and preamp, it sits alongside other preamp pedals and equalization pedals, and its level control also lets it act as a clean boost when the bands are left flat21.
Power
The pedal runs on 9V DC, center negative, and draws 80 mA.2
At 80 mA, the Tone Sculptor draws more than many simple EQ pedals. A standard 9V center-negative supply will run it, but a daisy chain shared with several other pedals may not leave enough headroom.
What reviewers said
Premier Guitar reviewed the pedal in April 2025. The reviewer found it relatively quiet, and noted the price: "And at $219, the Tone Sculptor lives on the high side of the affordable range." On the sliders themselves, the reviewer wrote: "And the sliders feel nuanced and nicely tapered rather than like a dull axe with a few basic frequency notches."1
Videos
VOX Amps
VOX Amps
楽器好きにはたまらない! フーチーズ 渋谷店 / Guitar Shop Hoochie's
Questions
What frequency bands does the Vox Tone Sculptor have?
The Tone Sculptor is a graphic equalizer with six selectable bands at 100 Hz, 250 Hz, 570 Hz, 800 Hz, 2.2 kHz and 5.6 kHz. Each band is adjusted by its own slider, and each slider can cut or boost its band by up to 10 dB. A seventh slider controls the master output and cuts or boosts it by up to 12 dB.
Is the Vox Valvenergy Tone Sculptor analog?
Yes. Vox lists the circuit type as analog. The preamp stage uses a Nutube, a small tube-based component, which Vox says provides a musical distortion when the level is increased.
Does the Tone Sculptor distort when the level is raised?
It can. Vox says the Nutube in the preamp provides a musical distortion when the level is increased, so pushing the output slider harder brings a tube-style breakup on top of the equalization.
What power supply does the Vox Tone Sculptor use?
The Tone Sculptor runs on a 9V DC supply with a center-negative plug and draws 80 mA. A standard pedal power supply of that type will run it, though a daisy chain shared with higher-draw pedals is worth thinking about at 80 mA.
Sources (3)
- Vox Smooth Impact and Tone Sculptor Review, Premier Guitar, 2025-04-24
- Valvenergy Tone Sculptor by VOX, RockBoard PedalPedia, 2026
- Vox issues Valvenergy Power Burst, Tone Sculptor, Fuel Injector & Smooth Impact pedals, Guitar World, 2024-01-19
